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HelpTest Code MTMOL Molecular Detection of Mycobacterium tuberculosis
Specimen Requirements
Submit only one of the following
Specimen Type: Respiratory aspirates, fresh tissues, biopsies and body fluids
Container/Tube: Sterile, screw-capped container
Volume: 5.0 mL (fluids, aspirates); 5.0 g (tissues)
Minimum Volume: 1.0 mL (fluids, aspirates); 2.0 g (tissues)
Collection Instructions: Collect aseptically into a sterile container.
Specimen Type: Whole blood or Bone marrow
Container/Tube: Lavender Top (EDTA)
Volume: 3.0 mL
Minimum Volume: 1.0 mL
Specimen Type: CSF and Stool specimens – consult with NUH Microbiologist before sending.
Specimen Stability
Preferred temperatures for storage prior to and during shipping to NUH
| Specimen Type | All types |
|---|---|
| Ambient | Submit to lab as soon as possible |
| Refrigerate | 24 hours |
| Frozen | Do not freeze sample |
Methodology
Real-time Polymerase Chain Reaction
Days and Times Performed
Monday through Saturday, TAT 1 - 2 days
Reference Interval
Negative for Mycobacterium tuberculosis Complex.
Critical Values: Clinician will be informed of positive result.
Testing Laboratory
National University Hospital
Clinical Microbiology, 67724343
Useful For
Rapid molecular diagnosis of Mycobacterium tuberculosis infection
Update
Last updated 21/3/2025
LOINC Code Information
Not applicable.
Unacceptable Condition
1) Hard bone specimen
2) Swab specimens- These have low amounts of material
3) For NUH patients with previously reported positive MTMOL results sent within 2 weeks, sample will be rejected.
Service Code
23601
Laboratory Code
LAB2100