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Lab Use Only - Modified Acid Fast Stain
MessageOnly orderable by Microbiology Lab Submit 1 of the following samples. Culture recommended in addition to stain5-10 mL respiratory specimens including expectorated sputum, aerosol-induced sputum, bronchial washing, bronchial brushing, transtracheal aspirate, bronchoalveolar lavage fluid collected in a sterile, leakproof container 2. As much as possible of biopsy, aspirate or granules from lung, sinus tract, subcutaneous tissue, central nervous system collected in a sterile, leak-proof container or 3. Other systemic sites collected in aculture swab in Amies liquid transport swab, Amies gel transport swab, Amies liquid elution swab (ESwab) or equivalent4. 5 mL body fluid collected in a sterile, leak-proof container 5. 2 mL CSF collected in a sterile, leak-proof container 6. 40 mL entire first morning voided urine collected in a sterile, leak-proof container
Test Code
LAB11154 MAFST
Alias/See Also
MAFST
CPT Codes
87206
Includes
Only orderable by Microbiology Lab @BKRCERMSGREFRESH(2302793)@ @BKRCERMSGREFRESH(2302794)@
Instructions
Minimum Testing Volume: 2.0 mL respiratory specimen2.0 mL body fluid1.0 mL CSF20.0 mL urine Transport Temperature: Refrigerated Stability: Ambient: N/A Refrigerated : 5 daysFrozen: N/A Causes for Rejection: 24 hour pooled urine 24 hour pooled sputum Dry swabs Specimens received in alcohol, formalin, EDTA, lithium heparin or conventional blood culture bottlesSwabs or raw unpreserved specimen >5 days oldThroat/oral/sputum from non-cystic-fibrosis patientsStool specimens Urine specimens in preservative tubes Red-top (silica-containing) plastic tubes and tubes with additives or clot activator Prepared slidesSpecimens received in expired transports
Report Available
5-Days
Clinical Significance
1230170443
Last Updated: May 18, 2026
