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| A B C D E F G H I J K L M N O P Q R S T U V W X Y Z # |
Zinc Protoporphyrin (ZPP)
Test Code948
CPT Codes
84202
Preferred Specimen
2 mL whole blood collected in a (tan-top) tube - protect from light
Minimum Volume
0.5 mL (0.2 mL Pediatric)
Other Acceptable Specimens
Whole blood collected in: EDTA (royal blue-top) tube - protect from light, sodium heparin (royal blue-top) tube - protect from light, sodium or lithium heparin (green-top) tube - protect from light, sodium heparin lead-free (tan-top) tube - protect from light
Instructions
Use a lead-free tube if a blood lead is also requested. Specimen should be foil wrapped. Protect from light.
Transport Temperature
Room temperature
Specimen Stability
Room temperature: 4 days
Refrigerated: 10 days
Frozen: Unacceptable
Refrigerated: 10 days
Frozen: Unacceptable
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Hemolysis • Received frozen • Clotted • EDTA (lavender-top) tube • Not protected from light
Methodology
Hematofluorometry
FDA Status
This test was developed and its analytical performance characteristics have been determined by Quest Diagnostics. It has not been cleared or approved by the U.S. Food and Drug Administration. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.
Setup Schedule
Set up: Mon-Sat; Report available: 1-2 days
Limitations
Aluminum and anemia of chronic disease may cause elevated results.
Reference Range
| Industrial Exposure | <100 mcg/dL |
Clinical Significance
Zinc protoporphyrin (ZPP) accumulates in erythrocytes as a result of chronic lead absorption or iron deficiency anemia.
Performing Laboratory
Quest Diagnostics Nichols Institute
14225 Newbrook Drive
Chantilly, VA 20153
