What is a hematocrit (HCT) blood test? How is it performed? What do the results mean? Get all the answers in this comprehensive guide covering the purpose, process, and interpretation of the HCT test.

Understanding the Hematocrit (HCT) Blood Test

A hematocrit (HCT) test is a routine blood test that measures the percentage of red blood cells (RBCs) in the total volume of blood. This measurement provides insights into the viscosity, or thickness, of an individual’s blood and can help healthcare providers screen, diagnose, and monitor various blood and bone marrow-related conditions.

Purpose and Uses of the HCT Test

The primary purpose of an HCT test is to evaluate the proportion of RBCs in a person’s blood. This information is crucial because RBCs are responsible for transporting oxygen to the body’s cells and carrying carbon dioxide back to the lungs. Abnormal HCT levels can indicate underlying health issues, such as anemia, polycythemia, or dehydration.

Healthcare providers may order an HCT test as part of a complete blood count (CBC) during a routine check-up or to investigate specific symptoms, monitor chronic conditions, or track the progress of medical treatments.

What Does the HCT Test Measure?

The HCT test measures the percentage of the total blood volume that is composed of RBCs. This percentage is known as the hematocrit level. A normal HCT range is typically between 38% and 50% for women and 42% to 52% for men.

Factors that can affect HCT levels include the number of RBCs, the size of RBCs, and the volume of other blood components, such as plasma and white blood cells. Relative changes in these factors can lead to abnormal HCT results, even if the RBC count is within the normal range.

Symptoms That May Prompt an HCT Test

Your healthcare provider may order an HCT test if you are experiencing symptoms that may be related to an RBC disorder, such as:

• Fatigue
• Moodiness
• Headaches
• Brain fog or difficulty concentrating
• Heavy menstrual flow
• Poor nutrition
• Blood in your stools or vomit
• Cancer and cancer treatment
• Excessive diarrhea or vomiting
• Leukemia or other conditions associated with bone marrow
• Chronic health conditions, including kidney diseases

Getting an HCT Test

An HCT test requires a sample of blood, which is typically obtained through a blood draw, also known as a venipuncture. This procedure is carried out by a healthcare provider or a laboratory technician in a medical setting.

It is important to note that HCT testing is not usually performed at home, as it requires specialized tools and trained personnel to collect and analyze the blood sample.

Interpreting HCT Test Results

After the blood sample is collected, it is analyzed in a laboratory to determine the HCT level. The results are then reported as a percentage, indicating the proportion of RBCs in the total blood volume.

What do the results mean? A normal HCT range is typically 38% to 50% for women and 42% to 52% for men. Abnormal HCT levels can be indicative of various health conditions, such as anemia, dehydration, or polycythemia. Your healthcare provider will interpret your HCT results in the context of your overall health and any other relevant tests or symptoms.

Factors Affecting HCT Levels

HCT levels can be influenced by a variety of factors, including:

• Age and gender
• Hydration status
• Presence of certain medical conditions (e.g., anemia, polycythemia)
• Medications (e.g., diuretics, corticosteroids)
• Altitude or living at high elevations
• Pregnancy

Your healthcare provider will consider these factors when interpreting your HCT test results and determining the appropriate next steps, if any.

Conclusion

The hematocrit (HCT) blood test is a routine and important diagnostic tool that provides valuable information about the composition of an individual’s blood. By understanding the purpose, process, and interpretation of the HCT test, you can work with your healthcare provider to effectively monitor your overall health and address any underlying blood-related conditions.

Hematrocit Blood Test – Testing.com

Test Quick Guide

Blood is made up of red blood cells (RBC), white blood cells (WBC), and platelets which are suspended in a liquid called plasma. A hematocrit (HCT) lab test determines the percentage of the blood that is composed of RBC.

An HCT test helps your medical provider screen for, diagnose, and monitor conditions that affect your blood or bone marrow. A measurement of HCT is routinely included in a complete blood count (CBC) but may also be ordered on its own if your provider suspects a condition affecting your RBC.

About the Test

Purpose of the test

The purpose of an HCT test is to evaluate the percentage of blood that is made up of RBC. This measurement indicates the viscosity, or thickness, of the blood and depends on the size and number of RBCs in a blood sample. HCT is most often evaluated as part of a CBC, which also includes measurements of RBC, WBC, platelets, and hemoglobin.

Often ordered during a routine medical check-up, a CBC is a common lab test. A CBC that includes HCT may also be ordered to evaluate the cause of certain symptoms, monitor patients receiving medical treatments, and track those with chronic health issues that affect the blood.

What does the test measure?

HCT measures the proportion of the blood that is composed of RBC and is expressed as a percentage.

RBCs are critical for the distribution of oxygen to the body’s cells. Once oxygen is used by cells to produce energy, RBCs transport the waste product, carbon dioxide, from the cells back to the lungs.

