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

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
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