Zinc, RBC
Also known as: RBC Zinc
Use
This test measures zinc concentration within red blood cells, offering a more accurate reflection of long‑term intracellular zinc status compared to serum zinc; useful for identifying and monitoring zinc exposure (industrial, dietary, or accidental) and assessing overall health status and treatment response.
Special Instructions
Not provided.
Limitations
Not provided.
Methodology
Mass Spectrometry
Biomarkers
Result Turnaround Time
Not provided.
Related Documents
For more information, please review the documents below
Specimen
Whole Blood
Volume
0.5 mL red blood cells
Minimum Volume
0.3 mL
Container
EDTA trace metal‑free (royal blue‑top) tube or sodium heparin trace metal‑free (royal blue‑top) tube or sodium heparin lead‑free (tan‑top) or sodium/lithium heparin (green‑top) tubes
Collection Instructions
Centrifuge to separate plasma, discard plasma, transfer RBCs to a plastic trace element/metal‑free vial or transfer vial from a Quest trace element kit; label "Packed RBCs"; use royal blue‑top trace metal tube with EDTA or sodium heparin for RBC trace metal testing
Patient Preparation
Carefully clean skin prior to venipuncture; avoid hemolysis; avoid worksite collection
Causes for Rejection
Hemolysis; clotted specimens
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | Room temperature: 7 days |
| Refrigerated | 10 days |