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HelpTest ID TB1LN Antimicrobial Susceptibility, Mycobacterium tuberculosis Complex, First Line, Varies
Infectious
Additional Testing Requirements
CTB / Mycobacteria and Nocardia Culture or CTBID / Culture Referred for Identification, Mycobacterium and Nocardia must also be ordered and will be charged separately unless identification of organism is provided.
Shipping Instructions
1. See Infectious Specimen Shipping Guidelines in Special Instructions.
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.
Forms
If not ordering electronically, complete, print, and send a Microbiology Test Request (T244) with the specimen.
Useful For
Rapid, qualitative susceptibility testing of Mycobacterium tuberculosis complex isolates growing in pure culture
Affirming the initial choice of chemotherapy for M tuberculosis infections
Confirming the emergence of drug resistance
Guiding the choice of alternate agents for therapy for M tuberculosis infections
Additional Tests
| Test ID | Reporting Name | Available Separately | Always Performed |
|---|---|---|---|
| STV1 | Susceptibility, Mtb Complex, Broth | No, (Bill Only) | Yes |
Reflex Tests
| Test ID | Reporting Name | Available Separately | Always Performed |
|---|---|---|---|
| STV2 | Susceptibility, Mtb Cx, 2nd Line | No, (Bill Only) | No |
Testing Algorithm
When this test is ordered, the additional test will always be performed and charged separately.
If resistance to a first line antimicrobial agent is detected reflex testing for confirmation of resistance and second line agents will be performed and charged.
Special Instructions
Method Name
Broth Dilution at Critical Drug Concentrations
Reporting Name
Susceptibility, Mtb Complex, 1 LineSpecimen Type
VariesSpecimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Varies | Ambient (preferred) | ||
| Refrigerated | |||
Reference Values
Results are reported as susceptible or resistant.
Day(s) Performed
Monday through Sunday
Report Available
10 to 21 daysPerforming 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 x 3-Antimicrobial Susceptibility, Mycobacterium tuberculosis Complex, Broth Method
87186-Susceptibility, Mtb Cx, 2nd Line (if appropriate)
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| TB1LN | Susceptibility, Mtb Complex, 1 Line | 29579-0 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| TB1LN | Susceptibility, Mtb Complex, 1 Line | 29579-0 |