HCT levels can be affected by an increase or decrease in the number of RBCs and by changes in other components of the blood. Because HCT measures the percentage of RBC in the blood, relative increases or decreases in other blood components, like plasma or WBC, can lead to abnormal HCT results even if the RBC count is normal.

When should I get this test?

Your provider may test HCT as part of a CBC or if you are experiencing symptoms of an RBC disorder such as anemia. Indications for testing HCT include:

• Fatigue
• Moodiness
• Headaches
• Brain fog or difficulty concentrating
• Heavy menstrual flow
• Poor nutrition
• Blood in your stools or vomit
• Cancer and cancer treatment
• Excessive diarrhea or vomit
• Leukemia or other conditions associated with bone marrow
• Chronic health conditions, including kidney diseases

Finding an HCT Test

How can I get an HCT test?

An HCT test requires a sample of blood and is typically ordered by a doctor. A blood draw, also called venipuncture, is conducted by a health provider or a laboratory technician in a medical setting.

Can I take the test at home?

HCT testing is not usually performed at home. Conducting this test requires specialized tools and trained laboratory personnel.

How much does the test cost?

The cost of an HCT test depends on several factors, including other tests performed at the same time and whether or not you have health insurance or are paying out-of-pocket. The cost of HCT testing is often covered by insurance due to the routine nature of the test.

Refer to your health care provider, medical facility, or insurance company for specific details on costs, copays, and deductibles.

Taking an HCT Test

A blood sample is needed for HCT testing. To collect a blood sample, a needle is inserted into your arm and a vial, also known as a vacutainer, is placed on the provider’s end of the needle. The vial is then filled with blood that is used to test your hematocrit.

Before the test

There is no special preparation needed prior to an HCT test, unless specified by your provider.

During the test

Blood draws are a common medical procedure. Usually, blood is drawn from either the top of the hand or the vein on the inside of the elbow. To conduct a blood draw:

1. An antiseptic wipe is used to cleanse the area prior to the blood draw.
2. A band is placed around your arm to increase pressure in your vein, making your vein more visible and easier to access.
3. A needle is placed in your vein and a test tube is attached to the needle and filled with blood.
4. If you are getting other blood tests in addition to an HCT test you may have more than one vial of blood drawn.

After the test

Once the blood is drawn, the nurse or phlebotomist may ask you to hold pressure on the site of the venipuncture with a cotton swab for a few minutes. They may place a bandage on the cotton swab to maintain pressure.

After any blood draw, you will want to watch out for temporary side effects such as dizziness or lightheadedness. Your provider may want you to stay seated for a few minutes until they can determine that you are safe to get up and walk or drive.

Other than possible lightheadedness and bruising at the site where blood was drawn, there are few potential side effects from a blood draw.

HCT Test Results

Receiving test results

After the test is complete, results will be sent to your doctor for interpretation. HCT test results are most often part of the results of a CBC, which may be available to your doctor within a few minutes or up to several days.

Interpreting test results

HCT test results depend on several factors, including age and sex. The cutoff values for a normal test result, called its reference range, may also vary depending on the laboratory or methods used to conduct the test. Because of the many factors that affect HCT, it’s important to talk to a doctor for support in understanding your test result.

The reference ranges listed below describe common reference ranges for hematocrit:

Hematocrit Reference Ranges for Adults

An abnormal HCT level can indicate that your blood is either too thin or too thick compared to an average person of a similar population.

An abnormally low level of HCT indicates that your cells may not be getting enough oxygen, a condition known as anemia. Abnormally low HCT may be related to a variety of causes, including:

• Loss of blood
• Poor nutrition with low intake of iron, vitamin B6, vitamin B12 or folate
• Bone marrow disorders or cancers such as leukemia, lymphoma, multiple myeloma, or other cancers that spread to the marrow
• Destruction of RBCs
• Excessive water in the body

High HCT levels indicate conditions where there is either an overproduction of RBC or an abnormally high concentration of RBCs in your body. Some examples of causes of a high HCT include:

• Dehydration
• Lung disease
• Congenital heart disease
• Heart failure
• Certain types of kidney tumors
• Smoking
• Living at high altitudes
• Secondary polycythemia, a rare group of blood disorders caused by heritable changes to genes involved in the production of RBCs causing the body to produce too many RBCs
• Polycythemia vera, a rare blood disease in which the body produces too many RBCs

Although the results are accurate, laboratory parameters and provider reference ranges as well as personal variables may be subject to differences.

Abnormal HCT test results may or may not require additional follow-up testing. HCT is often evaluated alongside other components of a CBC to look for signs of disease or monitor health conditions.

