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Tests and diagnosis
By Mayo Clinic staff
Your doctor may first suspect pneumonia based on your medical history and a physical exam. You may undergo some or all of these tests:
- Physical exam. During the exam, your doctor listens to your lungs with a stethoscope to check for abnormal bubbling or crackling sounds (rales) and for rumblings (rhonchi) that signal the presence of thick liquid.
- Chest X-rays. X-rays can confirm the presence of pneumonia and determine the extent and location of the infection.
- Blood and mucus tests. You may have a blood test to measure your white cell count and look for the presence of viruses, bacteria or other organisms. Your doctor also may examine a sample of your mucus or your blood to help identify the particular microorganism that's causing your illness.
References
- Pneumonia. The Merck Manuals: The Merck Manual for Healthcare Professionals. http://www.merck.com/mmpe/sec05/ch052/ch052a.html. Accessed April 8, 2011.
- Pneumonia. American Lung Association. http://www.lungusa.org/lung-disease/pneumonia/. Accessed March 17, 2011.
- Durrington H, et al. Recent changes in the management of community-acquired pneumonia in adults. British Medical Journal. 2008;336:1429.
- Menendez R, et al. Treatment failure in community-acquired pneumonia. Chest. 2007;132:1348.
- Singh S, et al. Long-term use of inhaled corticosteroids and the risk of pneumonia in chronic obstructive pulmonary disease: A meta-analysis. Archives of Internal Medicine. 2009;169:219.
- Chong C, et al. Pneumonia in the elderly: A review of the epidemiology, pathogenesis, microbiology and clinical features. Southern Medical Journal. 2008;101:1141.
- Chong C, et al. Pneumonia in the elderly: A review of severity assessment, prognosis, mortality, prevention and treatment. Southern Medical Journal. 2008;101:1134.
- Pneumococcal disease in-short. Centers for Disease Control and Prevention. http://www.cdc.gov/vaccines/vpd-vac/pneumo/in-short-both.htm. Accessed March 23, 2011.
- File TM. Treatment of hospital-acquired, ventilator-associated, and healthcare-associated pneumonia in adults. http://www.uptodate.com/home/index.html. Accessed March 23, 2011.
- Mandell LA, et al. Pneumonia. In: Fauci AS, et al. Harrison's Online. 17th ed. New York, N.Y.: The McGraw-Hill Companies; 2008. http://www.accessmedicine.com/content.aspx?aid=2899132. Accessed April 5, 2011.
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