Thiopurine methyltransferase

Alphabetical Test listing

Thiopurine methyltransferase-13556

  
Thiopurine methyltransferase
  
13556
  
LAB13556
  
TPMT
  
Thiopurine methyltransferase (TPMT), enzyme activity, erythrocytes
TPMT biochemical assay, myelotoxicity
  

Determination of TPMT levels that may be associated with toxicity of anticancer and anti-inflammatory drugs

  
Sodium heparin (Na hep) whole blood
  
  
8 mL
  
5 mL
  

Dk green Sodium heparin (Na hep), no gel

  
EDTA whole blood
  
  

Lavender (EDTA), 10mL

  

Refrigerated (strict) - 14 days

Frozen - NO

  
  • Frozen specimen
  • Gross hemolysis
  • Clotted specimen
  
Esoterix Endocrinology (501792) via LabCorp (510750): R-LC
  
3 x / wk
  
4 - 9 days
  

Enzymatic endpoint/liquid chromatography/tandem mass spectrometry (LC/MS-MS)

  

Normal: 15.1 - 26.4 units/mL RBC

Heterozygous for low TPMT variant: 6.3 - 15.0 units/mL RBC

Homozygous for low TPMT variant: <6.3 units/mL RBC

  
82657
  
No
  
Result 21563-2
  
04/11/2019
  
06/14/2019