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Labcorp Oklahoma, Inc.
Test Directory


Zinc Protoporphyrin (ZPP), Blood

Order Name ZPP REF
Test Number: 3603835
Revision Date 04/20/2022
Test Name Methodology LOINC Code
Zinc Protoporphyrin (ZPP), Blood
Hematofluorometry (H) 29763-0 
Specimen Specimen Volume (min) Specimen Type Specimen Container Transport Environment
Preferred 1 mL (0.2) EDTA Whole Blood Royal Blue - EDTA (Trace Element Free) Refrigerated
Alternate 1 1 mL (0.2) EDTA Whole Blood EDTA (Lavender Top) Refrigerated
Instructions Due to nationwide shortages of some phlebotomy tubes specified for trace element testing, ARUP Laboratories is currently accepting lavender (EDTA) tubes as alternative collection tubes. Please submit the original blood collection tube. Whole blood in a pour off tube is NOT acceptable.

Specimens No-Longer Need to be Protected from Light.
Unacceptable Conditions: Specimens not collected in EDTA. Clotted, frozen, or hemolyzed specimens.
Stability: Ambient: 30 hours; Refrigerated: 5 weeks; Frozen: Unacceptable
Testing Schedule Mon-Fri 
Expected TAT 2-5 Days  
Clinical Use Exposure Monitoring 
CPT Code(s) 84202
Lab Section Reference Lab