Ms and pneumonia. End Stage MS: Understanding Symptoms, Complications, and Advance Care Planning
What are the symptoms of end stage MS. How can complications arise in advanced multiple sclerosis. Why is advance care planning important for MS patients. What options are available for end-of-life care in multiple sclerosis.
Recognizing End Stage MS: Key Symptoms and Vulnerabilities
End stage multiple sclerosis (MS) is a critical phase of the disease where individuals may develop severe disabilities that make them more susceptible to life-threatening complications. While it’s uncommon for MS to directly cause death, the progression of symptoms can lead to increased vulnerability. Understanding these symptoms is crucial for patients, caregivers, and healthcare providers.
Common Symptoms of End Stage MS
- Severe bladder and bowel problems
- Increased susceptibility to respiratory infections
- Swallowing difficulties
- Feeding challenges
- Respiratory muscle weakness
- Speech impairment or loss
- Pressure sores due to immobility
- Risk of blood clots
- Elevated pain levels
- Mental confusion or disorientation
These symptoms can significantly impact an individual’s quality of life and may require frequent hospitalizations. How do these symptoms differ from those experienced in advanced MS? The main distinction lies in the response to treatment. In end stage MS, patients may no longer show improvement with medical interventions, shifting the focus to comfort and dignity in their final days.
Complications and Life-Threatening Conditions in End Stage MS
As MS progresses to its final stages, patients become increasingly vulnerable to severe complications. These can include:
Sepsis: A Critical Concern
What is sepsis, and why is it a significant risk for MS patients? Sepsis is a potentially life-threatening condition where the body’s immune response to infection becomes dysregulated, attacking its own tissues and organs. For individuals with end stage MS, recurrent infections and compromised immune function can elevate the risk of developing sepsis.
Pneumonia and Respiratory Complications
Why are MS patients particularly susceptible to pneumonia? Weakened respiratory muscles, difficulty swallowing, and reduced mobility can all contribute to an increased risk of aspiration pneumonia and other respiratory infections. These conditions can be particularly dangerous for individuals with advanced MS.
Identifying the Transition to End Stage MS
Distinguishing between advanced MS and end stage MS can be challenging, as many symptoms overlap. However, certain indicators may suggest a transition to the end stage:
- Rapid physical decline
- Significant weight loss
- Multiple comorbidities
- Need for 24-hour care
- Lack of response to traditional treatments
How can healthcare providers and caregivers recognize this transition? Close monitoring of symptom progression, frequency of hospitalizations, and overall health status can help identify when a patient may be entering the end stage of MS.
The Importance of Advance Care Planning in MS
Advance care planning (ACP) is a crucial process for individuals with MS, particularly as they approach the later stages of the disease. Why is ACP so important for MS patients?
Benefits of Advance Care Planning
- Ensures patient wishes are respected
- Reduces stress and uncertainty for family members
- Improves communication between patients, families, and healthcare providers
- Allows for more personalized end-of-life care
- Increases the likelihood of receiving care in preferred settings
When should MS patients consider creating an advance care plan? While it’s relevant at all stages of MS, it becomes particularly crucial as the disease progresses. Starting these conversations early can help ensure that patients’ voices are heard, even if they become unable to communicate their wishes later on.
Key Components of an Advance Care Plan for MS Patients
An effective advance care plan for individuals with MS should address several important aspects of end-of-life care. What should be included in an MS patient’s advance care plan?
Essential Elements of an MS Advance Care Plan
- Treatment preferences and limitations
- Designation of healthcare proxy or decision-maker
- Preferred care settings (hospital, hospice, or home)
- Pain management and comfort care preferences
- Spiritual or religious considerations
- Funeral and memorial wishes
How can patients ensure their advance care plan is comprehensive and legally valid? Consulting with healthcare providers, legal professionals, and family members can help create a thorough and enforceable plan that reflects the patient’s wishes.
Palliative Care and End-of-Life Services for MS Patients
As MS progresses to its final stages, palliative care becomes an essential component of patient management. What services are available to support MS patients nearing the end of life?
