Supplemental Information or Form
Form LAB 444 (03/12) (MDL-N-25), EXAMINATION FOR MYCOBACTERIA TUBERCULOSIS DRUG SUSCEPTIBILITY
Performed on Specimens from
Patients suspected of having drug-resistant tuberculosis, patients who are especially susceptible to treatment failure, cultures of M. tb complex mixed with non-TB mycobacteria or other bacteria.
Acceptable Sample/ Specimen Type for Testing
Sediment or culture. At least 0.5 ml of a concentrated sample which is acid-fast smear positive.
Minimum Volume Required
0.5 ml for sediment, more if preferred.
Storage & Preservation of Specimen Prior to Shipping
If sediment, refrigerate. If culture, incubate at 35-37°C.
Patient’s name, accession number
Shipping Instructions which Include Specimen Handling Requirements
Ship cultures of M. tb complex as infectious substances. Sediments may be shipped as diagnostic specimens with a cold pack.
1 to 3 days
Interferences & Limitations
Inhibitory substances in the specimen may prevent successful DNA amplification and pyrosequencing.
MDL Points of Contact
Mycobacterial Diseases Section (drug susceptibilities) (510) 412-3929Email: firstname.lastname@example.org
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