A B C D E F G H I J K L M N O P Q R S T U V W X Y Z #

Thiopurine Metabolites

Test Code
503800


CPT Codes
82542

Preferred Specimen
Whole blood


Minimum Volume
1mL


Instructions
Collect blood in lavender-top (EDTA) tube only. Gently invert to mix. Submit whole blood refrigerated. Do not separate specimen. Do not freeze.


Transport Container
Lavender-top (EDTA) tube


Transport Temperature
Refrigerate


Specimen Stability
Room temp: 1 day: Refrigerate: 14 days; Frozen: UNSTABLE


Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Frozen specimen, not EDTA whole blood


Methodology
Whole blood washing and red blood cell harvesting/counting. Liquid chromatography/tandem mass spectrometry (LC/MS-MS) after acidic hydrolysis



The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.