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Mayo Clinic Laboratories

Test Code AFBST Acid Fast Bacillus Stain, Varies

Specimen Volume

Varies

Preferred Specimen

Sterile Specimen Cup

Specimen Handling Instructions

Must be collected in clean, sterile container. Specimens vary – 1mL required. Stain not perfromed on blood or bone marrow. Keep sample refrigerated. Urine 1st a.m void. Sputum-3 consecutive including one 1st morning. specimen.

Transport

Routine courier pick-up

Cutoff Time

None

Department

Microbiology

Methodology

Fluorochrome

Stat Turn-around Time

N/A

Routine Turn-around Time

1 Day

Reference Ranges

No AFB seen