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Test ID ZNU Zinc, 24 Hour, Urine

Useful For

Identifying the cause of abnormal serum zinc concentrations using a 24-hour urine specimen

Method Name

Inductively Coupled Plasma-Mass Spectrometry (ICP-MS)

Reporting Name

Zinc, 24 Hr, U

Specimen Type

Urine


Advisory Information


See Urine Preservatives in Special Instructions for multiple collections.



Necessary Information


24-Hour volume is required.



Specimen Required


Patient Preparation: High concentrations of barium are known to interfere with this test. If barium-containing contrast media has been administered, a specimen should not be collected for 96 hours.

Supplies: Urine Tubes, 10 mL (T068)

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

Submission Container/Tube: Plastic 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: ≤967 mcg/24 hours

Day(s) and Time(s) Performed

Tuesday, Thursday; 8 a.m.

Performing Laboratory

Mayo Medical Laboratories in Rochester

CPT Code Information

84630

LOINC Code Information

Test ID Test Order Name Order LOINC Value
ZNU Zinc, 24 Hr, U 5765-3

 

Result ID Test Result Name Result LOINC Value
8591 Zinc, 24 Hr, U 5765-3
TM8 Collection Duration 13362-9
VL5 Urine Volume 3167-4

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.

Urine Preservative Collection Options

Ambient

Yes

Refrigerated

Preferred

Frozen

Yes

6N HCl

Yes

50% Acetic Acid

Yes

Na2CO3

No

Toluene

Yes

6N HNO3

Yes

Boric Acid

No

Thymol

No