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KOH Staining, Sputum

KOH Staining, Sputum

Also referred as
KOH Staining (Small Specimen)
Fungal test for Sputum
For men & women
Earliest reports in
72 hours
Contains
1 test
Know more about this test

KOH (Potassium hydroxide) staining is a simple, non-invasive test that helps to diagnose fungal infections in sputum. A sputum sample is collected and examined for signs of fungal infections under a microscope. A KOH test is recommended for individuals with the symptoms of fungal infections of the lung and immunosuppressive conditions.

A KOH test does not explicitly identify the type of fungus; it only shows that fungus is present. In most cases, knowing the fungus precisely causing the infection may not be necessary. The doctor can make an informed judgment and prescribe treatment.

Samples required
Sputum
Preparations
No special preparation is required.
Sample Collection
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FAQs related to KOH Staining, Sputum

The KOH Staining, Sputum test is an easy and non-invasive lab test used to find fungal infections in the lungs and respiratory system. It involves taking a sputum sample, adding a special solution to break down mucus and other material, and then looking at the sample under a microscope to check for any signs of fungi.
The KOH Staining, Sputum test is done in order to look for fungal infection in the lungs and respiratory tract. It is ordered when an individual shows symptoms like chronic cough, chest pain, discomfort in breathing, runny nose, sore throat, etc., especially if bacterial infections have already been ruled out.
The sputum sample is collected by coughing up sputum (mucus) from the lungs, usually in the morning. It’s important to cough deeply to produce a good sample. The sample is then sent to a laboratory for analysis.
The sputum sample should be collected early in the morning after taking a deep cough. It is advised to rinse the mouth thoroughly with water before sample collection to help remove food particles and avoid contamination.
No, KOH sputum test is a noninvasive procedure that does not hurt at all. However, producing a deep cough to provide a sputum sample can be challenging for some people, particularly for those who are suffering from respiratory illness, but it is not painful anyway.
If fungal elements are detected in the test sample, doctors may recommend further testing to identify the exact fungus causing the infection. Based on this information, doctors may prescribe antifungal medication to resolve the infection.
No, the KOH Staining, Sputum test is specifically designed to detect fungal infections and cannot identify bacterial infections. If a bacterial infection is suspected, other tests, such as a bacterial culture or PCR test, may be needed.
Most respiratory fungal infections are not contagious and do not spread from person to person. These types of infections are usually caused by inhaling fungal spores from environmental sources such as soil, debris from organic matter, bird droppings, pet danders, etc.
A good way to prevent respiratory fungal infections is to avoid places where fungal spores are found, like areas with mold, dust, or bird droppings. People with weak immune systems should be extra careful, like wearing masks or staying away from certain outdoor activities. It's also important to strengthen the immune system with healthy food and regular medical care.
Tata 1mg ensures accurate lab test results through certified laboratories that use advanced technology and adhere to stringent quality control measures. This commitment to high standards guarantees reliable results.
Content created by
Written by:
Dr. Lipika Khurana
BDS, PGDHHM
Reviewed by:
Dr. Swati Gupta (Anand)
MBBS, MD Lab Medicine
Want to know moreRead our editorial policy
Last Updated22nd Nov 2025

KOH Staining, Sputum test price for other cities

Price inNew DelhiRs. 319
Price inHyderabadRs. 310
Price inBangaloreRs. 479
Price inMumbaiRs. 319
Price inLucknowRs. 320

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KOH Staining, Sputum