Palliative Care Options for End Stage MS
- Symptom management and pain control
- Emotional and psychological support
- Spiritual care
- Family support and counseling
- Assistance with practical matters (e.g., legal and financial issues)
How does palliative care differ from curative treatment? While curative treatment aims to improve the patient’s medical condition, palliative care focuses on enhancing quality of life and providing comfort in the final stages of illness.
Navigating Difficult Conversations: Discussing End-of-Life Care
Addressing end-of-life care can be emotionally challenging for patients, families, and healthcare providers. How can these conversations be approached sensitively and effectively?
Strategies for Discussing End-of-Life Care
- Choose an appropriate time and setting
- Use clear, compassionate language
- Encourage open expression of emotions
- Provide information in manageable portions
- Respect cultural and personal beliefs
- Offer ongoing support and follow-up
Why is it important to have these conversations early? Early discussions about end-of-life care can reduce anxiety, improve decision-making, and ensure that patients’ wishes are respected throughout their journey with MS.
Resources and Support for MS Patients and Caregivers
Navigating end stage MS can be overwhelming for both patients and their caregivers. What resources are available to provide support and guidance during this challenging time?
Valuable Resources for End Stage MS
- MS Trust’s “Thinking Ahead” guide
- Dying Matters website
- Local MS support groups
- Hospice and palliative care organizations
- Mental health professionals specializing in chronic illness
How can these resources benefit MS patients and their families? By providing information, emotional support, and practical guidance, these resources can help individuals navigate the complexities of end stage MS with greater confidence and peace of mind.
As we continue to explore the challenges and considerations surrounding end stage MS, it’s crucial to remember that each patient’s journey is unique. By understanding the symptoms, complications, and available support systems, patients and caregivers can make informed decisions that align with their values and wishes. The focus on quality of life, dignity, and personalized care remains paramount throughout the progression of MS, ensuring that individuals receive the support they need during this challenging phase of their illness.
End stage MS | MS Trust
It is rare for someone to die directly from MS itself. However, it is possible to develop disabilities as a result of your MS that make you more vulnerable to serious complications which can lead to death. If you reach the stage where your disabilities result in severe difficulties, which may not respond to treatment and so lead to life-threatening complications, you’re considered to have end stage MS.
Some of the symptoms that can make an individual vulnerable to reaching end stage MS are:
- very severe bladder and/or bowel problems – which lead to recurrent infections or regular hospitalisation
- increased susceptibility to respiratory infections – which can lead to repeated bouts of pneumonia
- swallowing problems – which can cause choking or aspiration pneumonia (where food or fluid enters the lungs)
- feeding difficulties – which may require a feeding tube or result in severe weight loss
- difficulties breathing due to weakening of the respiratory muscles
- difficulty with speech or losing the ability to speak
- pressure sores due to immobility – which are at risk of becoming infected
- developing blood clots due to lack of mobility
- increased levels of pain
- mental confusion or disorientation.
All of the above can lead to you needing an increasing number of emergency admissions to hospital. If you experience an infection it can put you at risk of developing sepsis. Sepsis is a potentially life-threatening condition where the body’s immune system overreacts to an infection and begins to attack it’s own organs and tissues. If not treated quickly it can lead to organ failure and death. Sepsis is sometimes referred to as septicaemia or blood poisoning.
Some other signs which might indicate end stage MS include physical decline, weight loss and multiple health conditions (comorbidities). If you have end stage MS you will often require 24 hour care.
Many of these symptoms are similar to those seen in someone with advanced MS, so it can be difficult to determine whether you’ve entered the end stage of MS. However, whilst treatment for advanced MS aims to help you improve medically, in end stage MS you may no longer respond to treatment and so the focus shifts to helping you live to the end of your life with respect, dignity and as comfortably as possible. When you reach the end stage of MS it might be appropriate for you to access end of life palliative care services.
If you don’t already have an advance care plan in place, this is something you might like to consider discussing with a health professional involved in your care. Advance care planning (ACP) is a process through which you can think about how you would like to be cared for in the future, including at the end of life.
