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HelpTest Code MTB M. Tuberculosis, NAAT
Additional Codes
LAB1357
Collection Method
Sputum collection
Container
Sterile Container
Acceptable Specimens
Raw sputum, unpreserved
Minimum Volume
1ml
Specimen Stability
| Ambient | 3 days |
| Refrigerated (4°C to 8°C) | 10 Days |
| Frozen(-70°C to 0°C) | Do not freeze |
Reference or Target Ranges
Not Detected
Reportable Units
Detected and Not Detected
Critical Value
Detected result
Reasons for Rejection
| Hemolysis Threshold | N/A |
| Icterus Threshold | N/A |
| Lipemia Threshold | N/A |
| Other | QNS, contaminated, improperly labled, improper specimen type |
Performance Information
| Days and Time Performed | 24/7 |
| Expected Turn Around Time |
Stat: 1 hour Routine: 4 hours |
| Stat Availability | Yes |
| Performing Bench | CPH Microbiology |
| Methodology/Method Description | Cepheid GeneXpert |
CPT Codes
87556
Last review/edit date
2025