ERYTHROCYTE PORPHYRIN (EP), WHOLE BLOOD

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This test was updated on 04/20/2026. Click here to view the changes.

Test Details

Mnemonic

PPR

Ordering Code

3423780

CPT-4 Code(s)

84202

Specimen Information

Collect

Lavender EDTA

Specimen Preparation

Send 1.0 mL whole blood refrigerated in a screw capped plastic vial. PROTECT FROM LIGHT.

Alternate Specimen

Whole blood: Dark blue EDTA

Minimum Volume

0.5 mL

Transport Temperature

Refrigerated

Rejection Criteria

Clotted samples, hemolysis, specimens not collected in EDTA

Stability

Room temperature: Unacceptable
Refrigerated: 14 days
Frozen: 28 days

Methodology

Fluorometry
more

Reference Range

See report
more

Performing Laboratory

ARUP
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New York DOH Approval Status

Yes
more
Turnaround Time
3-5 days
Performed
Monday, Wednesday, Friday
Legacy Code PPRQ
Example Report
Download

Resources

Interface Map for PPR

Test Name Ordering Code Result Code Component Name LOINC Code AOE Prompt Units
Protoporphyrin-RBC3423780
3423780Protoporphyrin-RBC2898-5No

The CPT codes provided are for general informational purposes only and are based on an interpretation of AMA guidance. It is the sole responsibility of the billing party to determine CPT codes. Any questions regarding coding should be directed to the paying party.

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