What is a hematocrit test. How is hematocrit measured. What do hematocrit results indicate. When is a hematocrit test ordered. What factors can affect hematocrit levels. How are abnormal hematocrit results interpreted. What conditions are associated with high or low hematocrit.

What is Hematocrit (HCT) and Why is it Important?

Hematocrit (HCT) is a crucial blood test that measures the volume of red blood cells (RBCs) in relation to the total blood volume. This test provides valuable insights into a person’s overall health and can help diagnose various medical conditions. HCT is also known as packed cell volume (PCV) and is typically reported as a percentage.

The importance of hematocrit lies in its ability to:

• Assess oxygen-carrying capacity of blood
• Identify anemia or polycythemia
• Monitor response to treatments
• Evaluate overall health status

Origin and Definition of Hematocrit

The term “hematocrit” originates from the combination of “hemato-” (English) and “krites” (Greek). It specifically refers to the volume of packed red blood cells relative to whole blood. This simple yet informative test has become a standard component of routine blood work and plays a crucial role in diagnosing and monitoring various health conditions.

Methods of Measuring Hematocrit: From Manual to Automated

Over the years, the techniques for measuring hematocrit have evolved, becoming more efficient and accurate. There are three primary methods used to determine HCT:

1. Macro-hematocrit method
2. Micro-hematocrit method
3. Automated analyzer method

The Macro-hematocrit Method

The macro-hematocrit method, also known as the Wintrobe method, is a classic technique that uses a Wintrobe hematocrit tube. This narrow glass tube, measuring 110 mm in length, has graduations from 0 to 100 mm in both ascending and descending order.

How is the macro-hematocrit method performed?

1. Blood is collected in a tube containing anticoagulant (EDTA)
2. The blood is transferred to a Wintrobe tube up to the 100 mm mark
3. The tube is centrifuged at 3000 rpm for 30 minutes
4. After centrifugation, the blood separates into three distinct layers:
   • Bottom layer: Packed red blood cells
   • Middle layer: White blood cells and platelets (buffy coat)
   • Top layer: Plasma
5. The height of the RBC column is measured and reported as the hematocrit percentage

The Micro-hematocrit Method

The micro-hematocrit method is an advancement over the macro-hematocrit technique, offering several advantages:

• Requires less blood (beneficial for pediatric patients or those with hypovolemia)
• Faster testing procedure
• Uses a small capillary tube instead of a Wintrobe tube

How is the micro-hematocrit method performed?

1. Blood is collected in a heparin-filled capillary tube or from an existing anticoagulated sample
2. The tube ends are sealed with clay or heat
3. The tube is centrifuged at 11,000-12,000 rpm for 4-5 minutes
4. Results are read using a scale on a tube holder or microhematocrit card reader

Automated Analyzer Method

Modern laboratories predominantly use automated hematology analyzers to measure hematocrit. These machines employ the Coulter principle to determine HCT along with other complete blood count (CBC) parameters.

How do automated analyzers measure hematocrit?

• Blood passes through a small aperture between two electrodes
• The analyzer detects changes in electrical impedance as cells pass through
• This allows for accurate measurement of RBC size and number
• HCT is calculated based on the average RBC size and count

Normal Hematocrit Ranges and Interpretation

Understanding normal hematocrit ranges is essential for interpreting test results accurately. However, it’s important to note that these ranges can vary slightly depending on factors such as age, sex, and the specific laboratory performing the test.

Typical Hematocrit Ranges for Adults

• Adult males: 40% to 54%
• Adult females: 36% to 48%

Is there a difference in hematocrit levels between males and females? Yes, adult males typically have higher hematocrit levels than adult females. This difference is primarily due to the influence of testosterone on red blood cell production and the impact of menstruation on iron levels in women.

Hematocrit in Special Populations

Certain populations may have different normal ranges for hematocrit:

• Newborns: Higher HCT at birth, gradually decreasing during the neonatal period
• Pregnant women: Lower HCT due to hemodilution
• High-altitude inhabitants: Higher HCT due to persistent hypoxia and increased RBC production

Factors Affecting Hematocrit Levels

Various physiological and pathological conditions can influence hematocrit levels. Understanding these factors is crucial for accurate interpretation of HCT results.

