| A B C D E F G H I J K L M N O P Q R S T U V W X Y Z # |
MTB NAA+AFB SMEAR/CULT/ID/AST
Message"When collecting sputum, have the patient brush teeth, remove dentures, and rinse mouth with water. Instruct the patient not to collect saliva. When collecting aspirates, use standard aseptic preparation. Lung respiratory tissue may be fresh or frozen; no fixative.
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Test Code
183656
CPT Codes
87116; 87206; 87556
Preferred Specimen
"Lung/respiratory tissue, sputum, bronchial washing/lavage, respiratory aspirate, body fluid, or cerebrospinal fluid (CSF)
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Minimum Volume
"5 mL sputum or respiratory aspirate/lavage, 2 cm3 tissue from fine needle biopsy, 5 mL CSF, 50 mL body fluid (eg, gastric aspirate/lavage, pleural, pericardial, chronic peritoneal dialysate, thoracentesis)
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Transport Container
"Sterile screw-cap container; seal cap tightly.
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Transport Temperature
"Refrigerate
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Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
"Quantity insufficient for testing; inappropriate specimen source (ie, other than those listed above); inappropriate specimen transport device; unlabeled specimen or name discrepancy between specimen and request label; specimen received after prolonged de
Methodology
" Nucleic acid amplification (NAA) technology for M tuberculosis detection. Concentrated smears with auramine/rhodamine and read by fluorescence microscopy. Broth-based and/or agar-based culture. Culture is held for six weeks before negative is reported. Organisms other than M tuberculosis are identified by use of DNA probes and/or nucleic acid sequencing. Susceptibility tests are done by broth-based and conventional methods. "
