Drain for Fungus Stain/Fungal Smear (KOH)

Specimen Required

Drain Tip

Fasting Required

Purpose of the Test

The Fungus Stain/Fungal Smear (KOH) is a laboratory test used to detect fungal infections in skin, hair, or nail samples. This test helps in identifying the type of fungus responsible for the infection and guiding appropriate treatment.

When this test is required

It is important to note that the Fungus Stain/Fungal Smear (KOH) test is not always conclusive and other tests, such as fungal culture or biopsy, may be needed to confirm a diagnosis. Additionally, false-negative results are possible if there are only a few fungal organisms present in the sample or if the sample is not collected correctly.

What the Test Detects

The Fungus Stain/Fungal Smear (KOH) test is used to identify the presence of fungal organisms in skin, hair, or nail samples. It is a microscopic examination of the sample that utilizes potassium hydroxide (KOH) solution to dissolve the skin or tissue cells, leaving the fungal cells to be easily viewed under a microscope. The test also includes staining the sample with a dye to help identify the type of fungus present.

Preparation for the Test

There is no specific preparation required for this test. However, it is important to keep the affected area clean and dry before collecting the sample to ensure accurate results. You may need to avoid using any creams, lotions, or ointments on the infected area before the test.

Sample Requirements

To perform this test, a small sample of the infected area is collected and placed on a slide. A potassium hydroxide (KOH) solution is added to dissolve the cells and leave the fungal cells behind. The sample is then stained with a special dye that makes the fungal cells visible under a microscope.

Additional Notes

In summary, the Fungus Stain/Fungal Smear (KOH) test is used to identify the presence of fungal organisms in skin, hair, or nail samples. It can help diagnose fungal infections and monitor the effectiveness of treatment. However, it is not always conclusive and additional testing may be needed to confirm a diagnosis. Your healthcare provider can help determine if this test is necessary and provide guidance on how to collect an appropriate sample.

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