Advance care planning is relevant at all stages of MS, as it gives you a chance to talk through what might happen and what your treatment options might be. It’s also a way of making your wishes known if you’re ever in the position where you’re unable to decide for yourself and you need someone else to do it on your behalf. However, it’s especially pertinent to have a plan in place as you near the end of life so you can make your wishes known to your family and friends, and the health professionals involved in your care.
Advance care planning can help you prioritise what’s important to you and make choices that help you maintain control over your life right to the end. It’s a way to get your voice heard if you feel very strongly about something, such as a treatment you know you wouldn’t want to have. You can identify who you want to be consulted about your care and to be there to support you. You could also specify where you’d prefer to be cared for, this might be in hospital, a hospice or at home, and where you’d like to die – this might be the same or different places. You can even include any funeral plans.
Remember, you’ll still be given the best possible care, support and any appropriate medication to control symptoms to make you as comfortable as possible.
If advance care planning is something you’d like to consider but you’re not sure where to start, the MS Trust has a guide to advance care planning called Thinking Ahead where you can find more information. There is also the Dying Matters website which aims to encourage people to talk about dying, death and bereavement with their families and friends and to help people discuss their wishes towards the end of their lives.
These conversations are never easy for anyone and it can lead to some powerful emotions such as sadness and grief, especially towards the end of life. However, it’s helpful to think about the choices you have whilst you are still able to. Having an advance care plan in place means that it’s more likely you’ll receive the care you want, in the place of your choice, for example research has shown that people with MS who have an advance care plan are less likely to die in hospital. Planning ahead can also bring with it peace of mind. You know that your loved ones and the health professionals involved with your care are aware of your wishes and will do their utmost to follow them.
Breathing Problems and MS | National Multiple Sclerosis Society
- Fatigue
- MS Hug (Dysesthesia)
- Walking (Gait) Difficulties
- Numbness or Tingling
- Spasticity
- Weakness
- Vision Problems
- Vertigo and Dizziness
- Bladder Problems
- Sexual Problems
- Bowel Problems
- Cognitive Changes
- Pain & Itching
- Emotional Changes
- Speech Problems
- Loss of Taste
- Swallowing Problems
- Tremor
- Breathing Problems
- Seizures
- Depression
- Hearing Loss
- Smaller Text
- Larger Text
In this article
Respiration problems from multiple sclerosis
Note: If breathing problems occur suddenly, see a healthcare provider immediately or go to the emergency room. Signs of respiratory distress requiring immediate attention include increased breathing rate, grunting when exhaling, nose flaring, sweating, wheezing, chest retractions (chest appears to sink in with each breath), leaning forward while sitting to help take deeper breaths, or bluish color around the mouth, on the inside of the lips, or on the fingernails.
Respiration — or breathing — is primarily under the control of the autonomic or “automatic” nervous system. This is the part of the central nervous system that controls vital functions such as heartbeat and respiration without conscious thought. It is unusual for multiple sclerosis to affect the autonomic nervous system. For this reason, it’s uncommon for breathing problems to occur in MS as a direct result of loss of autonomic control.
In MS, the most common cause of respiratory problems is loss of muscle strength and endurance. Just as a person can experience muscle weakness in the arms or legs, weakness can occur in the muscles of the chest and abdomen that are involved in breathing. And like weakness in other parts of the body, weakness of the muscles related to proper breathing and lung function can begin to occur early in the disease course and gradually worsen over time. People with weakened breathing muscles have to work harder to inhale and exhale. This extra effort can be quite tiring, particularly for people who already experience a significant amount of MS fatigue.
Respiratory problems can also interfere with speech. It can be much more difficult and tiring for people to carry on a conversation or speak loudly enough to be heard. A speech/language pathologist can recommend exercises and tools to enhance speech and communication. Learn more about MS-related speech symptoms.
Does MS cause shortness of breath?
No. Shortness of breath is not usually a direct symptom of MS. If you are experiencing shortness of breath, go to the emergency room.
Breathing problems that occur with MS present differently than what you might call shortness of breath. People with MS experience a tightening of the chest called an MS hug (dysesthesia). Read more about the symptoms of an MS hug and how to manage it in Momentum Magazine.
