Mycobacteriology (AFB) Respiratory Culture and Acid Fast Stain
Additional Codes
LAB10408
Performing Laboratory
MBMC-Microbiology
Methodology
Aerobic Culture
Specimen Requirements
Ambient specimen must arrive within 1 hour of collection.
Specimen Type: Bronchial brush, broncial washing, bronchoalveolar lavage, deep throat, pleural fluid, sputum, sptutm-induced, tracheal aspirate, gastric aspirate
Container/Tube: Sterile container or Eswab for deep throat only
Specimen Volume: 5mL or 1 swab
Collection Instructions: Sputum: When patients have clinical and chest x-ray findings compatible with tuberculosis, 3 sputum specimens are recommended; collected over an 8-24 hour period of time and should include at least 1 first-morning specimen. Do not pool specimens.
Additional Information: Specimen source is required.
Specimen Transport Temperature
Ambient
Day(s) Test Set Up
Monday through Sunday
Turnaround Time:
Preliminary culture results available after one week.
Stain: 24 hours (M-F)
Stability
Eswab up to 48 hours
Reference Values
Negative for AFB
Critical value (automatic call-back): If smear or culture is positive for mycobacterium