Physiological Factors

• Age: Newborns have higher HCT, which decreases over time
• Sex: Males typically have higher HCT than females
• Pregnancy: Hemodilution leads to lower HCT
• Altitude: Living at high altitudes increases HCT due to hypoxia
• Hydration status: Dehydration can temporarily increase HCT

Pathological Factors

• Anemia: Various types of anemia can cause low HCT
• Polycythemia: Conditions causing increased RBC production lead to high HCT
• Chronic diseases: Certain chronic conditions may affect HCT levels
• Bone marrow disorders: Conditions affecting RBC production can influence HCT

Methodological Variations

Can the method of measurement affect hematocrit results? Yes, different measurement techniques may yield slightly different results. Factors that can influence HCT measurements include:

• Centrifugation speed and duration in manual methods
• Presence of abnormal RBCs (e.g., sickle cells) affecting packing
• Calibration and maintenance of automated analyzers

Clinical Significance of Abnormal Hematocrit Levels

Abnormal hematocrit levels can be indicative of various health conditions. Healthcare providers use HCT results, often in conjunction with other tests, to diagnose and monitor patients.

Low Hematocrit (Anemia)

What conditions are associated with low hematocrit levels? A decreased HCT, typically below the normal range for age and sex, can suggest anemia. Common causes of low hematocrit include:

• Iron deficiency anemia
• Vitamin B12 or folate deficiency
• Chronic diseases (e.g., kidney disease, cancer)
• Blood loss (acute or chronic)
• Hemolytic anemia
• Bone marrow suppression

High Hematocrit (Polycythemia)

What conditions can lead to elevated hematocrit levels? An increased HCT, above the normal range, may indicate polycythemia. Causes of high hematocrit include:

• Polycythemia vera (a myeloproliferative disorder)
• Chronic hypoxia (e.g., COPD, sleep apnea)
• Dehydration
• Smoking
• Certain medications (e.g., anabolic steroids)

When is a Hematocrit Test Ordered?

Healthcare providers may order a hematocrit test in various clinical scenarios. Understanding when this test is typically performed can provide insights into its diagnostic utility.

Routine Health Screenings

Hematocrit is often part of routine blood work, including:

• Annual physical examinations
• Pre-operative assessments
• Pregnancy check-ups

Diagnostic Purposes

When might a doctor specifically order a hematocrit test? HCT may be ordered when a patient presents with symptoms suggestive of anemia or polycythemia, such as:

• Fatigue or weakness
• Shortness of breath
• Pale skin
• Dizziness
• Headaches
• Chest pain

Monitoring Purposes

Hematocrit tests are also useful for monitoring:

• Response to anemia treatments
• Blood loss during or after surgery
• Chronic conditions affecting blood cell production
• Effects of chemotherapy or radiation therapy

Interpreting Hematocrit Results in Clinical Context

While hematocrit provides valuable information, it’s crucial to interpret results in the context of a patient’s overall clinical picture. Healthcare providers consider various factors when analyzing HCT results.

Correlation with Other Blood Tests

How do other blood tests complement hematocrit results? Hematocrit is often interpreted alongside other parameters, such as:

• Hemoglobin levels
• Red blood cell count
• Mean corpuscular volume (MCV)
• White blood cell count
• Platelet count

These additional tests provide a more comprehensive view of a patient’s hematological status and can help pinpoint specific disorders.

Consideration of Patient History and Symptoms

Accurate interpretation of hematocrit results requires consideration of:

• Patient’s age and sex
• Medical history
• Current medications
• Recent blood loss or transfusions
• Presence of chronic diseases
• Lifestyle factors (e.g., smoking, alcohol consumption)

Serial Measurements

In many cases, a single hematocrit measurement may not provide sufficient information. Serial measurements over time can be valuable for:

• Monitoring disease progression
• Assessing treatment effectiveness
• Detecting trends in hematocrit levels

Limitations and Considerations of Hematocrit Testing

While hematocrit is a valuable diagnostic tool, it’s important to be aware of its limitations and potential sources of error.

