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Tests and diagnosis

By Mayo Clinic staff

If the medical team suspects epiglottitis, the first priority is to ensure that your or your child's airway is open and that enough oxygen is getting through. Oxygen levels are monitored using a device called a pulse oximeter. This device, similar to a clothespin, clips on to a finger and measures the amount of oxygen saturation in your blood. If levels drop too low, you or your child will need help breathing.

Once your or your child's condition is stable, the doctor may:

  • Examine the throat. Using a flexible fiber-optic tube, the doctor may look down your or your child's throat to see what's causing the symptoms. A local anesthetic can help relieve any discomfort.
  • Request a chest or neck X-ray. Because of the danger of sudden breathing problems, children may have X-rays taken at their bedside rather than in the radiology department — but only after the airway is protected.
  • Perform a throat culture and blood tests. For the culture, the epiglottis is wiped with a cotton swab and the tissue sample is checked for Hib. Blood cultures are usually taken because bacteremia — a severe bloodstream infection — may accompany epiglottitis.
References
  1. Woods CR. Epiglottitis (supraglottitis): Clinical features and diagnosis. http://www.uptodate.com/home/index.html. Accessed March 12, 2010.
  2. Woods CR. Epiglottitis (supraglottitis): Treatment and prevention. http://www.uptodate.com/home/index.html. Accessed March 12, 2010.
  3. Epiglottitis. The Merck Manuals: The Merck Manual for Healthcare Professionals. http://www.merck.com/mmpe/print/sec08/ch090/ch090l.html. Accessed March 16, 2010.
  4. Is your child protected against Hib? Centers for Disease Control and Prevention. http://www.cdc.gov/Features/HibDisease/. Accessed March 16, 2010.
  5. Haemophilus influenzae type b (Hib) vaccine. Centers for Disease Control and Prevention. http://www.cdc.gov/vaccines/pubs/vis/downloads/vis-hib.pdf. Accessed March 12, 2010.
  6. Sobol SE, et al. Epiglottitis and croup. Otolaryngologic Clinics of North America. 2008;41:551.
  7. Lustig LR, et al. Ear, nose, and throat disorders. In: McPhee SJ, et al. Current Medical Diagnosis and Treatment. 49th ed. New York, N.Y.: McGraw-Hill Medical; 2010. http://www.accessmedicine.com/content.aspx?aID=2356. Accessed March 12, 2010.
  8. 8. Rubin MA, et al. Pharyngitis, sinusitis, otitis, and other upper respiratory tract infections. In: Fauci AS, et al. Harrison's Principles of Internal Medicine. 17th ed. New York, N.Y.: McGraw-Hill Medical; 2008. http://www.accessmedicine.com/content.aspx?aID=2883486. Accessed March 12, 2010.
  9. Hoecker JL (expert opinion). Mayo Clinic, Rochester, Minn. March 17, 2010.
  10. Steckelberg JM (expert opinion). Mayo Clinic, Rochester, Minn. March 23, 2010.
DS00529 May 4, 2010

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