KOH Smear
Icon & Photos
Sterile container
Specimen Requirements
Skin, hair or nails:
The affected site is carefully washed with 70% alcohol and after drying, the lesion is scraped with a sterile scalpel and the material obtained is placed in a sterile container, a Petri dish or a piece of white paper folded to prevent loss of the specimen. Hairs from infected areas are clipped or plucked and sent to microbiology in a similar manner.
Genital:
Male urethral swabs may be collected and sent to the laboratory for examination.
Vaginal specimens for KOH are not acceptable; recommend ordering the Afftirm, VPIII.
Specimen Stability
Transport to the laboratory immediately
Reference Range
No Fungal Elements Seen
Methodology
Manual
CPT
87210
Test Alias
KOH Smear
Lab Handling
Due to a dilutional factor, ESwabs or swabs in liquid media are sub-optimal and should not be tested. Recommend ordering a fungal culture.