For example, a doctor may order additional testing if you have low HCT to evaluate the cause of anemia. Testing for anemia may include a reticulocyte count, a renal panel, a liver panel, hemolysis testing, or a blood smear.

Follow-up testing is based on your symptoms, medical history, and the results of other tests. For questions about follow-up testing, speak with your doctor.

Talking with your doctor can help you understand your HCT result and any next steps. You may wish to ask the following questions:

• What does my result mean for my health?
• Is there anything I can do to change my HCT levels?
• Is there any further testing that needs to be done based on my HCT levels?

Resources

• CBC Blood Test (Complete Blood Count)
  Learn More
• Red Blood Cell Count (RBC) Test
  Learn More
• Hemoglobin Blood Test
  Learn More
• White Blood Cell Count (WBC Blood Test)
  Learn More
• Platelet Count (PLT) Blood Test
  Learn More
• Blood Smear
  Learn More
• Iron Test
  Learn More
• National Heart, Lung, and Blood Institute: Anemia
  Learn More
• National Heart, Lung and Blood Institute: Thalassemias
  Learn More

Sources

See More

See Less

Take Control of Your Health

This website uses cookies to ensure you get the best experience on our website.

I Accept

Hematocrit Information | Mount Sinai

HCT

Hematocrit is a blood test that measures how much of a person’s blood is made up of red blood cells. This measurement depends on the number of and size of the red blood cells.

Blood transports oxygen and nutrients to body tissues and returns waste and carbon dioxide. Blood distributes nearly everything that is carried from one area in the body to another place within the body. For example, blood transports hormones from endocrine organs to their target organs and tissues. Blood helps maintain body temperature and normal pH levels in body tissues. The protective functions of blood include clot formation and the prevention of infection.

How the Test is Performed

A blood sample is needed.

How to Prepare for the Test

No special preparation is necessary for this test.

How the Test will Feel

When the needle is inserted to draw blood, some people feel moderate pain. Others feel only a prick or stinging. Afterward, there may be some throbbing or a slight bruise. This soon goes away.

Why the Test is Performed

The hematocrit is almost always done as part of a complete blood count (CBC).

Your health care provider may recommend this test if you have signs of or are at risk for anemia. These include having:

• Before and after major surgery
• Blood in your stools, or vomit (if you throw up)
• Chronic medical problems, such as kidney disease or certain types of arthritis
• During pregnancy
• Fatigue, poor health, or unexplained weight loss
• Headaches
• Heavy menstrual periods
• Leukemia or other problems in the bone marrow
• Monitoring during treatment for cancer
• Monitoring medicines that may cause anemia or low blood counts
• Monitoring of anemia and its cause
• Poor nutrition
• Problems concentrating

Normal Results

Normal results vary, but in general they are:

• Male: 40. 7% to 50.3%
• Female: 36.1% to 44.3%

For babies, normal results are:

• Newborn: 45% to 61%
• Infant: 32% to 42%

The examples above are common measurements for results of these tests. Normal value ranges vary slightly among different laboratories. Some labs use different measurements or test different samples. Talk to your provider about the meaning of your specific test results.

What Abnormal Results Mean

Low hematocrit may be due to:

• Anemia
• Bleeding

• Bone marrow being unable to produce new red blood cells. This may be due to leukemia, other cancers, drug toxicity, radiation therapy, infection, or bone marrow disorders 

• Chronic illness
• Chronic kidney disease
• Destruction of red blood cells (hemolysis)
• Leukemia
• Malnutrition
• Too little iron, folate, vitamin B12, and vitamin B6 in the diet
• Too much water in the body

High hematocrit may be due to:

• Bone marrow disease that causes abnormal increase in red blood cells (polycythemia vera)
• Congenital heart disease
• Exposure to high altitude
• Failure of the right side of the heart
• Low levels of oxygen in the blood
• Scarring or thickening of the lungs
• Too little water in the body (dehydration)

Risks

There is little risk involved with having your blood taken. Veins and arteries vary in size from one person to another and from one side of the body to the other. Obtaining a blood sample from some people may be more difficult than from others.

Other risks associated with having blood drawn are slight but may include:

• Excessive bleeding
• Fainting or feeling lightheaded
• Multiple punctures to locate veins
• Hematoma (blood buildup under the skin)
• Infection (a slight risk any time the skin is broken)

Chernecky CC, Berger BJ. H. Hematocrit blood. In: Chernecky CC, Berger BJ, eds. Laboratory Tests and Diagnostic Procedures. 6th ed. St Louis, MO: Elsevier Saunders; 2013:620-621.

Kliegman RM, St. Geme JW, Blum NJ, Shah SS, Tasker RC, Wilson KM. Blood disorders. In: Kliegman RM, St. Geme JW, Blum NJ, Shah SS, Tasker RC, Wilson KM, eds. Nelson Textbook of Pediatrics. 21st ed. Philadelphia, PA: Elsevier; 2020:chap 124.

