Test Code LAB240 Culture, Fungus, Dermatophyte with KOH
Methodology
Conventional Culture Technique/KOH Wet Mount
Performing Laboratory
RCH
Specimen Requirements
Submit only 1 of the following specimens:
Acceptable Specimens:
Hair, nail, or skin scraping
Hair
1. Clip or pluck hairs from affected area and place in a
screw-capped, sterile container.
2. Label container with patient’s name (first and
last), date and time of collection, and type of specimen.
3. Maintain sterility and forward promptly at ambient temperature
only.
Note: Specimen source is
required on request form for processing.
Nail or Skin Scraping
1. Wash site thoroughly with 60% isopropanol.
2. After drying site, scrape lesion with a sterile scalpel or edge
of a glass slide.
3. Place specimen in a screw-capped, sterile container. Do not
attempt to keep nail or skin scraping moist during transit.
4. Label container with patient’s name (first and
last), date and time of collection, and type of specimen.
5. Maintain sterility and forward promptly at ambient temperature
only.
Note: Specimen source is
required on request form for processing.
Day(s) Test Set Up
Monday through Sunday
Test Classification and CPT Coding
87101 - culture
87220 - KOH