Determine presence of mycobacteria
No mycobacteria seen on smear. Positive smears will be quantitated and reported as: rare (1-3 bacilli in entire smear), few (4-9 bacilli in entire smear), moderate (>10 bacilli in entire smear), or numerous (1 or more bacilli per high power field).
Cultures are more sensitive than smears. The smear may be negative when the culture is positive.
Preliminary results are reported in 12-24 hours, Monday - Saturday. The health care provider will be notified of positive smears. STAT smears are not done routinely and are not recommended on unconcentrated specimens due to the low number of organisms. Contact the MLabs office if there is a special need for a STAT smear.
- Atypical Mycobacteria Smear
- Auramine Stain
- Fluorescent Stain, AFB
- Kinyoun Stain
- Mycobacteria Smear
- TB Smear
- AFB SMEAR ONLY
- Acid Fast Bacilli Smear
Supervisory approval required for STAT AFB Smear.
Appropriate specimen for smear is the same as for culture. For optimum recovery, send immediately. If specimen must be stored, refrigerate immediately after specimen collection; specimen may be refrigerated up to 72 hours. Do not incubate. Indicate specimen source, collection date/time, current antibiotic therapy, and clinical diagnosis.