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Test ID CRU Chromium, 24 Hour, Urine

Useful For

Screening for occupational exposure to chromium

 

Monitoring metallic prosthetic implant wear

Method Name

Dynamic Reaction Cell-Inductively Coupled Plasma-Mass Spectrometry (DRC-ICP-MS)

Reporting Name

Chromium, 24 Hr, U

Specimen Type

Urine


Specimen Required


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.

Collection Container/Tube: Clean, plastic urine container with no metal cap or glued insert

Submission Container/Tube: Plastic, 10-mL urine tube (T068) or clean, plastic aliquot container with no metal cap or glued insert

Specimen Volume: 10 mL

Collection Instructions:

1. Collect urine for 24 hours.

2. Refrigerate specimen within 4 hours of completion of 24-hour collection.

3. See Trace Metals Analysis Specimen Collection and Transport in Special Instructions for complete instructions.

Additional Information:

1. 24-Hour volume is required.

2. See Urine Preservatives-Collection and Transportation for 24-Hour Urine Specimens in Special Instructions for multiple collections.


Specimen Minimum Volume

0.4 mL

Specimen Stability Information

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

Reference Values

0-15 years: not established

≥16 years: 0.0-7.9 mcg/specimen

Day(s) and Time(s) Performed

Tuesday, Friday; Continuously

Performing Laboratory

Mayo Clinic Laboratories in Rochester

CPT Code Information

82495

LOINC Code Information

Test ID Test Order Name Order LOINC Value
CRU Chromium, 24 Hr, U 5624-2

 

Result ID Test Result Name Result LOINC Value
8593 Chromium, 24 Hr, U 5624-2
TM44 Collection Duration 13362-9
VL42 Urine Volume 3167-4
45492 Chromium Concentration 21201-9

Test Classification

This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. This test has not been cleared or approved by the U.S. Food and Drug Administration.

NY State Approved

Yes

Urine Preservative Collection Options

Note: The addition of preservative or application of temperature controls must occur within 4 hours of completion of the collection.

Ambient

OK

Refrigerate

Preferred

Frozen

OK

50% Acetic Acid

No

Boric Acid

No

Diazolidinyl Urea

No

6M Hydrochloric Acid

No

6M Nitric Acid

No

Sodium Carbonate

No

Thymol

No

Toluene

No