ZPP Industrial Exposure Whole blood 
Mnemonic ZPPIND
CPT 84202
Test Code  
Synonyms Zinc Protoporphyrin Industrial
Test Includes Zinc Protoporphyrin, Zinc Protoporphyrin (ZPP) Whole blood Ratio
Specimen Whole blood
Volume 1 mL
Container Lavender Top (EDTA) Tube
Special Instructions  
Specimen Prep  
Storage Refrigerate
Transport Temp Refrigerated
Stability Rm Temp 30 hours
Stability Refrig 5 weeks
Stability Frozen Unacceptable
Methodology Quantitative Hematofluorometry
Rejection Criteria Specimens not collected in EDTA. Clotted, frozen, or hemolyzed specimens 
Reference Value Zinc Protoporphyrin: Blood 0-40 µg/dL Zinc Protoporphyrin Ratio: 0-69µmol ZPP/mol heme  
Performed/TAT Monday - Friday   4 days    
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