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AFB Smear
MessagePerformed in the Microbiology Laboratory x5785
Routinely performed on all appropriate specimens sent for Mycobacteria (AFB) Culture (CXAFB)
Consult with Microbiology lab for AFB smear-only request., 6-5785
Routinely performed on all appropriate specimens sent for Mycobacteria (AFB) Culture (CXAFB)
Consult with Microbiology lab for AFB smear-only request., 6-5785
Test Code
AFBST
Alias/See Also
Smear, Mycobacteria
CPT Codes
87206
Preferred Specimen
Refer to CXAFB Culture, Mycobacteria (AFB)
Minimum Volume
Refer to CXAFB Culture, Mycobacteria (AFB)
Instructions
Refer to CXAFB Culture, Mycobacteria (AFB)
Transport Container
Refer to CXAFB Culture, Mycobacteria (AFB)
Transport Temperature
Room temperature
Specimen Stability
Room temperature: 6 hours
Refrigerated: 7 days
Refrigerated: 7 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Swabs are not acceptable.
Not performed on urine specimens which may contain saprophytic mycobacteria that cannot be distinguished by smear from M.tuberculosis.
Not performed on cerebrospinal fluid due to low sensitivity of mycobacteria staining in this specimen type.
Not performed on urine specimens which may contain saprophytic mycobacteria that cannot be distinguished by smear from M.tuberculosis.
Not performed on cerebrospinal fluid due to low sensitivity of mycobacteria staining in this specimen type.
Methodology
Concentrated Auramine-Rhodamine stain read by fluorescent microscopy.
Setup Schedule
Sunday - Saturday
Limitations
Performed on CSF only upon special request where cell count, glucose, and protein levels indicate high likelihood of M. tuberculosis.
Reference Range
No acid fast bacilli seen.
Performing Laboratory
Microbiology X65785 / X65786