Pre-analytical Variables

What factors can affect the accuracy of hematocrit results before analysis? Several pre-analytical variables can influence HCT measurements:

• Improper blood collection techniques
• Delayed sample processing
• Incorrect anticoagulant concentration
• Patient’s hydration status at the time of collection

Analytical Considerations

During the analysis process, factors that can affect results include:

• Variations in centrifugation speed and time (for manual methods)
• Presence of abnormally shaped RBCs affecting packing
• Calibration errors in automated analyzers
• Interfering substances in the blood sample

Limitations in Specific Conditions

Are there situations where hematocrit may not accurately reflect red blood cell mass? Yes, in certain conditions, HCT may not provide an accurate representation of RBC mass:

• Severe liver disease (affecting plasma volume)
• Pregnancy (due to plasma volume expansion)
• Recent blood transfusion
• Certain hemoglobinopathies (e.g., sickle cell disease)

In these cases, additional tests or alternative methods may be necessary to assess RBC mass accurately.

Future Directions in Hematocrit Testing and Research

As medical technology advances, the field of hematology continues to evolve, bringing new possibilities for hematocrit testing and interpretation.

Emerging Technologies

What innovations are on the horizon for hematocrit testing? Some promising developments include:

• Point-of-care devices for rapid HCT measurement
• Non-invasive methods for continuous HCT monitoring
• Integration of artificial intelligence for result interpretation
• Advanced microfluidic devices for more accurate measurements

Research Directions

Ongoing research in hematology aims to:

• Improve understanding of factors influencing HCT levels
• Develop more precise reference ranges for diverse populations
• Investigate the role of HCT in predicting cardiovascular risk
• Explore the relationship between HCT and other biomarkers

Clinical Applications

How might advances in hematocrit testing impact clinical practice? Future developments could lead to:

• More personalized reference ranges based on individual factors
• Improved algorithms for interpreting HCT in complex medical conditions
• Enhanced ability to detect early stages of hematological disorders
• Better monitoring of treatment responses in various diseases

As research progresses, the role of hematocrit in diagnosis, treatment, and monitoring of various conditions is likely to expand, potentially leading to improved patient outcomes and more targeted therapeutic approaches.

Hematocrit – StatPearls – NCBI Bookshelf

Himel Mondal; Saran Lotfollahzadeh.

Author Information and Affiliations

Last Update: January 2, 2023.

Introduction

The term “hematocrit (HCT)” originated from English “hemato-“ and Greek “krites.” HCT measures the volume of packed red blood cells (RBC) relative to whole blood. Hence, it is also known and reported as a packed cell volume (PCV). It is a simple test to identify conditions like anemia or polycythemia and also to monitor response to the treatment. A glass tube and a centrifuge machine are sufficient to measure HCT. After centrifugation, the component of blood separates into three distinct parts. From below upwards, the layers are – a layer of red blood cells (RBC), a layer of white blood cells(WBC) and platelets, and a layer of plasma at the top. This method of determining HCT by Wintrobe hematocrit tube is known as the “macro-hematocrit” method.[1] 

A Wintrobe tube is a narrow glass tube measuring 110-mm-long, with graduation from 0 to 100 mm in both ascending and descending order.    This method has been succeeded by the “micro-hematocrit” method which uses a small capillary tube instead of a Wintrobe hematocrit tube. It requires less quantity of blood as well as less time requirement for the testing procedure. It is beneficial for patients from whom blood collection is difficult (e.g., pediatric patients/hypovolemia). However, the principle of the test remains the same as the “macro-hematocrit” method. HCT calculation is by dividing the lengths of the packed RBC layer by the length of total cells and plasma. As it is a ratio, it doesn’t have any unit. Multiplying the ratio by 100 gives the accurate value, which is the accepted reporting style for HCT. A normal adult male shows an HCT of 40% to 54% and a female shows 36% to 48%.[2] Though these two methods are still in use in some settings of primary care and medical teachings, they are widely replaced in the majority of settings by an automated analyzer, where HCT reports get generated along with the complete blood count.   

Specimen Requirements and Procedure

For the macro-hematocrit method, venous blood is taken as a random sample (i.e., no special precautions needed) maintaining proper aseptic precautions. The blood is either collected in a commercially available vacutainer containing ethylenediaminetetraacetic acid (EDTA) or in a vial/test tube with EDTA where vacutainer is not available[3]. For the microhematocrit method, the blood requirement is less, and single finger-prick blood is sufficient. Heparin filled capillary tube may is used to collect blood. However, if there is available blood with anticoagulant for other hematologic tests, a capillary tube without heparin can be used. For measurement of HCT in automated hematologic cell counter, blood with anticoagulant used for CBC is necessary.

