Respiratory TB PCR
General Information
- Lab Name
- Respiratory TB PCR
- Lab Code
- MTBP
- Epic Ordering
- Respiratory TB PCR
- Description
- This test must be ordered with an AFB culture with stain (AFBHSC). Exception: outside locations that perform AFB culture may submit sediments of specimens concentrated for AFB culture for testing. This test is reflexively ordered on the first sputum for AFB culture on HMC and UW-MT patients, except cystic fibrosis patients who have the test performed by request only. Additional tests can be ordered by request as long as the patient has not been on anti-TB medications for longer than 3 days. Reflexive testing is repeated every 28 days on TB negative patients. See also TBCPCR for TB PCR performed at UW-MT Microbiology. For request on FLUIDS or TISSUE see TBCPCR. Specimen deadlines for same day results are 7 AM @UW-MT and 9 AM @HMC. This test detects M. tuberculosis complex DNA. Specimens are concentrated and cultured (see AFBHSC).
- Synonyms
- AFB-Amplified, AMTD, Cepheid, GeneXpert, MTD, M. Tuberculosis, Mycobacteria, PCR-TB, Xpert
- Components
-
Code Name SDES Specimen Description SREQ Special Requests MTBPR MTBC PCR Result RPT Report Status
Interpretation
- Method
- Nucleic Acid Amplification(Cepheid GeneXpert)
- Reference Range
- See individual components
- Guidelines
Ordering & Collection
- Specimen Type
- Sputum, Bronchoalveolar Lavage (BAL), Brochial Washings
- Collection
- Deep cough or induced sputum specimens, bronchoalveolar lavage, or bronchial washings
- Handling Instructions
- Specimen must be refrigerated within 30 minutes and received within 5 days of collection.
- Quantity
-
requested: 5-10 mL Sputum, BAL, or Bronchial Washings, or 1 mL sediment from specimen concentrated for AFB culture
minimum: 2 mL (suboptimal) Sputum, BAL, or Bronchial Washings, or 1 mL sediment from specimen concentrated for AFB culture
Processing
- Processing
- Specimens are stored refrigerated until concentrated.
Performance
- LIS Dept Code
- Microbiology (MC)
- Performing Location(s)
-
HMC Microbiology
206-744-5858325 9th Ave, Rm # GWH-47, Seattle, WA 98104-2420
- Frequency
- Daily
- Available STAT?
- No
Billing & Coding
- CPT codes
- 87556
- LOINC
- 14556-5
- Interfaced Order Code
- UOW2952