Other causes of breathing problems
Some medications, such as anti-anxiety medication (benzodiazepines such as Xanax and Ativan), muscle relaxants and opioid analgesics, can depress breathing. The use of these medications should be carefully monitored in anyone with a history of respiratory distress or swallowing problems. Typically, these medications should not be used in combination with one another as this greatly increases the risk of respiratory depression potentially leading to serious harm and even death.
Breathing problems can also occur as a result of aspiration pneumonia. This results from the inability to clear secretions from the nose and throat or from swallowing difficulties that result in inhalation of food particles into the lungs. If you begin to experience swallowing problems and/or choking while eating or drinking, get evaluated by a speech/language pathologist. In addition to exercises and other forms of therapy to improve your ability to swallow, the therapist may also recommend dietary changes and postural changes while eating to minimize these issues. Sometimes a feeding tube is necessary to avoid continued risk of aspiration pneumonia.
Treatment for MS breathing problems
Evaluations of breathing problems are most often done by a healthcare provider with special training in this area. If your respiratory function becomes affected, a therapy program including breathing exercises may be recommended to strengthen the muscles that support your lungs and breathing.
Everyone living with MS can benefit from adding breathing exercises into their regular wellness routine. Once you have consulted with your healthcare provider on what exercise program might be best for you, consider viewing our Breathing Tips for MS video for guided breathing exercises.
Breathing assistance devices
Some studies have determined that respiratory muscle training may help strengthen breathing muscles, improve respiratory function, clear airways, decrease fatigue and increase quality of life. This muscle training may include use of a device, such as a positive expiratory pressure (PEP) device or an acapella device (sometimes called a green pickle), to assist you in clearing your lungs and keeping airways open. Discuss the use of a device with your doctor and your rehabilitation care team.
- Smaller Text
- Larger Text
Discover More
Here are a few related topics that may interest you
Urinary Dysfunction and MS (.pdf)
Download Brochure
So You Have Progressive MS (.pdf)
Download Brochure
Respiratory Weakness and MS (video)
Watch Video
How I Cope with Progressive MS
Download Brochure
Caring for Loved Ones with Advanced MS – A Guide for Families (.
pdf)
Download Brochure
Joint Conference on Primary-Progressive MS Focuses on Unmet Needs (.pdf)
Download Document
Less Common Symptoms (video)
Watch Video
Respiratory Weakness and MS (video)
Watch Video
So You Have Progressive MS (.pdf)
Download Brochure
Hiring Help at Home (.pdf)
Download Brochure
At Home with MS — Adapting Your Environment (.pdf)
Download Brochure
A Guide for Support Partners (.pdf)
Download Brochure
Seeking Services: Questions to Ask
Learn More
Osteoporosis
Learn More
Pressure Sores
Learn More
Advanced Care Needs
Learn More
The National MS Society is Here to Help
Need More Information?
We Are Here
Our MS Navigators help identify solutions and provide access to the resources you are looking for. Call 1-800-344-4867 or contact us online.
Contact an MS Navigator
Contact an MS Navigator
Newly Diagnosed
If you or someone close to you has recently been diagnosed, access our MS information and resources.
Start Here
Start Here
Community-acquired pneumonia (not caused by Covid-19) – Diagnostic approach
During a pandemic, all patients with cough, fever or other suspicious symptoms should be considered as having COVID-19 until proven otherwise.
The patient’s history and physical examination are important components of the diagnosis and may indicate symptoms that are consistent with CAP, immune dysfunction, and/or potential exposure to specific pathogens. However, a definitive diagnosis of pneumonia requires confirmation of the presence of a new infiltrate on a chest x-ray.
History
The purpose of the history is to identify symptoms consistent with CAP, immune dysfunction, and possible exposure to specific pathogens.
Risk factors include age over 65 years, institutionalization, COPD, HIV infection, exposure to cigarette smoke, alcohol abuse, poor oral hygiene, contact with children, and use of certain drugs (eg, acid-lowering drugs, inhaled corticosteroids, antipsychotics, antidiabetic drugs, opioids). Diabetes mellitus and chronic liver or kidney disease are also associated with PFS.
