Susceptibility, Mycobacterium tuberculosis [7950X]

Test Code

CPT Codes
87190 (x5)

Ethambutol, Isoniazid, PZA, Rifampin, Streptomycin

Preferred Specimen
Pure isolate collected on an agar slant in a double-walled container or MGIT tube in a double-walled container

Transport Temperature
Room temperature

Specimen Stability
Room temperature: 30 days
Refrigerated: 30 days
Frozen: Unacceptable

Continuously Monitoring Broth System (a variation of Agar Proportion Method)

Setup Schedule
Set up: Thurs p.m.; Report available: 28-29 days

Reference Range
See Laboratory Report

Clinical Significance
Susceptibility reports can be used as a guide in the choice of first course therapy or in confirming antimicrobial resistance that leads to a further course of treatment. Also used to estimate the prevalence of primary and acquired antimicrobial resistance in a community.

Performing Laboratory
Quest Diagnostics Nichols Institute
14225 Newbrook Drive
Chantilly, VA 20153

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.