Skip to main content

Specimen Collection Manual and Test Catalog

  or
  or
  or

PROLACTIN, TOTAL AND MONOMERIC

Geisinger Epic Procedure Code:  LAB1036    Geisinger Epic ID:  52069

SPECIMEN COLLECTION
Specimen type: 

Serum


Preferred collection container: 
Alternate collection container: 
6 mL dark blue-top (K2 EDTA) tube
Specimen required: 

1 mL serum; minimum 0.4 mL



SPECIMEN PROCESSING
Processing instructions: 

Allow to clot. Centrifuge and aliquot.


Transport temperature: 

Room temperature.


Specimen stability: 

Room temperature: 7 days. Refrigerated: 7 days. Frozen: 6 months.



TEST DETAILS
CPT code(s):  84146 x2
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.

Test includes: 

Total Prolactin, Free Prolactin


Methodology: 
Immunoassay
PEG Precipitation
Synonyms: 

Prolac Total, Quest test code 16122, Macroprolactin,Big-Big Prolactin


Clinical significance: 

For some patients the level of Prolactin measured by immunoassay may be inaccurate with respect to the level of monomeric, biologically active Prolactin. The Macroprolactin by PEG Precipitation test can help to identify if a patient sample has elevated Prolactin due to mostly inactive protein-bound Prolactin (Macroprolactin).


Review Date:  12/05/2024

Performing Locations