Mycobacterium tuberculosis PCR (CSF)

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Testing Laboratory

Auckland Te Toka Tumai | Auckland Hospital

Department

Microbiology

Delphic Registration Code (Alpha Code)

GXTB

Test Code (Numeric Code)

2460

Laboratory Handling

Sample Stability

24 Hours

Synonyms

MTB Complex DNA Detection
TB PCR
Tuberculosis PCR

Turnaround Time

48 hours

Turnaround time excludes weekends and public holidays. Please discuss with the Clinical Microbiologist if urgent or non-routine specimens.

Specimen Type

  • CSF

Specimen Requirements

Tube/Container Type:

Preferred
  • CSF sterile tubes (Routine Analysis)
Preferred Sample Volume (ml)

10

Minimum Sample Volume (ml)

3

Paediatric Specimen Requirements

Tube/Container Type:

Preferred
  • CSF sterile tubes (Routine Analysis)
Acceptable
  • CSF sterile tubes (Routine Analysis)
Preferred Sample Volume (ml)

10

Minimum Sample Volume (ml)

3

Additional Specimen Information

Specimens of sufficient volume will undergo mycobacterial culture and MTB PCR (GeneXpert MTB/RIF assay). Specimens with a normal white cell count or inadequate volume will not be routinely processed.

Last updated: 13/04/2026