Zinc Protoporphyrin, (ZPP), Whole Blood
| Abbrev Code: | ZPPC | ||
| Order Code: | LAB1085 | Order Name: | Zinc Protoporphyrin |
| Synonyms: | ZPP, Clinical Monitoring | ||
| Methodology: | Hematofluorometry | ||
| CPT Codes: | 84202 x1 | ||
| Turnaround Time: | Specimens are sent to reference laboratory Mon-Sat; results are reported in 1-4 days. | ||
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 specimens. |
Processing and Shipping
| Specimen Processing: | 1 mL, 0.2 mL minimum of 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: | 20605 |
Interpretive
| Reference Range: | 0-69 umol ZPP/mol heme |
| Use: |
A more specific test for free protoporphyrin is Porphyrins, Serum, Total. Elevated ZPP results are seen in both early and late iron deficiency, the anemia of chronic disease, and in chronic lead poisoning and erythropoietic protoporphyria. Causes of false elevations include markedly elevated bilirubin or riboflavin and hemolyzed, clotted or improperly aliquoted specimens.
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