Typically present with clinical signs and symptoms of infection (fever or chills and leukocytosis) and respiratory symptoms (including cough, often with increased sputum production, dyspnea, pleural pain, and hemoptysis). There may be complaints of non-specific symptoms such as myalgia and arthralgia. In elderly, chronically ill, and immunocompromised patients, the signs and symptoms of a lung infection may be less severe, and pneumonia may not be recognized due to the presence of non-respiratory symptoms.
Some causes of pneumonia (eg, legionellosis) may have a specific history. Legionellosis may present with headache, confusion, digestive disturbances such as diarrhea, and clinical manifestations of hyponatremia.
Mycoplasma pneumoniae infection is most common in younger patients and patients treated with antibiotics prior to current presentation for pneumonia. It can present with extrapulmonary manifestations such as myringitis, encephalitis, uveitis, iritis, and myocarditis.[20]Torres A, Barberán J, Falguera M, et al. Multidisciplinary guidelines for the management of community-acquired pneumonia [in Spanish]. Med Clin (Barc). 2013 Mar 2;140(5):223.e1-223.e19.
http://www.ncbi.nlm.nih.gov/pubmed/23276610?tool=bestpractice.com
CVD is more severe in men than in women, resulting in higher mortality among men in general and especially among older men.[71]Barbagelata E, Cillóniz C, Dominedò C, et al. Gender differences in community-acquired pneumonia. Minerva Med. 2020 Apr;111(2):153-65.
http://www.ncbi.nlm.nih.gov/pubmed/32166931?tool=bestpractice.com
Physical examination
Perform a physical examination. The patient may have fever, tachycardia, and dyspnea at rest. Auscultation of the chest may reveal moist rales, rales or bronchial breathing, dullness of percussion sound or weakening of voice trembling may be determined.
Imaging methods
Chest x-rays should be ordered as soon as possible in all patients hospitalized with suspected NGP to confirm or rule out the diagnosis. In general, a chest x-ray is not mandatory for outpatients with suspected NGP. Direct and oblique lateral projections increase the likelihood of diagnosing pneumonia and are useful in establishing the severity of the disease.
The benefit of chest x-ray in the diagnosis of CAP has been questioned by studies using lung ultrasound and computed tomography (CT) of the chest. Lung ultrasonography should be considered if the chest x-ray is negative and the patient is elderly and frail, or clinical suspicion is uncertain.[72] Niederman MS. Imaging for the management of community-acquired pneumonia: what to do if the chest radiograph is clear. Chest. 2018 Mar;153(3):583-5.
http://www.ncbi.nlm.nih.gov/pubmed/29519296?tool=bestpractice.com
The American College of Physicians recommends bedside ultrasound in patients with acute dyspnea in case of diagnostic uncertainty.[73]Qaseem A, Etxeandia-Ikobaltzeta I, Mustafa RA, et al. Appropriate use of point-of-careultrasonography in patients with acute dyspnea in emergency department or inpatientsettings: a clinical guideline from the American College of Physicians. Ann Intern Med. 2021Jul;174(7):985-93.
https://www.doi.org/10.7326/M20-7844
http://www.ncbi.nlm.nih.gov/pubmed/33
2?tool=bestpractice.com
Chest CT scan should be considered in patients with an indeterminate diagnosis after chest x-ray and ultrasonography.[72]Niederman MS. Imaging for the management of community-acquired pneumonia: what to do if the chest radiograph is clear. Chest. 2018 Mar;153(3):583-5.
http://www.ncbi.nlm.nih.gov/pubmed/29519296?tool=bestpractice.com
Ultrasound of the lungs is a simple and affordable method for diagnosing CAP. It does not involve radiation and its use is especially valuable if chest x-ray is not available. Diagnosis of CAP by bedside ultrasound of the lungs mainly depends on the detection of induration. However, densification is not always seen in CAP, as the pneumonia may be interstitial or present as diffuse lung infiltration.[74] Reissig A, Gramegna A, Aliberti S. pneumonia. Eur J Intern Med. 2012 Jul;23(5):391-7.
