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Chromium, Plasma

Test ID: CR P

Test

Method

HR-SF-ICP-MS

Platform

High Resolution Sector Field Inductively Coupled Mass Spectrometry

Report Includes

Chromium (µg/L); Chromium (nmol/L)

Specimens

Avoid gel separator tubes; Plasma (K2-EDTA)

Clinical Utility

Plasma Chromium concentrations can be used for nutritional assessment in patients on TPN. Plasma 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 plasma. Whole blood Chromium is recommended for monitoring following orthopedic arthroplasty.

Test Location

London Health Sciences Centre, 339 Windermere Road, London ON N6A 5A5

Test Version

3-Jan-2022

Specimen

Specimens

Avoid gel separator tubes; Plasma (K2-EDTA)

Collection Containers

Preferred

BD 6 ml K2-EDTA Royal Blue Vacutainer (Reference # 368381)

Sample Volume

3.0 mL

Minimum Volume

1.0 mL

Specimen Comment

Avoid gel separator tubes.

Collection & Handling

Collection Instructions

Collect in contaminant-free tube. Avoid hemolysis.

Handling Information

Separate as soon as possible and transfer plasma to polypropylene vial. Store and send cold.

Additional Information

Concentrations of chromium are higher in erythrocytes than in plasma. The results in plasma maybe falsely elevated if not separated within 30 m and/or hemolysis is present.

Stability

Ambient 22 days
Refrigerated 14 months
Frozen 14 months

Rejection Criteria

Hemolysis Visible

Test Version

3-Jan-2022

Performance / Interpretation

Method

HR-SF-ICP-MS

Platform

High Resolution Sector Field Inductively Coupled Mass Spectrometry

Turnaround Time

10 days

Results

Name Units Reference Range Conversion Factor
Chromium µg/L
  • 0.13 - 0.31
Chromium nmol/L
  • 2.5 - 6.0

Test Location

London Health Sciences Centre, 339 Windermere Road, London ON N6A 5A5

Test Version

3-Jan-2022

Interface / Setup

Test Version

3-Jan-2022