Testing Procedures

The macro-hematocrit method uses a Wintrobe hematocrit tube, a centrifuge machine, and a Pasteur pipette. Blood is filled in Wintrobe hematocrit tube up to 100 mm mark by the help of Pasteur pipette. Care is taken not to leave any bubble in the blood column. For this, the tube is filled slowly with the tip of the pipette being always below the highest position of the blood column. Then, the tube gets placed in the centrifuge machine. When testing a single specimen, another blood-filled Wintrobe hematocrit tube is kept on the opposite holder to counterbalance. The spin setting is 3000 rpm for 30 min. After completion of the centrifugation, the tube is taken out, and RBC column height is reported as HCT. During the reporting, special precaution is necessary to omit the buffy coat, which is a combination of WBC and platelets. This layer should not be included in the HCT, as it may lead to false positive results.

For the microhematocrit method, after filling the blood in a capillary tube, the two ends of the tube (commonly 75 mm long, 1 mm diameter) are sealed with clay sealant or heat. Then, it is centrifuged at a rate of 11000 to 12000 rpm for 4 to 5 min. Reading is with the help of the scale on a tube holder or microhematocrit card reader.

The automated analyzer measures the average RBC size and number by the “Coulter principle”[4]. In this method, the size and number of the RBCs is measurable by detecting impedance while the blood passes through a passage between two electrodes.

Interfering Factors

There are several physiological and pathological conditions where the HCT may deviate from its normal range. New-born babies show a high HCT, and it gradually decreases during the neonatal period[5]. Adult male shows higher HCT than an adult female.[6] Pregnant women show lower HCT due to hemodilution. In high altitude, the number of RBC becomes high due to persistent hypoxia; hence, the inhabitant of high altitude shows higher HCT. Methodological variation may provide a minor deviation of HCT tested for the same sample. In the macro-hematocrit method, there is an increased amount of trapped plasma (approximately 2%) in the packed RBC, which may give a higher HCT. This factor becomes minimized in the microhematocrit method, where the amount of trapped plasma is less as the diameter of the capillary tube is less than that of the Wintrobe hematocrit tube. Blood collected from different sources may also show variation. Venous blood shows higher HCT than arterial blood. However, there is no difference in HCT between venous blood and finger prick blood.[7]

Results, Reporting, and Critical Findings

Wintrobe hematocrit tube has graduation 0 to 100 from below upwards. Hence, the highest level of packed RBC is the HCT in percentage. For the microhematocrit method, the reading is from the HCT card or scale. However, for these two methods, even without any graduation or scale, the HCT value can be calculated with a simple scale as we compare the length of the RBC column with the total length of the fluid column. The final report is a percentage. HCT, along with RBC count and hemoglobin (Hb) concentration, is used to report other blood indices manually as follows:

The mean corpuscular volume (MCV) calculation uses HCT and RBC count.

Mean corpuscular hemoglobin concentration (MCHC) is calculated with Hb concentration and HCT.

Clinical Significance

In primary health care settings, especially in resource-limited settings, macro-hematocrit and micro-hematocrit methods are two low-cost and simple tests for determining RBC in blood. Clinically, HCT is used to identify anemia and polycythemia along with other parameters (e.g., RBC count, Hb concentration). In anemia, where there are fewer RBCs in the circulating blood relative to the total volume of the blood, the HCT decreases.[8] In polycythemia, there is a higher number of RBCs in the blood; HCT increases. Smokers and chronic obstructive pulmonary disease (COPD) patients also have high HCT due to chronic hypoxia. The increase in HCT increases the viscosity of the blood, so does the peripheral resistance. Hence, patients with higher HCT may have higher blood pressure.

Quality Control and Lab Safety

Handling of blood should take place with the maintenance of proper aseptic precautions. The collected blood should be tested as soon as possible after collection. Prolonged storage at the room temperature would result in a change in the shape of the RBCs due to metabolism. After about 6 hours, the chances of hemolysis increase, which would give an erroneous result. In the macro-hematocrit method, the filing of the Wintrobe hematocrit tube requires proper care. In the microhematocrit method, the sealing of the capillary tube should be secure to prevent any leakage. The centrifuge machine should not be opened during the test to avoid erroneous results. The chances of error in the result will increase if the centrifugation is interrupted. Immediately after completion of the rotation, the operator should not open the lid should until after the complete stoppage of the rotation. For reuse of the Wintrobe hematocrit tube, proper cleaning is necessary as any foreign particle inside the tube would be counted either in the RBC column or plasma column.

