Supplemental Information or Form
Form LAB 444 (03/12) (MDL-N-25), EXAMINATION FOR MYCOBACTERIA TUBERCULOSIS DRUG SUSCEPTIBILITY
Performed on Specimens From
public health laboratories
Acceptable Sample/Specimen Type for Testing
Minimum Volume Required
ml if broth
Storage & Preservation of Sample/Specimen Prior to Shipping
at 35-37°C (or refrigerated).
name, accession number, inoculation date or subculture date.
Shipping Instructions which Include Specimen Handling Requirements
as infectious substance.
MGIT 960. Drugs routinely tested are isoniazid (INH) 0.1 μg/ml, rifampin 1
µg/ml, ethambutol 5 µg/ml, and pyrazinamide 100 µg/ml. When there is resistance
to any first-line drug, second-line drug susceptibility testing is performed.
In addition, when there is resistance to INH at 0.1 μg/ml, testing at 0.4 μg/ml
Average 2 weeks
Interferences & Limitations
unattainable because culture submitted is not pure.
MDL Points of Contact
Mycobacterial Diseases Section (drug susceptibilities) (510) 412-3929