Zinc Protoporphyrin, (ZPP), Whole Blood

Abbrev Code:ZPPC   
Order Code:LAB1085Order Name:Zinc Protoporphyrin
Synonyms:ZPP, Clinical Monitoring
CPT Codes: 84202 x1
Turnaround Time:Specimens are sent to reference laboratory Mon-Sat; results are reported in 1-4 days.

Collection Instructions

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


Reference Range:0-69 umol ZPP/mol heme

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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