Zinc, RBC : 6354

Test Code

ZINCRB or 6354

CPT Codes
84630

Instructions

Red Blood Cells Trace Metal: Use the royal blue-top trace metal evacuated tube with EDTA or sodium heparin, for RBC trace metal testing.

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 Container

Preferred Specimen
0.5 mL red blood cells collected in an EDTA trace metal-free (royal blue-top) tube

Alternative Specimens
Red blood cells collected in: EDTA (lavender-top), sodium heparin trace metal-free (royal blue-top), sodium heparin (green-top), sodium heparin lead-free (tan-top), or lithium (green-top) tube

Minimum Volume

0.3 mL

Transport Temperature

Room temperature.

Specimen Stability

Room temperature: 7 days; Refrigerated: 10 days; Frozen: Unacceptable

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

Moderate hemolysis; Clotted

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

Setup Schedule

Monday - Saturday

Report Available

2-4 days

Reference Range

9.0-14.7 mg/L

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
med fusion

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.