Means RT. Approach to the anemias. In: Goldman L, Schafer AI, eds. Goldman-Cecil Medicine. 26th ed. Philadelphia, PA: Elsevier; 2020:chap 149.

Vajpayee N, Graham SS, Bem S. Basic examination of blood and bone marrow. In: McPherson RA, Pincus MR, eds. Henry’s Clinical Diagnosis and Management by Laboratory Methods. 24th ed. Philadelphia, PA: Elsevier; 2022:chap 31.

Last reviewed on: 1/9/2022

Reviewed by: David C. Dugdale, III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.

Level 1 immunogram tests – find out prices for analysis and take them in Katav-Ivanovsk

• org/ListItem”> INVITRO
• Analyzes
• Immunological…
• Complex…
• Immunogram tests 1…

• • Program examinations for office workers
  • Examination of household personnel
  • Assessment of the risk of developing diseases of the cardiovascular system
  • Diagnosis of antiphospholipid syndrome (APS)
  • COVID-19
  • Liver function tests
  • Kidney and genitourinary tests
  • Gastrointestinal tests
  • Connective tissue tests
  • Diabetes tests
  • Diagnosis of anemia
  • Oncology
  • Diagnosis and control of therapy osteoporosis
  • Blood biochemistry
  • Thyroid diagnostics
  • Hospital profiles
  • Healthy you – healthy country
  • Gynecology, reproduction
  • Healthy child: for children from 0 to 14 years old
  • Sexually transmitted infections (STIs)
  • Weight problems
  • VIP-about follow-up
  • Respiratory diseases
  • Allergy
  • Determination of micronutrient reserves in the body
  • Beauty
  • Vitamins
  • Diets
  • Pre-diet laboratory tests
  • Sports profiles
  • Hormonal tests for men
  • Depression
  • Laboratory tests for medical information

• • Biochemical tests
    • Glu goat and metabolites of carbohydrate metabolism
    • Proteins and amino acids
    • Bile pigments and acids
    • Lipids
    • Enzymes
    • Kidney function markers
    • Minerals/electrolytes:
    • Vitamins
    • Proteins involved in iron metabolism
    • Cardiospecific proteins
    • Markers of inflammation
    • Markers of bone metabolism and osteoporosis
    • Determination of drugs and psychoactive substances
    • Biogenic amines 900 04
    • Specific proteins
  • Hormonal studies
    • Laboratory evaluation pituitary-adrenal system
    • Laboratory assessment of the somatotropic function of the pituitary gland
    • Laboratory assessment of thyroid function
    • Assessment of parathyroid function
    • Pituitary gonadotropic hormones and prolactin
    • Estrogens and progestins
    • Assessment of androgenic function
    • Non-steroidal regulatory factors of the sex glands
    • Pregnancy monitoring, biochemical markers of fetal status
    • Laboratory evaluation of endocrine pancreatic function and diagnosis of diabetes
    • Biogenic amines
    • Laboratory assessment of the state of the renin-angiotensin-aldosterone system
    • Factors involved in the regulation of appetite and fat metabolism
    • Laboratory assessment of the endocrine function of the gastrointestinal tract
    • Laboratory assessment of the hormonal regulation of erythropoiesis
    • Laboratory assessment of pineal function
  • Analyzes for healthy lifestyle
  • Hematological examinations
    • Clinical blood test
    • Immunohematological examinations
    • Coagulological studies (coagulogram)
  • Immunological studies
    • Comprehensive immunological studies
    • Lymphocytes, subpopulations
    • Immunoglobulins
    • Component complement s
    • Regulators and mediators of immunity
  • Allergological tests
    • IgE – allergen-specific allergy tests), mixtures, panels, total IgE.
    • IgG, allergen-specific
    • ImmunoCAP technology
    • AlcorBio technology
    • ALEX technology
  • Autoimmune disease markers
    • Systemic connective tissue diseases
    • Rheumatoid arthritis, lesions joints
    • Antiphospholipid syndrome
    • Vasculitis and kidney lesions
    • Autoimmune lesions of the gastrointestinal tract . Celiac disease
    • Autoimmune liver disease
    • Neurological autoimmune disease
    • Autoimmune endocrinopathies
    • Autoimmune skin diseases
    • Lung and heart diseases
    • Immune thrombocytopenia
  • Tumor markers
  • COVID- 19
  • Microelements
    • Aluminum
    • Barium
    • Beryllium
    • Boron
    • Vanadium
    • Bismuth
    • Tungsten
    • Gallium
    • Germanium
    • Iron
    • Gold
    • Iodine
    • Cadmium
    • Potassium
    • Calcium
    • Cobalt
    • Silicon
    • Lanthanum
    • Lithium
    • Magnesium
    • Manganese

