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Test Code GDU Gadolinium, 24 Hour, Urine

Reporting Name

Gadolinium, 24 Hr, U

Useful For

An aid in documenting past exposure to gadolinium-containing chelates

Performing Laboratory

Mayo Medical Laboratories in Rochester

Specimen Type

Urine

Specimen Required

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: 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.

Specimen Minimum Volume

0.4 mL

Specimen Stability Information

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

Reference Values

0-17 years: not established

≥18 years: <0.7 mcg/24 hour

Day(s) and Time(s) Performed

Thursday; 8 a.m.

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 In Process

 

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

Method Name

Inductively Coupled Plasma-Mass Spectrometry (ICP-MS)

Urine Preservative Collection Options

Ambient

Yes

Refrigerated

Preferred

Frozen

Yes

6N HCl

Yes

50% Acetic Acid

No

Na2CO3

No

Toluene

Yes

6N HNO3

Yes

Boric Acid

No

Thymol

No

Necessary Information

24-Hour volume is required.

Advisory Information

See Urine Preservatives in Special Instructions for multiple collections.