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Lab Test Dictionary

Porphyrins Evaluation, Whole Blood (PEE)




Erythrocyte Porphyrin; Erythropoietic Protoporphyria (EPP); Free Erythrocyte Porphyrin (FEP); Protoporphyrin; RBC Porphyrins; Red Blood Cell Porphyrins; X-linked Dominant Protporphyria (XLDPP or XDP)

Specimen Type

Whole Blood

Performing Lab

Mayo Medical Lab

Epic ID

Other Reference Test

Lab Test Days

Monday-Friday; A.M.

Standard TAT

2-4 Days

Collection Information

Specimen Required

3-5 mL Whole Blood

Container Type

Dark Green (Sodium Heparin)

Collection Instructions

Whole blood collected in a lithium heparin (green-top) tube is also acceptable. Patient should abstain from alcohol for 24 hours prior to collection. Immediately place specimen on WET ICE after collection. Include a list of medications the patient is currently taking.

Processing Information - Lab Use Only

Transport Temperature


Specimen Stability

Room Temp: Unacceptable; Refrigerated: 7 Days; Frozen: Unacceptable

Rejection Criteria

Mild hemolysis

Test Volume Required

5 mL Whole Blood

Minimum Test Volume

3 mL Whole Blood

CPT Codes

84311, 82542