    90 015 Copper

    • Molybdenum
    • Arsenic
    • Sodium
    • Nickel
    • Tin
    • Platinum
    • Mercury
    • Rubidium
    • Lead
    • Selenium
    • Silver
    • Strontium
    • Antimony
    • Thallium
    • Phosphorus
    • Chrome
    • Zinc
    • Zirconium
  • Analysis of the structure of the kidney stone
  • Urinalysis
    • Clinical analysis of urine
    • Biochemical analysis of urine

    9 0004

  • Fecal examination
    • Clinical stool examination
    • Fecal chemistry
  • Semen examination
    • Antisperm antibodies
  • Diagnosis of infectious diseases
    • Viral infections
    • Bacterial infections
    • Fungal infections
    • Parasitic infections
    • Streptococcal infections
  • Cytological examinations
  • Histological examinations

  9001 5 Oncogenetic studies

  • Cytogenetic studies
  • Non-invasive prenatal tests
  • Genetic predispositions
    • Lifestyle and genetic factors
    • Reproductive health
    • Immunogenetics
    • Rh factor
    • Blood coagulation system
    • Diseases of the heart and blood vessels
    • Diseases of the gastrointestinal tract
    • Diseases of the central nervous system
    • Oncological diseases
    • Metabolic disorders
    • Description of the results of genetic studies by a geneticist
    • Pharmacogenetics
    • System for detoxification of xenobiotics and carcinogens
    • Fetal sex determination
    • Fetal Rh factor
  • Hereditary diseases
  • Hereditary metabolic diseases
    • Hereditary metabolic diseases
    • Additional tests (after screening and consultation with a specialist)

    9000 4

  • Definition of biological relationship: paternity and motherhood
    • Definition biological relationship in the family: fatherhood and motherhood
  • Water and soil quality research
    • Water quality test
    • Soil test
  • Diagnosis of liver pathology without biopsy: FibroMax, FibroTest, SteatoScreen
    • Calculated tests based on SteatoScreen results without blood sampling

    900 13

    • Dysbiotic conditions of the intestine and urogenital tract
      • General assessment of the natural microflora of the body
      • Study of the microbiocenosis of the urogenital tract
      • Femoflor: profiles of studies of dysbiotic conditions of the urogenital tract in women
      • Specific assessment of the natural microflora of the body
    • Test results form in English
  • • Blood
    • Urine 900 04
    • Cal
    • Spermogram
    • Gastropanel
  • • Endoscopy
    • Functional diagnostics
    • ultrasound
  • • Examinations we do not do
    • New tests
    • Getting results
    • Additional research orders
    • Medical consultant service
    • Professional position
      • Venous blood for analysis
      • Tumor markers. View of a practical oncologist. Laboratory justifications.
      • Testosterone: diagnostic threshold, method-dependent reference values ​​
      • Laboratory assessment of lipid parameters in INVITRO
      • Lipid profile: fasting or not fasting

  The cost of analyzes is indicated without taking biomaterial

  Description

  Method of determination
  Phagocytic activity – assessment of phagocytosis of bacteria with a fluorescent label. Immunoglobulins A, M, G – immunoturbidimetry.

  Test material
  Whole blood with EDTA, whole blood with heparin, blood serum

  Evaluation of the state of various parts of the immune system used in the diagnosis of primary and secondary immunodeficiencies, autoimmune, lymphoproliferative, infectious, hematological diseases.

  The profile includes the following indicators:

  • Concentration CEC
  • Pathogenicity CEC
  • Act. neutrophil phagocytosis
  • Phagocyte. the number of neutrophils.
  • NBT spontaneous, activity (neutral)
  • HCT induced, activity (neutral)
  • HCT Stimulation Index (neutral)
  • Act. phagocytosis of monocytes
  • Phagocyte. number of monocytes
  • NST spontaneous, activity (mon.)
  • HCT induced, activity (mon.)
  • NST test stimulation index (mon.)
  • Leukocytes
  • Neutrophils (total number)
  • Lymphocytes, %
  • Lymphocytes
  • Monocytes, %
  • Monocytes
  • Eosinophils
  • Basophils
  • IgA
  • IgM
  • IgG

  The main subpopulations of lymphocytes:

  T-lymphocytes are lymphocytes that mature in the thymus (hence their name). They control the work of B-lymphocytes responsible for the formation of antibodies, i.e. for the humoral immune response. T-helpers, Th (from English to help – to help) – a type of T-lymphocytes, carry structures on their surface that facilitate the recognition of antigens presented by auxiliary cells, participate in the regulation of the immune response, producing various cytokines. Cytotoxic T cells – recognize antigen fragments on the surface of target cells, orient their granules towards the target and release their contents in the area of ​​contact with it. At the same time, some cytokines are a signal of death (by the type of apoptosis) for target cells.

