1. At least eight species of dermatophytes are associated with tinea capitis. 2. Common organisms causing nail infections include yeasts and molds ( particularly dermatophytes ). 3. If kept beyond 14 days, false positive can result even with non-dermatophytes . 4. Dermatophytes or yeast seen on a KOH test indicate the person has a fungal infection.5. Dermatophytes known to cause athlete's foot will demonstrate multiple septate branching hyphae on microscopy.6. Dermatophytes cause infections of the skin, hair and nails, obtaining nutrients from keratinized material.7. Dermatophytes usually do not invade living tissues, but colonize the outer layer of the skin.8. A normal, or negative, KOH test shows no fungi ( no dermatophytes or yeast ). 9. Dermatophytes are the parasitic fungi that cause skin infections such as athlete's foot and tinea cruris.10. A special agar called Dermatophyte Test Medium ( DTM ) has been formulated to grow and identify dermatophytes .
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