http://www.ncbi.nlm.nih.gov/pubmed/22726366?tool=bestpractice.com
Evidence demonstrates that lung ultrasonography can accurately diagnose pneumonia in adults, including in the emergency department.[75]Llamas-Álvarez AM, Tenza-Lozano EM, Latour-Pérez J. the diagnosis of pneumonia in adults: systematic review and meta-analysis. Chest. 2017 Feb;151(2):374-82.
http://www.ncbi.nlm.nih.gov/pubmed/27818332?tool=bestpractice.com
[76] Orso D, Guglielmo N, Copetti R. Lung ultrasound in diagnosing pneumonia in the emergency department: a systematic review and meta-analysis. Eur J Emerg Med. 2018 Oct;25(5):312-21.
http://www.ncbi.nlm.nih.gov/pubmed/29189351?tool=bestpractice.com
[77] Gartlehner G, Wagner G, Affengruber L, et al. Point-of-care ultrasonography in patients with acute dyspnea: an evidence report for a clinical practice guideline by the American College of Physicians. Ann Intern Med. 2021 Jul;174(7):967-76.
https://www.doi.org/10.7326/M20-5504
http://www.ncbi.nlm.nih.gov/pubmed/33
8?tool=bestpractice.com
Chest CT may improve the diagnosis of NGP because chest x-ray can lead to a misdiagnosis. Chest CT provides detailed information about the condition of the parenchyma and lungs, as well as the mediastinum. However, major limitations include exposure to radiation, high cost, and the inability to perform bedside examinations. One study showed that in patients presenting to emergency departments with suspected NGP, early CT scan results, if CT is used as an adjunct to chest x-ray, significantly affect both diagnosis and clinical management.[ 78] Claessens YE, Debray MP, Tubach F, et al. Early chest computed tomography scan to assist diagnosis and guide treatment decision for suspected community-acquired pneumonia. Am J Respir Crit Care Med. 2015 Oct 15;192(8):974-82.
http://www.ncbi.nlm.nih.gov/pubmed/26168322?tool=bestpractice.com
These alternative imaging modalities may prove useful in diagnosing CAP as the availability of CT in emergency and emergency departments increases in parallel with the ability to perform scans as quickly as chest x-rays with equivalent radiation dose.[30] Wunderink RG, Waterer G. Advances in the causes and management of community acquired pneumonia in adults. BMJ. 2017 Jul 10;358:j2471.
http://www.ncbi.nlm.nih.gov/pubmed/28694251?tool=bestpractice.com
Microbiology
Initial antibiotic treatment is empiric in most cases. Determination of microbial etiology reduces the wastage of broad-spectrum antibiotics and helps ensure appropriate antibiotic therapy, which is an important factor in reducing mortality. It also identifies resistant pathogens and pathogens that may have public health implications (eg Legionella).
Sputum and blood culture:
Prior to treatment, Gram stain and culture of lower respiratory secretions and blood culture should be performed in the following patients in a hospital setting:[19]Metlay JP, Waterer GW, Long AC, et al. Diagnosis and treatment of adults with community-acquired pneumonia. An official clinical practice guideline of the American Thoracic Society and Infectious Diseases Society of America. Am J Respir Crit Care Med. 2019Oct 1;200(7):e45-e67.
https://www.atsjournals.org/doi/full/10.1164/rccm.201908-1581SThttp://www.ncbi.nlm.nih.gov/pubmed/31573350?tool=bestpractice.com
Patients with severe CAP as defined by the American Thoracic Society (ATS) or the Infectious Diseases Society of America (IDSA) criteria for severe CAP (see Diagnostic Criteria section), especially if these patients are intubated
Patients receiving empiric treatment for methicillin-resistant Staphylococcus aureus (MRSA) or Pseudomonas aeruginosa
Patients previously infected with MRSA or P. aeruginosa, especially those who have had respiratory tract infections
Patients with hospitalization and parenteral antibiotic therapy within the last 90 days.
