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KOH Preparation

Infectious Disease Laboratories : Microbiology

Test ID/Workstation :
Specimen Type:
Skin, hair, nails, esophageal washing
Tube Type:
Specimen container
Collection Volume:
Small pieces of skin, nails or 1.0-2.0 mL of esophageal washing
Cause for Rejection:
Specimen sent on dry swab, QNS
Daily (0800-1600)
Microscopic exam
Special Instructions:
Small petri dishes can be used to transport pieces of skin, hair, or nails to laboratory for examination. These petri dishes are available from Microbiology (38412) upon request. LIMITATION : Cultures are generally more sensitive than smears. The KOH preparation may be negative while the culture may be positive.
Same day
Additional Info:
If received after 1600, prep will be read next day
CPT Code:
Fungal Smear; Microscopic Exam for Fungus
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There are 10 nurses in the picture.

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The five differences are:
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The two matching doctors are 9 and 14.

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The correct path:
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