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Order Code MISMA - GOKEY GDU Gadolinium, 24 Hour, Urine

Additional Codes

Mayo Test ID:  GDU

Reporting Name

Gadolinium, 24 Hr, U

Useful For

Assessing chronic exposure and monitoring effectiveness of dialysis in a 24-hour urine collection

Specimen Type

Urine


Advisory Information


 



Necessary Information


24-Hour volume is required.



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.

Supplies: Urine Tubes, 10 mL (T068)

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

Specimen Volume: 3 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: See Urine Preservatives-Collection and Transportation for 24-Hour Urine Specimens in Special Instructions for multiple collections.


Specimen Minimum Volume

0.3 mL

Specimen Stability Information

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

Reject Due To

Hemolysis

NA

Lipemia

NA

Icterus

NA

Other

NA

Reference Values

0-17 years: not established

≥18 years: <0.7 mcg/24 hour

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Day(s) and Time(s) Performed

Thursday; 8 a.m.

Method Name

Inductively Coupled Plasma-Mass Spectrometry (ICP-MS)

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.

CPT Code Information

83018

LOINC Code Information

Test ID Test Order Name Order LOINC Value
GDU Gadolinium, 24 Hr, U 8201-6

 

Result ID Test Result Name Result LOINC Value
29252 Gadolinium, 24 Hr, U 8201-6
TM101 Collection Duration 13362-9
VL82 Urine Volume 3167-4

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

Yes

Refrigerate

Preferred

Frozen

Yes

50% Acetic Acid

No

Boric Acid

No

Diazolidinyl Urea

No

6M Hydrochloric Acid

Yes

6M Nitric Acid

Yes

Sodium Carbonate

No

Thymol

No

Toluene

Yes