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Test Code
ZCRBC
Test Name
Zinc, Red Blood Cells
CPT Codes
84630
Expected Turnaround Time
2 - 4 days
Clinical Utility

Zinc is an essential trace element. Subnormal levels are associated with alcoholic cirrhosis, cystic fibrosis, myocardial infarction, acute and chronic infections. High levels may be due to industrial exposure.
Specimen and Container Info

Specimen Type: Red Blood Cells

  

Collection Container: Royal Blue Top (EDTA)

Desired Specimen Volume: 1 mL
Collection Instructions
  1. Collect specimen in royal blue (EDTA) via venipuncture.
Processing and Submission Instructions
  1. Separate plasma from cells within 45 minutes of collection.
  2. Discard the plasma.
  3. Using the original collection tube, submit only the red blood cells.
Transport Instructions

Transport to the laboratory refrigerated. 
Stability Requirements

Room Temperature

14 days

Refrigerated

14 days
Causes for Rejection
  • Plasma or serum submitted
Methodology
Inductively Coupled Plasma - Mass Spectrometry (ICP- MS)
Reference Intervals

See patient report.
Alternate Names
  • Zn RBC
Reference Lab
Labcorp Of America Holdings
Testing Schedule
Monday-Friday
The American Medical Association (AMA) Current Procedural Terminology (CPT) codes published by HNL Lab Medicine are guidelines and are intended for informational purposes only. CPT coding is the exclusive responsibility of the billing entity. View the Terms.
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