| Test Name: | KOH Preparation |
| Epic Order Code: | LAB251 |
| CPT Code: | 87220 | | |
| Specimen(s) Type: | Can be ordered on any source suspected of harboring a fungus (typically skin, hair or nails). |
| Acceptable Container(s): | sterile container or swab |
| Testing Schedule: | 24 hours/day, 7 days/week |
| Turn Around Time: | STAT: NA |
| Routine: Same day |
| Collection Information: | Refer to Microbiology Collection Information by Source. |
| Transport Information: | Deliver to lab immediately at room temperature. All specimens must be signed into the laboratory. |
| Reference Client: | If unable to deliver to lab immediately, store and transport at room temperature. Respiratory specimens for KOH should be stored and transported at 2-8° C. Specimen must be delivered to lab within 24 hours. |
| Causes for Rejection: | Improperly labeled, incorrect container, contaminated, insufficient quantity, improper/delay in transport. |
| Reference Range: | Negative |
| Additional Information: | Interpret a negative KOH with extreme caution as a negative result does not rule out the presence of systemic fungi. All KOH orders should be backed-up by a fungus culture. |