Chromium, Blood

Message

Collection Instructions: 1. See Trace Metals Analysis Specimen
Collection and Transport in Special Instructions for complete
instructions. 2. Send specimen in original tube.

Test Code

CRWB

Alias/See Also

LAB3055,Chromium (Cr)

Cr (Chromium)

Preferred Specimen

1 mL whole Blood

Patient Preparation

High concentrations of gadolinium and iodine are known to interfere with most metals tests. If either gadolinium- or iodine-containing contrast media has been administered, a specimen should not be collected for 96 hours.

Minimum Volume

0.3 mL

Transport Container

Original collection tube

Transport Temperature

Refrigerated or Ambient

Specimen Stability

Refrigerated: 28 days Ambient: 28 days Frozen:28 days

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

Microtainer

Methodology

Inductively Coupled Plasma-Mass Spectrometry (ICP-MS)

Setup Schedule

Tuesday, Friday; Continuously

Report Available

1 day

Reference Range

0-17 years: not established

≥18 years: <1.0 ng/mL

Performing Laboratory
Mayo Clinic Laboratories 200 First Street SW Rochester, MN 55905

Last Updated: February 16, 2023

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.