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Test Code LAB10449 Zinc Protoporphyrin, Blood

Useful For

Evaluating iron deficiency

 

Monitoring treatment and environmental intervention of chronic lead poisoning

Method Name

Hematofluorometry

Reporting Name

Zinc Protoporphyrin, B

Specimen Type

Whole blood


Specimen Required


Patient Preparation:

High concentrations of gadolinium and iodine are known to interfere with most metals tests. If either gadolinium- or iodine-containing contrast media has been administered, a specimen should not be collected for 96 hours.

Supplies:

Metal Free B-D Tube (EDTA), 6 mL (T183)

Metal Free (Lead only) EDTA Tube, 3 mL (T615)

Microtainer (EDTA) Tube, 0.5 mL (T174)

If ordering the EDTA trace element Vacutainer tube from BD, order catalog #368381.

Container/Tube:

Preferred: Royal blue-top BD Vacutainer Plus with EDTA blood collection tube (T183)

Acceptable: Tan-top (lead only) BD Vacutainer Plus with EDTA blood collection tube (T615) or BD Microtainer with EDTA (T174) or royal blue-top Monoject trace element blood collection tube

Specimen Volume: 1 mL

Collection Instructions:

1. See Trace Metals Analysis Specimen Collection and Transport in Special Instructions for complete instructions.

2. Send specimen in original tube.


Specimen Minimum Volume

0.3 mL

Specimen Stability Information

Specimen Type Temperature Time
Whole blood Refrigerated 28 days

Reject Due To

Hemolysis

Mild reject; Gross reject

Lipemia

Mild reject; Gross reject

Icterus

NA

Other

Heparin

Reference Values

<70 mcmol ZPP/mol heme

Day(s) and Time(s) Performed

Monday through Friday; 5 pm

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Test Classification

This test has been modified from the manufacturer's instructions. Its performance characteristics were determined by Mayo Clinic in a manner consistent with CLIA requirements. This test has not been cleared or approved by the U.S. Food and Drug Administration.

CPT Code Information

84202

LOINC Code Information

Test ID Test Order Name Order LOINC Value
NEZPP Zinc Protoporphyrin, B 29763-0

 

Result ID Test Result Name Result LOINC Value
300009 Zinc Protoporphyrin, B 29763-0

Forms

1. Lead/Heavy Metals Reporting Form (T491) in Special Instructions

2. If not ordering electronically, complete, print, and send a Benign Hematology Test Request Form (T755) with the specimen.