Mycobacterial (AFB) Smear AFSM
Method(s) | Fluorochrome Stain |
---|---|
Specimen Required | |
Collect | Respiratory specimens. Also acceptable: Body fluid, CSF, gastric aspirate, tissue, or urine. |
Transport | Transport refrigerated. * Collection Instructions * Specimen Preparation:
Respiratory specimens:
Body Fluids or CSF:
Gastric Aspirates:
Tissue:
Urine:
|
Stability | Ambient: 24 hours Refrigerated: 1 week Frozen: 1 week |
Unacceptable Conditions |
|
Schedule | Daily |
Billing Code | 3010005 |
CPTCode | 87206 |
Notes | An Acid Fast Smear without culture is only used for rapid preliminary information and under most circumstances cannot be ordered without an acid fast culture with smear from concentrate. With regard to the disease caused by acid fast organisms, the predictive value of a positive smear result is very high, but the predictive value of a negative smear result is extremely low. |
Preferred Specimen Collection Device(s) | |
Reference Interval | |
No acid fast bacilli seen. |