Test Overview
Test Methodology

Provider performed microscopy- KOH prep

Test Usage

Performed by authorized providers in the point of care. KOH wet preparation is a useful aid in the diagnosis of fungal infection. Fungal elements can be seen microscopically, especially with the addition of 10% KOH, which will dissolve background material, such as mucous, cellular debris, an keratinized material, while leaving fungal elements intact.

Reference Range *

Negative

* Reference ranges may change over time. Please refer to the original patient report when evaluating results.

Test Limitations

•Use of a contaminated reagent can cause false positive exam.
•Too thick a preparation may obscure elements and can cause a false negative reading.

Test Details
Soft Order Code
PPMSK
MiChart Code
KOH Prep of Skin, Point of Care
Synonyms
    Laboratory
    Point of Care
    Section
    Point of Care
    Specimen Requirements
    Collection Instructions

    Skin scraping

    Additional Information

    For more test specific information, please refer to the test procedure found on the Michigan Medicine POC website: https://www.pathology.med.umich.edu/point-of-care

    Billing
    CPT Code
    87220
    LOINC
    55317-2
    NY State Approved
    No