Enhancing Healthcare Team Outcomes

After the introduction of the automated hematology cell counters, the usage of macro-hematocrit and microhematocrit method is less used nowadays. However, in many resource-poor settings, it is still used for the diagnosis of anemia and polycythemia and monitoring response to treatment. In a rural healthcare facility, it is a more accurate method for identifying anemia than the total RBC count, as chances of error in manual RBC count is very high. The micro-hematocrit method is more acceptable as it requires less amount of blood, and the testing time is very less in comparison to the macro-hematocrit method. Due to the requirement of less amount of blood and less time for the test, it may be useful in a mass survey.

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Figure

Wintrobe hematocrit tube containing components of blood after centrifugation. Contributed by Shaikat Mondal, MD

References

1.

Fred HL. Maxwell Myer Wintrobe: new history and a new appreciation. Tex Heart Inst J. 2007;34(3):328-35. [PMC free article: PMC1995040] [PubMed: 17948084]

2.

Billett HH. Hemoglobin and Hematocrit. In: Walker HK, Hall WD, Hurst JW, editors. Clinical Methods: The History, Physical, and Laboratory Examinations. 3rd ed. Butterworths; Boston: 1990. [PubMed: 21250102]

3.

Bamberg R, Gwyn T, Miller J, Thompson M, Transou P. The effects of over-anticoagulated blood on hematocrit values by the microcentrifuge method. Clin Lab Sci. 2008 Summer;21(3):146-50. [PubMed: 18678135]

4.

Peng L, Wang W, Bai L. Performance evaluation of the Z2 coulter counter for WBC and RBC counting. Int J Lab Hematol. 2007 Oct;29(5):361-8. [PubMed: 17824917]

5.

Jopling J, Henry E, Wiedmeier SE, Christensen RD. Reference ranges for hematocrit and blood hemoglobin concentration during the neonatal period: data from a multihospital health care system. Pediatrics. 2009 Feb;123(2):e333-7. [PubMed: 19171584]

6.

Zeng SM, Yankowitz J, Widness JA, Strauss RG. Etiology of differences in hematocrit between males and females: sequence-based polymorphisms in erythropoietin and its receptor. J Gend Specif Med. 2001;4(1):35-40. [PubMed: 11324238]

7.

Yang ZW, Yang SH, Chen L, Qu J, Zhu J, Tang Z. Comparison of blood counts in venous, fingertip and arterial blood and their measurement variation. Clin Lab Haematol. 2001 Jun;23(3):155-9. [PubMed: 11553055]

8.

Malenica M, Prnjavorac B, Bego T, Dujic T, Semiz S, Skrbo S, Gusic A, Hadzic A, Causevic A. Effect of Cigarette Smoking on Haematological Parameters in Healthy Population. Med Arch. 2017 Apr;71(2):132-136. [PMC free article: PMC5511531] [PubMed: 28790546]

Disclosure: Himel Mondal declares no relevant financial relationships with ineligible companies.

Disclosure: Saran Lotfollahzadeh declares no relevant financial relationships with ineligible companies.

Hematocrit (HCT) / Packed Cell Volume (PCV) – Lab Results explained

Hematocrit is the percentage of red cells in your blood.  

Normal levels of hematocrit for men range from 41% to 50%. 

Normal level for women is 36% to 48%.  

What is hematocrit?

The hematocrit level is simply the percentage of red cells in your blood. For example, a level of 38% is considered the minimum needed for donating blood.

Hematocrit is the percentage by volume of red cells in your blood. Blood is made up of red blood cells, white blood cells and platelets, suspended in plasma. Together, those comprise about 45% of the volume of our blood, but the specific percentages of each can vary.

The importance of hematocrit:

Hematocrit is a significant measurement as it can identify whether you have sufficient red blood cells for oxygen transportation and delivery.

Hematocrit is important because red blood cells are essential to your survival. They contain a vital protein component called hemoglobin that binds to oxygen, which fuels all the cells in your body. When red blood cells pass through your lungs, they bind to and transport oxygen to various cells in your body. On their way back to your lungs, they carry carbon dioxide to be exhaled.

