Skip to main content

Specimen Collection Manual and Test Catalog

  or
  or
  or

ERYTHROCYTE PORPHYRIN (EP), WHOLE BLOOD

Geisinger Epic Procedure Code:  LAB2233    Geisinger Epic ID:  45093

SPECIMEN COLLECTION
Specimen type: 

Whole blood


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

1 mL whole blood; minimum 0.5mL


Special notes: 

Protect from light.



SPECIMEN PROCESSING
Transport temperature: 

Refrigerated.


Specimen stability: 

Room temperature: Unacceptable. Refrigerated: 14 days. Frozen: 30 days.


Rejection criteria: 

Clotted specimen. Specimen not protected from light.



TEST DETAILS
CPT code(s):  84202
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: 
Hematofluorometry
Synonyms: 

Quest test code 39777, RBC Porphyrins, FEP, EPROPO


Clinical significance: 

Screen for erythropoietic protoporphyria (EPP) in patients with cutaneous photosensitivity.


Review Date:  12/16/2024

Performing Locations