What Is A KOH Mount Test?
KOH (Potassium Hydroxide) Mount test is an effective diagnostic tool used to detect fungal infections in skin, nails or hair samples. It is performed by applying a potassium hydroxide solution to a sample where the solution dissolves non-fungal elements, making fungi easier to identify under a microscope. The test is essential to diagnose medical conditions like dermatophytosis, candidiasis and tinea infections.
Fungal infections cause various skin and nail disorders, leading to discoloration, scaling and discomfort. A timely KOH Mount test allows a non-invasive and early diagnosis for appropriate treatment, preventing complications and further spread of the infection. The test is widely used by dermatologists to confirm the presence of fungal pathogens before prescribing antifungal medications.
How is the Test Performed?
KOH Mount test requires a sample of hair, nail or skin scrapping from the affected area.
Sample Collection
A DHA certified healthcare professional will take a sample from the affected area using a sterile scalpel or slide.
Lab Analysis
The collected sample is placed on a microscope slide and treated with a few drops of 10-20% potassium hydroxide (KOH) solution. The KOH dissolves keratin and other non-fungal debris, allowing fungal structures to remain visible.
Microscopic Examination
The slide is examined under a microscope to identify fungal elements like hyphae or spores, which confirm the presence of a fungal infection.
What are the symptoms that prompt this test?
Fungal infections can affect anyone regardless of gender and age. The symptoms may include:
- Persistent itching or rash
- Skin peeling, cracking or scaling
- Discoloration or thickening of nails
- Bald patches or brittle hair
- Red, inflamed skin with blisters
- Foul odor from affected areas
- Ring shaped rashes on skin
- Nail deformities
- White patches in the mouth (oral thrush)
What are Normal Ranges for This Test?
KOH Mount test indicates the presence of fungal infections. There is no quantitative range associated with it. A normal KOH Mount test indicates no fungal infections detected.
**The above mentioned range is for information purpose only. Normal levels are dependent on a number of factors including age, gender how the test is performed and health condition of patient etc. Result interpretation should be done by a qualified doctor or healthcare professional.**
What Happens if Test Results Show Abnormal Levels?
Abnormal (positive) results confirm a fungal infection. Your doctor may prescribe antifungal medications, such as creams, ointments or oral medications, depending on the severity and location of the infection.
If symptoms persist or worsen despite treatment, further testing such as a fungal culture or biopsy, may be recommended to identify the specific type of fungus and guide treatment.
