Skip to main content

Specimen Collection Manual and Test Catalog

  or
  or
  or

TPMT ACTIVITY

Geisinger Epic Procedure Code:  LAB3739    Geisinger Epic ID:  140942

SPECIMEN COLLECTION
Specimen type: 

EDTA whole blood


Preferred collection container: 
Alternate collection container: 
6 mL pink-top K2 EDTA tube
Specimen required: 

Two EDTA (lavender-top) tubes with 4 mL whole blood; minimum 2 mL each tube.


Special notes: 

Collect venous blood in 2 separate EDTA (lavender-top) tubes (4 mL each tube).



SPECIMEN PROCESSING
Transport temperature: 

Ship at 2-8°C (refrigerated) within 24 hours of collection.


Specimen stability: 

Room temperature: 48 hours. Refrigerated: 9 days.



TEST DETAILS
CPT code(s):  84433
Note: The billing party has sole responsibility for CPT coding.  Any questions regarding coding should be directed to the payer being billed.
The CPT codes provided by GML are based on AMA guidelines and are for informational purposes only.

Methodology: 
Chromatography/Mass Spectrometry
Synonyms: 

Quest test code 18831, TPMTAC


Review Date:  12/05/2024

Performing Locations