  B-lymphocytes (from the Latin “bursa” – a bag named after the bag of Fabricius, in which these lymphocytes mature in birds) develop in the lymph nodes and other peripheral organs of the lymphoid system. On the surface, these cells carry immunoglobulins that function as antigen receptors. In response to interaction with the antigen, B-lymphocytes respond by dividing and differentiating into plasma cells that produce antibodies, through which humoral immunity is provided.

  NK cells (natural killer cells) or natural killer cells with natural, non-immune cytotoxic activity against neoplastically altered target cells, which are neither mature T- or B-lymphocytes, nor monocytes. T-NK cells (NKTs) are cells with natural non-immune killer activity that have the characteristics of T-lymphocytes.

  Activated lymphocytes.

  HLA-DR is one of the MHC class II (major histocompatibility complex) antigens involved in the presentation of potentially foreign antigens, which is necessary for the formation of an adequate immune response. In immunophenotyping, it can be used as a marker of activated cells. CD3+HLA-DR+ cells are mature activated human T-lymphocytes. CD3-HLA-DR+ – activated cells other than T-lymphocytes (B-lymphocytes and activated NK).

  The ability of lymphocytes to activate.

  The ability of lymphocytes to activate in this test is assessed by the content of lymphocytes expressing CD69 in response to incubation in the presence of PHA (plant-derived mitogen). CD69 (other names – activation inducer molecule, AIM; early activation antigen, EA-1) is an early activation marker, type I transmembrane protein. This protein is involved in the early mechanisms of activation of T cells, NK cells, B cells, monocytes and platelets.

  Phagocytic activity of leukocytes.

  Data on the phagocytic activity of neutrophils and monocytes (relative content of cells that phagocytized fluorescently labeled bacteria added to the sample during incubation) allow us to evaluate the reserve capacity of these cells to absorb and digest foreign agents.

  Circulating immune complexes general (CIC)

  The simultaneous presence of high concentrations of antigens and their specific antibodies can lead to the formation of circulating immune complexes. Immune complexes can leave the bloodstream in small vessels and be deposited in tissues, for example, in the glomeruli of the kidneys, in the lungs, skin, joints, and vessel walls. CECs have the ability to bind and activate complement, which leads to tissue damage. An increase in the level of the CEC can be observed in autoimmune diseases, chronic infectious diseases, in which the constant production of an antigen by an infectious agent is combined with an immune response to it (chronic hepatitis). Clinically, this is often manifested by glomerulonephritis, arthritis, and neuropathy. Despite the direct role in the pathogenesis of some diseases, the determination of the CEC is not always informative, since the amount of immune complexes deposited in tissues is more important than the number of complexes circulating in the blood. The study of the CEC may not be sufficiently sensitive and specific in the diagnosis of diseases caused by immune complexes, and should be supplemented by the study of the effects of the CEC on organ function (for example, creatinine concentration and urinalysis), as well as the determination of C3 C4 complement components (see test No. 193), the number of which decreases due to increased consumption.

  Immunoglobulins. See information for tests Immunoglobulins IgG, IgA, IgM, – Nos. 45, 46, 47.

  Immunological data are interpreted by an immunologist in combination with all clinical and anamnestic data of a particular patient. When assessing the immune status of a patient, the results of the study are evaluated in terms of the nature and stage of the pathological process, concomitant diseases, medication, etc. In this case, not only the absolute values ​​of individual indicators are important, but also their ratio and dynamics of indicators. Changes in immunological parameters can be a manifestation of the body’s normal response to the impact of physiological or pathological factors (with a different pattern of shifts at different stages of the disease), reflect excessive activation, depletion of the immune system, characterize a congenital or acquired defect in individual parts of the immune system.

  Preparation

  Strictly on an empty stomach (from 7.00 to 11.00) after an overnight fasting period of 8 to 14 hours.

  On the eve of the study, it is necessary to exclude increased psycho-emotional and physical activity (sports training), alcohol intake, and smoking an hour before the study.

  Indications for use

  • Recurrent infections, infectious diseases with a chronic and protracted course.
  • Suspicion of genetically determined or acquired immunodeficiency.
  • Autoimmune diseases.
  • Allergic diseases.
  • Suspicion of acquired immunodeficiency syndrome (AIDS).
  • Oncological diseases.
  • Examination of recipients before and after organ transplantation.
  • Examination of patients before major surgery.
  • Complicated course of the postoperative period.
  • Control of therapy with cytostatics, immunosuppressants and immunomodulators.

  Interpretation of results

  Interpretation of test results contains information for the attending physician and is not a diagnosis. The information in this section should not be used for self-diagnosis or self-treatment. An accurate diagnosis is made by the doctor, using both the results of this examination and the necessary information from other sources: history, results of other examinations, etc.