These studies are generally not recommended for other inpatients, nor are they recommended for outpatient use. Consideration should be given to local protocols for rational antimicrobial therapy, local etiological factors, and the clinical picture when deciding whether to conduct these studies.[19]Metlay JP, Waterer GW, Long AC, et al. Diagnosis and treatment of adults with community-acquired pneumonia. An official clinical practice guideline of the American Thoracic Society and Infectious Diseases Society of America. Am J Respir Crit Care Med. 2019 Oct 1;200(7):e45-e67.
https://www.atsjournals.org/doi/full/10.1164/rccm.201908-1581SThttp://www.ncbi.nlm.nih.gov/pubmed/31573350?tool=bestpractice.com
Sputum Gram stain is a sensitive and highly specific method for the detection of pathogens in patients with NGP. In a meta-analysis, this study was found to be highly specific for Streptococcus pneumoniae, Haemophilus influenzae, S. aureus, and Gram-negative bacilli. However, the false negative rate ranged from 22% (for H. influenzae) to 44% (for S. pneumoniae), indicating that a negative result is not definitive confirmation of the absence of causative pathogens, and antibiotic therapy should not necessarily be stopped. based on a negative sputum Gram stain.[79]Del Rio-Pertuz G, Gutierrez JF, Triana AJ, et al. Usefulness of sputum gram stain for etiologic diagnosis in community-acquired pneumonia: a systematic review and meta-analysis. BMC Infect Dis. 2019 May 10;19(1):403.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6509769http://www.ncbi.nlm.nih.gov/pubmed/31077143?tool=bestpractice.com
Urinalysis for pneumococcal and Legionella antigens:
Patients with severe LPH should have a urine test for pneumococcal antigen. Urinalysis for Legionella antigen should be performed in patients with epidemiological factors (eg, association with a Legionella outbreak or recent travel) or in patients with severe NGP. In patients with severe NGP, lower respiratory secretions should be sampled simultaneously for bacteriological examination for Legionella or nucleic acid amplification. In large observational studies, urinalysis for antigens has been associated with a reduction in mortality and should be considered in settings where Legionella infections are on the rise, especially in critically ill patients.[19]]Metlay JP, Waterer GW, Long AC, et al. Diagnosis and treatment of adults with community-acquired pneumonia. An official clinical practice guideline of the American Thoracic Society and Infectious Diseases Society of America. Am J Respir Crit Care Med. 2019 Oct 1;200(7):e45-e67.
https://www.atsjournals.org/doi/full/10.1164/rccm.201908-1581SThttp://www.ncbi.nlm.nih.gov/pubmed/31573350?tool=bestpractice.com
Influenza testing:
Rapid molecular testing (as opposed to antigen-based tests) for influenza virus testing should be performed while influenza viruses are circulating in the community. Studies during periods of low influenza activity are also being considered.[19] Metlay JP, Waterer GW, Long AC, et al. Diagnosis and treatment of adults with community-acquired pneumonia. An official clinical practice guideline of the American Thoracic Society and Infectious Diseases Society of America. Am J Respir Crit Care Med. 2019Oct 1;200(7):e45-e67.
https://www.atsjournals.org/doi/full/10.1164/rccm.201908-1581SThttp://www.ncbi.nlm.nih.gov/pubmed/31573350?tool=bestpractice.com
Laboratory tests
In hospitalized patients, complete blood count, blood glucose, serum electrolytes, urea, and liver function tests should be ordered. An elevated white blood cell count indicates infection Chronic kidney and liver disease are risk factors for death and complications in patients hospitalized with CAP.
Arterial blood gases should be measured in critically ill or hospitalized patients. Oximetry is non-invasive and can be used continuously.
