Zinc Protoporphyrin, Whole Blood Industrial
| Abbrev Code: | ARMISC | ||
| Order Code: | LAB4909 | Order Name: | Zinc Protoporphyrin Occupational |
| Methodology: | Hematofluorometry | ||
| CPT Codes: | 84202 x1 | ||
| Turnaround Time: | Specimens are sent to the reference laboratory Mon-Sat; results are reported within 2-5 days. | ||
| Special Instructions: | Specimen should be tested for lead first to avoid potential contamination problems. | ||
Collection Instructions
| Specimen: | Blood |
| Optimal Volume: | 1 mL |
| Minimum\Peds Volume: | 0.2 mL |
| Container: | Trace Element, EDTA (DE) Alternate Containers: Purple (EDTA) |
| Causes for Rejection: | Frozen, hemolyzed or clotted specimen. |
Processing and Shipping
| Specimen Processing: | Aliquot 1 mL, 0.2 mL minimum whole blood. Store in refrigerator. |
| Shipping Instructions: | Ship at refrigerated temperature. |
| Stability: | 30 hours at room temperature; 5 weeks refrigerated; unacceptable frozen. |
| Test Performed at or Referral Lab | Lab Sendouts (ARUP) |
| Referral Lab number: | 20614 |
Interpretive
| Reference Range: |
For occupational exposure to lead, OSHA requires ZPP whole blood concentration to be reported in units of µg/dL. For adults, conversion of ZPP to units of µg/dL assumes a hematocrit of 45%.
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| Use: | Elevated ZPP results are seen in both early and late iron deficiency, the anemia of chronic disease erythropoietic protoporphyria, and chronic lead poisoning. Causes for false elevations include markedly elevated bilirubin or riboflavin, and hemolyzed, clotted or improperly aliquoted specimens. |
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