Sign in →

Test ID TBPZA Susceptibility, Mycobacterium tuberculosis Complex, Pyrazinamide, Varies


Ordering Guidance

To test for first-line agents, isoniazid, rifampin and ethambutol, order TB1LN / Antimicrobial Susceptibility, Mycobacterium tuberculosis Complex, First Line, Varies

Additional Testing Requirements

CTB / Mycobacteria and Nocardia Culture, Varies or CTBID / Culture Referred for Identification, Mycobacterium and Nocardia, Varies must also be ordered and will be charged separately unless identification of organism is provided.

Shipping Instructions

1. See Infectious Specimen Shipping Guidelines

2. Place specimen in a large infectious container (T146) and label as an etiologic agent/infectious substance.

Necessary Information

Specimen source and suspected organism identification are required.

Specimen Required

Specimen Type: Organism

Supplies: Infectious Container, Large (T146)

Container/Tube: Middlebrook 7H10 agar slant

Specimen Volume: Isolate

Collection Instructions: Organism must be in pure culture, actively growing.


If not ordering electronically, complete, print, and send a Microbiology Test Request (T244) with the specimen.

Useful For

Susceptibility testing of Mycobacterium tuberculosis complex isolates growing in pure culture against pyrazinamide


Confirming M tuberculosis complex resistance to pyrazinamide

Additional Tests

Test ID Reporting Name Available Separately Always Performed
STVP Susceptibility, Mtb Complex, PZA No, (Bill Only) Yes

Reflex Tests

Test ID Reporting Name Available Separately Always Performed
MTBVP Mtb PZA Confirmation, pnc A Sequence No, (Bill Only) No

Testing Algorithm

When this test is ordered the additional test will always be performed at an additional charge.

If resistance to pyrazinamide is detected, the reflex test for confirmation of resistance will be performed at an additional charge.

Method Name

Broth Dilution at Critical Drug Concentrations

Reporting Name

Susceptibility, Mtb Complex, PZA

Specimen Type


Specimen Stability Information

Specimen Type Temperature Time Special Container
Varies Ambient (preferred)

Reference Values

Results are reported as susceptible or resistant.

Day(s) Performed

Monday through Sunday

Report Available

10 to 21 days

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Test Classification

This test has been cleared, approved, or is exempt by the US Food and Drug Administration and is used per manufacturer's instructions. Performance characteristics were verified by Mayo Clinic in a manner consistent with CLIA requirements.

CPT Code Information

87188-Susceptibility, Mycobacterium tuberculosis Complex, Pyrazinamide

87153-Mtb PZA Confirmation, pncA Sequencing (if appropriate)

LOINC Code Information

Test ID Test Order Name Order LOINC Value
TBPZA Susceptibility, Mtb Complex, PZA 56026-8


Result ID Test Result Name Result LOINC Value
TBPZA Susceptibility, Mtb Complex, PZA 56026-8