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Specimen Collection Manual and Test Catalog

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ZINC, RBC

Geisinger Epic Procedure Code:  LAB1194    Geisinger Epic ID:  52701

SPECIMEN COLLECTION
Specimen type: 

Red blood cells


Preferred collection container: 
Alternate collection container: 
3 mL lavender-top (K2 EDTA) tube
4 mL green/green-top (sodium heparin) tube
Specimen required: 

0.5 mL red blood cells; minimum 0.3 mL.


Special notes: 

Carefully clean skin prior to venipuncture. Avoid hemolysis.



SPECIMEN PROCESSING
Processing instructions: 

Packed Cells: Centrifuge to separate plasma from RBC's and discard plasma. Transfer RBC's to a plastic transfer vial from a Quest Diagnostics (trace element and metal free) collection kit or transfer to a plastic screw cap vial.


Transport temperature: 

Room temperature.


Specimen stability: 

Room temperature: 7 days. Refrigerated: 7 days. Frozen: Unacceptable.


Rejection criteria: 

Clotted • Moderate hemolysis



TEST DETAILS
Additional information: 

This test was developed and its analytical performance characteristics have been determined by Quest Diagnostics. It has not been cleared or approved by the U.S. Food and Drug Administration. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.


CPT code(s):  84630
Note: The billing party has sole responsibility for CPT coding.  Any questions regarding coding should be directed to the payer being billed.
The CPT codes provided by GML are based on AMA guidelines and are for informational purposes only.

Methodology: 
Inductively Coupled Plasma-Mass Spectrometry
Synonyms: 

Quest test code 6354; Zinc, RBC


Clinical significance: 

Zinc is an essential element involved in a myriad of enzyme systems including wound healing, immune function, and fetal development. Zinc measurements are used to detect and monitor industrial, dietary, and accidental exposure to zinc. Also, Zinc measurements may be used to evaluate health and monitor response to treatment.


Review Date:  12/09/2024

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