Test Overview
Clinical Utility
Serum Chromium concentrations can be used for nutritional assessment in patients on TPN. Serum concentration reflects day-to-day Chromium variations. The measurement of Chromium in erythrocytes provides a better index of body content than the measurement of Chromium in serum. Whole blood Chromium is recommended for monitoring following orthopedic arthroplasty.
Method
Inductively coupled plasma-triple quadrupole mass spectrometry (ICP-TripleQ MS)
Result Included
Chromium
Specimen
Specimen Type
SerumContainers
Preferred Containers
BD 6 ml Non Additive Royal Blue Vacutainer (Reference # 368380)
Volume
Sample Volume
2 mL
Collection & Handling
Collection Instructions
Collect serum in contaminant-free tube with clot-activator. Avoid hemolysis.
Handling Information
Separate as soon as possible and transfer serum to polypropylene vial. Store and send cold.
Additional Information
Concentrations of chromium are higher in erythrocytes than in serum. The results in serum may be falsely elevated if not separated within 30 m and/or hemolysis is present.
Rejection Criteria
| Criteria | Specification |
|---|---|
| Hemolysis | Visible |
Performance & Interpretation
Turnaround Time
10 days
Results
-
Chromiumnmol/L1.9 - 3.8ng/L x 0.0192
Referral Location
Canada
Test Version
Last Updated
2019-09-30