Zinc

Message

Transfer separated plasma or serum to a plastic acid-washed or metal-free vial, Supply Item #721766.

Test Code

ZINC

Alias/See Also

945

CPT Codes
84630

Preferred Specimen

2 mL plasma collected in an EDTA or sodium heparin (royal blue-top) tube

Minimum Volume

0.7 mL

Other Acceptable Specimens

Serum collected in: No additive (royal blue-top) tube

Instructions

Separate plasma or serum from cells within 2 hours. Transfer separated plasma or serum to a plastic acid-washed or metal-free vial.

Transport Container

Plastic acid-washed or metal-free vial(s)

Transport Temperature

Room temperature

Specimen Stability

Room temperature: 5 days
Refrigerated: 10 days
Frozen: 30 days

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)

Hemolysis • Plasma/serum not separated from cells within 2 hours • Specimens submitted in non-trace element or non-acid washed container

Methodology
Inductively Coupled Plasma/Mass Spectrometry (ICP/MS)

FDA Status
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.

Setup Schedule

Set up: Mon-Sat; Report available: 1-2 days after receipt at the performing laboratory. Add two (2) days for transport.

Reference Range

≤5 Months	26-141 mcg/dL
6-11 Months	29-131 mcg/dL
12-23 Months	31-120 mcg/dL
2-3 Years	29-115 mcg/dL
4-5 Years	48-119 mcg/dL
6-9 Years	48-129 mcg/dL
10-13 Years	25-148 mcg/dL
14-17 Years	46-130 mcg/dL
Adult	60-130 mcg/dL

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.

Performing Laboratory
Quest Diagnostics Nichols Institute
14225 Newbrook Drive
Chantilly, VA 20153

Last Updated: February 5, 2024

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.