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Laboratory Test Reference Guide

Laboratory Information

Test Name

Mycobacterium culture


Tb culture
Mycobacterium tuberculosis
Mycobacterium species

Specimen Collection

Pre Testing Requirements

Notify laboratory if results are required URGENTLY.Ph: 07 8398646 or 07 8398806 ext 98364**For blood or bone marrow TB testing, request special media from Microbiology lab on Ext 98646

Specimen Collection and Transport Protocols

Culture of urine is no longer considered necessary when investigating pulmonary TB, as it does not lead to an increase in the number of cases detected, or decrease time to detection.

Sample: sputum (early morning sample x3 collected on different days), bronchial washings, early morning urine (EMU, full void x3 collected on different days), faeces (immunocompromised patients for MAIC), tissue, aspirate, CSF, blood and bone marrow **

Sample Delivery to Lab

Refrigerate if delivery delayed

Test Information



Test Availability

Mon - Fri, 0800 - 1630 excl. Public Holidays

Laboratory Turnaround Time

AFB microscopy 24 hrs (batched daily Mon – Fri) or urgently by request. Culture 2 - 8 weeks. All positive microscopy and cultures are notified by phone / HL7 / Fax


AFB microscopy, culture: solid media and broth continuous monitoring system.

Additional Information

TB PCR (NAAT) is available on request, please refer: Mycobacterium tuberculosis complex DNA

Minimum Volume

Fluid / urine 50ml, CSF 1ml, sputum 5 ml