Lead ZPP Panel Industrial Exposure 
Mnemonic LEADZPPIND
CPT 84202, 83655†, 85018†
Test Code 8004042
Synonyms  
Test Includes Lead, ZPP
Specimen Whole Blood
Volume 3.0 mL whole blood
Container Lavender Top (EDTA) Tube
Special Instructions None required
Specimen Prep Send whole blood to the testing area. Do not process.
Storage Refrigerate
Transport Temp Room Temperature
Stability Rm Temp 14 days (30hrs for ZPP)
Stability Refrig 14 days
Stability Frozen DO NOT FREEZE
Methodology See individual tests
Rejection Criteria Lead Clotted. Samples collected in gel tubes. Plasma/Serum. Whole blood specimen submitted in an aliquot tube. ZPP Specimens not collected in EDTA. Clotted, frozen, or hemolyzed specimens 
Reference Value Lead Normal Range: < 5.0 µg/dL; Critical High: 0-18 years: >= 45 µg/dL; >18 years: >= 70 µg/dL Refer to the OSHA guidelines when blood lead level (BLL) is >=40 µg/dL ZPP Zinc Protoporphyrin, blood: 0-40 µg/dL Zinc Protoporphyrin ratio: 0-69 µmol ZPP/mol heme 
Performed/TAT Monday - Friday        
Comments Specimen contamination must be considered in the interpretation of elevated values. Elevated results should be confirmed with a second sample collected in a certified lead free tube (Royal blue top).