Biomarker tests such as C-reactive protein (CRP) and procalcitonin should be considered. These biomarkers are useful in predicting a deficient host response. High levels of CRP or procalcitonin at first visit are risk factors for poor host response,[80] Menéndez R, Cavalcanti M, Reyes S, et al. Markers of treatment failure in hospitalized community acquired pneumonia. Thorax. 2008 May;63(5):447-52.
http://thorax.bmj.com/content/63/5/447.long
http://www.ncbi.nlm.nih.gov/pubmed/18245147?tool=bestpractice.com
while low levels are protective. In patients with suspected pneumonia, a CRP level >100 mg/l suggests the possibility of pneumonia.[81] Woodhead M. New guidelines for the management of adult lower respiratory tract infections. Eur Respir J. 2011 Dec;38(6):1250-1.
http://erj.ersjournals.com/content/38/6/1250.long
http://www.ncbi.nlm.nih.gov/pubmed/22130759?tool=bestpractice.com
Increased PCT values correlate with bacterial pneumonia, while low values correlate with viral and SARS. PCT is especially elevated in cases of pneumococcal pneumonia.[82] Menéndez R, Sahuquillo-Arce JM, Reyes S, et al. Cytokine activation patterns and biomarkers are influenced by microorganisms in community-acquired pneumonia. Chest. 2012 Jun;141(6):1537-45.
http://www.ncbi.nlm.nih.gov/pubmed/22194589?tool=bestpractice.com
[83] Ugajin M, Yamaki K, Hirasawa N, et al. Predictive values of semi-quantitative procalcitonin test and common biomarkers for the clinical outcomes of community-acquired pneumonia. Respiratory care. 2014 Apr;59(4):564-73.
http://rc.rcjournal.com/content/59/4/564.full
http://www.ncbi.nlm.nih.gov/pubmed/24170911?tool=bestpractice.com
Initial empiric antibiotic therapy should be initiated in patients with clinical suspicion and radiological confirmation of CAP, regardless of initial procalcitonin levels.[19] Metlay JP, Waterer GW, Long AC, et al. Diagnosis and treatment of adults with community-acquired pneumonia. An official clinical practice guideline of the American Thoracic Society and Infectious Diseases Society of America. Am J Respir Crit Care Med. 2019Oct 1;200(7):e45-e67.
https://www.atsjournals.org/doi/full/10.1164/rccm.201908-1581ST
http://www.ncbi.nlm.nih.gov/pubmed/31573350?tool=bestpractice.com
In all patients with pleural effusion, aspiration and culture of the pleural fluid should be considered. Parapneumonic effusions – exudates; positive Gram staining of the pleural fluid indicates empyema.
Bronchoscopy
Bronchoscopy should be considered in immunosuppressed patients, in patients with severe AHP, and in cases of treatment failure. The most common sampling methods are bronchoalveolar lavage (BAL) and brush biopsy. A threshold value of 10⁴ colony forming units (CFU)/ml in BAL samples indicates the presence of infection. For brush biopsy, a threshold of 10³ cfu/mL is recommended to distinguish colonization from infection.[84]Sirvent JM, Vidaur L, Gonzalez S, et al. Microscopic examination of intracellular organisms in protected bronchoalveolar mini-lavage fluid for the diagnosis of ventilator-associated pneumonia. Chest. 2003 Feb;123(2):518-23.
http://www.ncbi.nlm.nih.gov/pubmed/12576375?tool=bestpractice.com
Molecular Techniques
Conventional plating is too time consuming and not feasible from a treatment perspective. Nucleic acid amplification techniques such as polymerase chain reaction have improved diagnostic accuracy in NGP. Molecular methods provide high sensitivity and specificity in the diagnosis of mono- or polymicrobial infections and can help detect antimicrobial resistance (as may occur in the presence of Staphylococcus aureus, non-fermenting gram-negative rods, and enterobacteria) associated with severe AHP.[85] Murdoch D.R. How recent advances in molecular tests could impact the diagnosis of pneumonia. Expert Rev Mol Diagn. 2016;16(5):533-40.
http://www.ncbi.nlm.nih.gov/pubmed/26891612?tool=bestpractice.com
The American Thoracic Society recommends that nucleic acid tests be used to analyze respiratory specimens for viral pathogens other than influenza only in hospitalized patients with suspected AHP who have either severe AHP or are immunocompromised.