Why is the hematocrit test performed?

The hematocrit test checks for anemia, usually along with a hemoglobin test or as part of a complete blood count (CBC). This test can screen for, diagnose, or monitor many conditions and diseases that affect the blood’s proportion made up of red blood cells (RBCs).

What is a normal hematocrit level?

Normal hematocrit levels vary based on age and race, gender, etc.

In adults, normal levels for men range from 41%-50%. For women, the normal range is slightly lower: 36%-44%. A hematocrit level below the normal range, meaning the person has too few red blood cells, is called anemia. A hematocrit level above the normal range, meaning too many red blood cells, may indicate polycythemia or erythrocytosis.

What are symptoms of anemia?

Symptoms of anemia include fatigue, shortness of breath and dizziness.

What are symptoms of polycythemia?

Symptoms of polycythemia include fatigue, itching, headaches, and sweating.

What are symptoms of erythrocytosis?

Symptoms of erythrocytosis includes headaches, dizziness, shortness of breath, and nosebleeds.

What is the difference between a hematocrit and a hemoglobin test?

Hematocrit is the percentage of red blood cells in your blood. Hemoglobin is a part of your red blood cell. Hemoglobin helps your red blood cells carry oxygen throughout your body. Hemoglobin also gives your red blood cells their color. A hemoglobin test measures the amount of hemoglobin in your red blood cells.

What is the origin of the word “hematocrit”?

The term “hematocrit” (british english: haematocrit) originated from the ancient greek word haimas (= blood) and krites (= judge) and hematocrit means “to separate blood”.

What does it mean if your Hematocrit (HCT) / Packed Cell Volume (PCV) result is too low?

Look for Possible Connected Biomarkers:  Low hematocrit + low RBC count + low hemoglobin indicates anemia. 

Anemia is usually defined as a decrease in red blood cells (RBCs) or hemoglobin in the blood. It can also be defined as a lowered ability of the blood to carry oxygen. 

Some causes of low hematocrit include:

– Nutritional deficiencies such as iron, folate, or B12 deficiency.

– Chronic inflammatory diseases or conditions.

– Excessive loss of blood from, for example, severe trauma, or chronic bleeding from sites such as the digestive tract (e.g., ulcers, polyps, colon cancer), the bladder or uterus (in women, heavy menstrual bleeding, for example).

– Damage to the bone marrow from, for example, a toxin, radiation or chemotherapy, infection, or drugs.

– Bone marrow disorders such as aplastic anemia, myelodysplastic syndrome, or cancers such as leukemia, lymphoma, multiple myeloma, or other cancers spread to the marrow.

-Kidney failure—severe and chronic kidney diseases lead to decreased erythropoietin production, a hormone produced by the kidneys that stimulate RBC production by the bone marrow.

– Decreased production of hemoglobin (e.g., thalassemia)

– Excessive destruction of red blood cells. That is caused by autoimmunity or defects in the red blood cell itself. For example, hemolytic anemia.

What does it mean if your Hematocrit (HCT) / Packed Cell Volume (PCV) result is too high?

Look for Possible Connected Biomarkers: A high hematocrit alongside with a high RBC count and high hemoglobin indicates polycythemia. 

Polycythemia (also known as polycythaemia or polyglobulia) is a disease state in which the proportion of blood volume occupied by red blood cells increases. 

Some causes of a high hematocrit include:

– Dehydration—this is the most common cause of a high hematocrit. As the volume of fluid in the blood drops, the RBCs per volume of fluid artificially rises; with adequate fluid intake, the hematocrit returns to normal.

– Living at high altitudes (a compensation for decreased oxygen in the air)

– Smoking

– Lung (pulmonary) disease—if someone cannot breathe in and absorb sufficient oxygen, the body tries to compensate by producing more red blood cells.

– Congenital heart disease—in some forms, there is an abnormal connection between the two sides of the heart, leading to reduced oxygen levels in the blood. The body tries to compensate by producing more red blood cells.

– Genetic causes (altered oxygen sensing, abnormality in hemoglobin oxygen release)

– Kidney tumor that produces excess erythropoietin

– Polycythemia vera—a rare disease in which the body produces excess RBCs inappropriately.