  Immunological data are interpreted by the doctor in combination with all clinical and anamnestic data of a particular patient. When assessing the immune status of a patient, the results of the study are evaluated in terms of the nature and stage of the pathological process, concomitant diseases, medication, etc. In this case, not only the absolute values ​​of individual indicators are important, but also their ratio and dynamics of indicators.

  9062 9

  90 662

  9066 2

  906 62

  9063 0 Male and Female

  Test name	Gender	Age	Reference values ​​	Units measurements
  Ig A	Male and Female	0 days – 12 months	0.0 – 0.3	g/l
  	Male and Female	12 months – 3 years	0. 0 – 0.9
  	Male and Female	3 years – 6 years	0.3 – 1.5
  	Male and Female	6 years – 14 years	0.5 – 2.2
  	Male and Female	14 – 19 years old	0.5 – 2.9
  	Male and Female	19 years – 120 years	0.7 – 4.0
  Ig M	Male and Female 0633	0.06 – 0.21	g/l
  	Female	3 months – 12 months		0.17 – 1.50
  	Male	3 months – 12 months		0.17 – 1.43
  	Female	12 months – 12 years		0.47 – 2.40
  	Male	12 months – 12 years		0.41 – 1.83
  	Female	12 years – 120 years		0. 33 – 2.93
  	Male	12 – 120		0.22 – 2.40
  Ig G	Women 2
  	Male	0 days – 30 days	3.97 – 17.65
  	Female	30 days – 12 months	2.03 – 9.34
  	Male	30 days – 12 months	2.05 – 9.48
  	Female	12 months – 2 years	4.83 – 12.26
  	Male	12 months – 2 years	4.75 – 12.10
  	Female	2 years – 120 years	5.52 – 16.31
  	Male	2 years – 120 years	5.40 – 18.22
  Basophils	Male and Female	1 day – 120 years	0 .0 – 1.0	%
  Concentration CEC	Male and Female	0 days – 120 years	0 – 90	c.u.
  CEC pathogenicity	Male and Female	0 days – 120 years	1. 1 – 1.5 – medium, pathogenic > 1.5 – small, pathogenic	c.u.
  Eosinophils	Male and Female	1 day – 15 days	1.0 – 6.0	%
  	Male and Female	15 days – 12 months	1.0 – 5.0
  	Male and Female	12 months – 2 years 0
  	Male and Female	2 years – 5 years	1.0 – 6.0
  	Male and Female	5 years – 120 years	1.0 – 5.0
  Act. phagocytosis of monocytes	Male and Female	12 months – 120 years	33 – 57	%
  Act. phagocytosis of neutrophils	Male and Female	12 months 120 years	50 – 85	%
  Phagocyte. number of monocytes	Male and Female	12 months – 120 years	> 2. 3	particles/phagocytes
  Phagocyte. the number of neutrophils.	Male and Female	12 months – 120 years 99/L
  Male and Female	2 days – 5 days	1.60 – 6.0
  Male and Female	5 days – 28 days	2.80 – 9.00
  Male and Female	28 days – 6 months	4.00 – 13.50
  Male and Female	6 months – 12 months	4.00 – 10.50
  Male and Female	12 months – 2 years	3.00 – 9.50
  Male and Female	2 years – 4 years	2.00 – 8.00
  Male and Female	4 years – 6 years	1.50 – 7.00
  Male and Female	6 years – 10 years	1.50 – 6.50
  Male and Female	10 years – 21 years	1.00 – 4.80
  Female	21 – 120 years	1. 18 – 3.74
  Male	21 – 120 years old	1.32 – 3.57
  Monocytes, %	Male and Female 9063 3	1 day – 15 days	5.0 – 15.0	%
  	Male and Female	15 days – 12 months	4.0 – 10.0
  	Male and Female	12 months – 2 years	3.0 – 10.00
  	Male and Female	2 years – 5 years 99/L
  	Male and Female	2 days – 28 days	0.00 – 1.70
  Male and Female	28 days – 6 months	0.00 – 1.17
  male and female	6 months – 12 months	0.00 – 1.15
  male and female	12 months – 2 years	0.00 – 1.00
  Male and Female	2 years – 21 years	0.00 – 0.80
  Male and Female	21 – 120 years	0. 20 – 0.95
  Neutrophils (total) 90 633	Male and Female	0 days – 15 days	31 .0 – 56.0	%
  	Male and Female	15 days – 12 months	17.0 – 51.0
  	Male and Female	12 months – 2 years	29, 0 – 54.0
  	Male and Female	2 years – 5 years	33.0 – 61.0
  	Male and Female	5 years – 7 years	39.0 – 64.0
  	Male and Female	7 years – 9 years	42.0 – 66.0
  	Male and Female	9 years – 11 years	44.0 – 66.0
  	11 years old – 15 years old	46.0 – 66.0
  	Male and Female	15 years old – 120 years old 99/L
  Male and Female	12 months – 2 years	6.00 – 17.00
  Male and Female	2 years – 4 years	5. 50 – 15.50
  Male and Female	4 years – 6 years	5.00 – 14.50
  Male and Female	6 years – 10 years	4.50 – 13.50
  Male and Female	10 years – 16 years	4.50 – 13.00
  Male and Female	16 years – 120 years	4.50 – 11.0
  HCT induced, activity (neutral) 9063 2	Male and Female	12 months – 120 years	70 – 95	%
  HCT induced, activity (mon.)	Male and Female	12 months – 120 years	47 – 63	%
  Stimulus index . NST-test (neutral)	Male and Female	0 days – 120 years	> 4.5	c.u.
  Stim. NST-test (mon.)	Male and Female	0 days – 120 years	> 4.5	c.u.
  NST spontaneous activity (neutral)	Male and Female	12 months – 120 years	0. 00 – 15.00	%
  NBT spontaneous, activity (mon. )	Male and Female	12 months – 120 years	0 – 10	%

