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NetWellness provides the highest quality health information and education services created and evaluated by faculty of our partner universities.
Monday, October 6, 2008
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NetWellness provides the highest quality health information and education services created and evaluated by faculty of our partner universities.
Monday, October 6, 2008
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Skin lesion KOH examDefinitionThe skin lesion KOH exam is a test to diagnose a fungal infection of the skin. Alternative NamesPotassium hydroxide examination of skin lesion; Fungal wet prepWhy the Test is PerformedThis test is done to diagnose a fungal infection of the skin. How the Test is PerformedThe health care provider scrapes the lesion off your skin, using a blunt edge such as the edge of a microscope slide. The scrapings from the skin lesion are placed in liquid containing potassium hydroxide (KOH) and examined under the microscope. KOH destroys all non-fungal cells, which makes it easier to see if there is any fungus present. How to Prepare for the TestThere is no special preparation for the test. How the Test Will FeelYou may feel pressure when the doctor scrapes the lesion off your skin. RisksThere is a small risk of bleeding or infection from scraping the lesion. Normal ResultsNormally, there is no fungus. What Abnormal Results MeanThe KOH smear shows fungus, which may be related to ringworm, athlete's foot, jock itch, or another fungal infection.
Review Date: 4/16/2007 Reviewed By: Michael S. Lehrer, M.D., Department of Dermatology, University of Pennsylvania Medical Center, Philadelphia, PA. Review provided by VeriMed Healthcare Network. The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed physician should be consulted for diagnosis and treatment of any and all medical conditions. Call 911 for all medical emergencies. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. Copyright A.D.A.M., Inc. Any duplication or distribution of the information contained herein is strictly prohibited.  |
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