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BIOCHEMICAL BLOOD TESTS

B/C GENERAL PROFILE + UAC standard ( * discounted price)	3200 rub. *
GENERAL PROFILE – 20 indicators: (ALT, AST, creatinine, urea, alkaline phosphatase, total bilirubin, direct bilirubin, glucose, cholesterol, phosphorus, calcium, total protein, albumin, globulin, creatine kinase, triglycerides, GGTP+ K, Na, Cl)	2400 rub.
PREOPERATIVE PROFILE – 9 indicators + OKA (ALT, AST, creatinine, urea, albumin, alkaline phosphatase, K,Na,Cl)	2300 rub.
PREOPERATIVE PROFILE (extended) – 9 indicators + OKA + Coagulogram (Pulkovskaya 11)	3100 rub.
RENAL PROFILE – 7 indicators: (creatinine, albumin, urea, phosphorus, K, Na, Cl)	$1100
ICU profile (therapeutic) – 11 indicators: (ALT, alkaline phosphatase, GGT, albumin, total protein, total bilirubin, creatinine, Urea, K, Na, Cl)	1580 r.
ELECTROLYTE PROFILE (Potassium, Sodium, Chlorides) – 3 indicators (Potassium, Sodium, Chlorides)	650 rubles
Profile Senior cat (ALT, alkaline phosphatase, albumin, total protein, total bilirubin, creatine kinase, creatinine, urea, phosphorus, glucose) OAC (standard) + T4	3500 rub.
Feline specific pancreatic lipase: (immunofluorescent method) Pulkovsky 11, Chudnovsky 10	1800 rubles
Canine specific pancreatic lipase: (immunofluorescent method) Pulkovsky 11, Chudnovsky 10	1800 rubles
BIOCHEMICAL BLOOD STUDIES (selected indicators) – 1 indicator: ALT, AST, Creatinine, Urea, Alkaline Phosphatase, Total Bilirubin, Direct Bilirubin, Indirect Bilirubin, Glucose, Cholesterol, Calcium, Phosphorus, Total Protein, Albumin, Globulin, Creatine Kinase (Total), Triglycerides, GGTP, Cholesterol.	350 r.
Blood compatibility test	550 r.
Blood Matching Test (for next donor)	300 rubles
Determination of the blood group of cats and dogs – Pulkovo 11, Chudnovsky 10 Check availability of tests with laboratory	$2100

CLINICAL BLOOD TEST

Base: Hemoglobin, hematocrit, blood cell count, whole blood hemoglobin concentration, mean erythrocyte volume, mean erythrocyte hemoglobin content and mean concentration, erythrocyte distribution width, mean platelet volume, platelet volume distribution width, thrombocrit	740 r.
STANDARD (UAC): Basic + extended leukogram, leukogram count, manual formulas with absolute values ​​	$1150
Leukocyte formula	460 r.
Reticulocytes (% and absolute count)	550 r.
Erythrocytes (total)	300 rubles
Platelets (blood smear count)	300 rubles
Leukocytes (total cells)	300 rubles
Hematocrit	300 rubles
Peripheral blood test for babesiosis, microfilariae	550 r.

URINE CLINICAL TEST

STANDARD Urine physical properties, chemical properties (qualitative test strip test + quantitative analyzer test) + urine sediment microscopy	800 rub.
Protein-creatinine index	550 r.

DETERMINATION OF HORMONES – Pulkovsky 11, Chudnovsky 10

Determination of total thyroxine (T4) (immunofluorescent method)	1500 rub.
Progesterone determination (immunofluorescent method)	1500 rub.
Cortisol determination (immunofluorescent method)	1500 rub.
ACTH stimulation test	2500 rub.
Small dexamethasone test	3500 rub.
Cat and dog troponin I	1500 rub.
TSH (Thyrotropic hormone)	1500 rub.

Blood coagulation – Pulkovo 11

RAPID TESTS – Chudnovsky 10, Pulkovo 11, Industrial 17 *

EXPRESS ANALYSIS (Abaxis) – 6 Bolshevikov Ave.

, 17 Shlisselburgsky Ave.

EXPRESS ANALYSIS – Khudozhnikov 26, Planernaya 47

Base: Hemoglobin, hematocrit, blood cell count, whole blood hemoglobin concentration, mean erythrocyte volume, mean erythrocyte hemoglobin content and mean concentration, erythrocyte distribution width, mean platelet volume, platelet volume distribution width, thrombocrit

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