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Test Code CRWB Chromium, Blood


Ordering Guidance


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



Specimen Required


Container/Tube: Royal blue top (EDTA) Vacutainer plastic trace element blood collection tube

Specimen Volume: 1 mL

Collection Instructions:

1. See Metals Analysis Specimen Collection and Transport for complete instructions.

2. Send whole blood specimen in original tube. Do not aliquot.


Useful For

Monitoring exposure to chromium using whole blood specimens

 

Monitoring metallic prosthetic implant wear

Method Name

Inductively Coupled Plasma-Mass Spectrometry (ICP-MS)

Reporting Name

Chromium, B

Specimen Type

Whole blood

Specimen Minimum Volume

0.3 mL

Specimen Stability Information

Specimen Type Temperature Time Special Container
Whole blood Refrigerated (preferred) 28 days
  Ambient  28 days
  Frozen  28 days

Reject Due To

Gross hemolysis OK
Gross lipemia OK
Gross icterus OK
Microtainer Reject

Reference Values

0-17 years: Not established

≥18 years: <1.0 ng/mL

Interpretation

Results greater than the reference range indicate exposure to chromium (see Cautions about specimen collection).

 

Prosthesis wear is known to result in increased circulating concentration of metal ions. Increased blood trace element concentrations in the absence of corroborating clinical information do not independently predict prosthesis wear or failure.

Day(s) Performed

Tuesday, Wednesday, Friday

Report Available

1 to 4 days

Performing Laboratory

Mayo Clinic Laboratories in Rochester

CPT Code Information

82495

LOINC Code Information

Test ID Test Order Name Order LOINC Value
CRWB Chromium, B 5619-2

 

Result ID Test Result Name Result LOINC Value
65601 Chromium, B 5619-2