Erythrocyte Porphyrin (EP), Whole Blood

Message

*Protect specimen from light, wrap in foil and bring to processing.

Test Code

39777

Alias/See Also

LAB1084

CPT Codes
84202

Preferred Specimen

1 mL whole blood collected in an EDTA (royal-blue top) tube, EDTA (lavender-top) tube, K2 EDTA (pink-top) tube, or K2 EDTA (tan-top) tube

Minimum Volume

0.5 mL

Instructions

Transfer 1 mL whole blood to an amber transport tube. Protect from light during collection, storage, and shipment.

Note: Use royal-blue top tube when also testing for lead. Specimen should be tested for lead first to avoid potential contamination problems.

Transport Container

Amber transport tube

Transport Temperature

Refrigerated (cold packs)

Specimen Stability

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

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)

Specimens not collected in EDTA • Clotted specimens

Methodology
Fluorometry

FDA Status
This test was developed and its performance characteristics determined by ARUP Laboratories. The U.S. Food and Drug Administration has not approved or cleared this test; however, FDA clearance or approval is not currently required for clinical use. The results are not intended to be used as the sole means for clinical diagnosis or patient management decisions.

Setup Schedule

Mon, wed, sat

Report Available

2-6 days

Reference Range

0-35 ug/dL

Clinical Significance

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

Performing Laboratory

A.R.U.P. , Inc.

500 Chipeta Way

Salt Lake City, UT 84108-1221

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.