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Beaumont Laboratory

Zinc, RBC

RBC Zinc, Quest #6354, EPIC: LAB6452, SOFT: XZNCR

Specimen Collection Criteria

Collect: One Royal Blue-top EDTA tube.

Physician Office/Drawsite Specimen Preparation

Centrifuge to separate red blood cells from plasma within 2 hours of collection. Transfer red blood cells to a metal free plastic transport tube and refrigerate (2-8°C or 36-46°F). Discard the plasma.

Preparation for Courier Transport

Transport: 0.5 mL red blood cells, refrigerated (2-8°C or 36-46°F). (Min: 0.3 mL)

Rejection Criteria

  • Frozen specimens.
  • Specimens not collected and processed as indicated. 


Specimen Stability for Testing:

Room Temperature (20-26°C or 68-78.8°F): 7 days
Refrigerated (2-8°C or 36-46°F): 7 days
Frozen (-20°C/-4°F or below): Unacceptable

Specimen Storage in Department Prior to Disposal:

Specimen retention time is determined by the policy of the reference laboratory. Contact the Sendout Laboratory with any questions.


Sent to Quest Diagnostics Nichols Institute of Valencia, Valencia, CA.


Tuesday - Saturday.
Results available in 3-5 days.

Reference Range

9-14.7 mg/L.

Test Methodology

Inductively Coupled Plasma/Mass Spectrometry.

CPT Code


Test Codes

Quest #6354, EPIC: LAB6452, SOFT: XZNCR

Last Updated


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This directory currently reflects information only for specimens collected and/or processed at the Farmington Hills, Grosse Pointe, Royal Oak, and Troy campuses.