  In this section you can find out how much it costs to complete this study in your city, read the description of the test and the table for interpreting the results. When choosing where to take the “Level 1 Immunogram Tests” analysis in Katav-Ivanovsk and other cities of Russia, do not forget that the price of the analysis, the cost of the procedure for taking biomaterial, the methods and terms for performing studies in regional medical offices may differ.

  Evaluation of the bactericidal activity of neutrophils according to the nitroblue tetrazolium reduction test (NBT-test) CMD laboratory in Moscow. Call: 8 (495) 120-13-12

  print version

  Biomaterial

  For this study, the laboratory accepts the following biomaterial:

  • Blood with heparin

  
  Restrictions in reception of a biomaterial are possible. Check the schedule of the office you need.

  Preparation for the study

  Blood sampling is carried out strictly on an empty stomach (6-8 hours after the last meal).

  Evaluation of the function of phagocytic cells is of great diagnostic value in infectious diseases. Neutrophils, monocytes/macrophages, and immature dendritic cells are considered to be the main phagocytes of greatest importance in anti-infective immunity. There are 2 types of test: spontaneous HCT test and stimulated HCT test.

  Indications for examination:

  • Examination for infectious diseases
  • Evaluation of the effectiveness of therapy

  Reference values:

  Parameter	Men	Women	Unit rev.
  Spontaneous HBT test activity index	2-26	2-28	c. u.
  Activity index of the stimulated NBT-test	Reference values ​​are not used, the assessment is carried out by the attending physician, taking into account clinical and other laboratory data.		c.u.
  Percentage of HBT-positive leukocytes in a spontaneous test	2-18	1-19	%
  Percentage of HCT-positive leukocytes in the stimulated test	Reference values ​​are not used, the assessment is carried out by the attending physician, taking into account clinical and other laboratory data.		%

  Interpretation is carried out by a doctor, taking into account clinical manifestations and anamnesis data.

  Downgrade	Level up
  Congenital defects of the phagocytic system Chronic infections	Bacterial infections Autoimmune diseases Allergic diseases

  Please note that the interpretation of research results, diagnosis, and treatment, in accordance with Federal Law No. doctor of the relevant specialization.

  Code:

  130005

  can be taken at home

  Price:

  When ordering several services at a time, the service for collecting biomaterial is paid only once.

  620
  R.

  • + 220 rub. Drawing blood

  Deadline:

  The specified period does not include the day of taking the biomaterial.

  1-5 c.d.

  Order

  with this analysis

  Complete blood count + ESR with leukocyte formula (with microscopy of a blood smear in the presence of pathological changes), venous blood

  • results in 3-6 hours (CITO)

  Code:

  110006

  Deadline:

  1 k.d.

  Price:
  755 rubles

  Ferritin (Ferritin)

  • results in 3-6 hours (CITO)

  Code:

  0

  Deadline:

  1 k. d.

  Price:
  760 rubles

  Study of lymphocyte subpopulations, minimal panel (subpopulations of lymphocytes in human peripheral blood)

  Code:

  130001

  Deadline:

  1-5 k.d.

  Price:
  3970 r.

  Study of subpopulations of lymphocytes, extended panel (subpopulations of lymphocytes in human peripheral blood)

  Code:

  130006

  Deadline:

  1-5 k.d.

  Price:
  7660 r.

  Study of subpopulations of lymphocytes, level 1 panel (subpopulations of lymphocytes in human peripheral blood)

  Code:

  130009

  Deadline:

  1-5 k.