Sputum smear (KOH test)

Injury	Disease	Nutrition	Poison

Symptoms	Surgery	Test	Special Topic

Sputum test

Overview

Risks

Results

Sputum smear (KOH test)

Definition:

Sputum smear (KOH test) is a test for the presence of fungal microorganisms in sputum.

Alternative Names:

KOH test; Fungal smear

How the test is performed:

Obtain a sputum sample by coughing deeply and expelling the material that comes from the lungs (sputum) into a specimen container. A smear of sputum is prepared with potassium hydroxide (KOH) and examined under the microscope. If it is positive, fungal cells can be observed.

How to prepare for the test:

There is no special preparation.

How the test will feel:

There is no discomfort.

Why the test is performed:

The test may be performed when there is abnormal sputum production or when an infection of the lungs is suspected.

Review Date: 2/10/2006
Reviewed By: Kenneth Wener, M.D., Division of Infectious Diseases, Beth Israel Deaconess Medical Center, Boston, MA. 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 2004 A.D.A.M., Inc. Any duplication or distribution of the information contained herein is strictly prohibited.