6-Thioguanine Nucleotide


Test Information

Test Name

6-Thioguanine Nucleotide

Synonyms

6-TGN; 6TGN; Azathioprine Metabolite, 6MP, 6 Mercaptopurine, Thiopurine Metabolites

Preferred Specimen

EDTA (whole blood)

Testing Location

Referral

Turn Around Time

1 week


Collection Information

Preparation

  • DO NOT centrifuge & separate
  • DO NOT freeze sample

Processing Information

Registration Code

TGN

Notes

  • 6-TGN & 6-MMP are sometimes measured together - one single EDTA is sufficient
  • Canterbury will reflex add 6-MMP to all sample where 6-TGN is < 200 or > 1000/10E8 RBC as an indicator of potential toxicity

Methodology

Sample Storage

Fridge

Sample Stability

3 days

Interpretations

View Interpretations

Contact Information

laura.yau@pathlab.co.nz

External Referral Information

Referral Location

Canterbury Health Laboratory (via WHL)

External Lab Website