Test Overview
Test Methodology

Triple-Quadrapole Inductively Coupled Plasma Mass Spectrometry

Test Usage

Identify cause of abnormal serum zinc level.

Reference Range *

0-17 yrs: not established; >or=18 yrs: 109 - 1476 mcg/24h

* Reference ranges may change over time. Please refer to the original patient report when evaluating results.

Test Details
Days Set Up
Monday, Thursday
Analytic Time

3 - 6 days

Soft Order Code
ZN-U
MiChart Code
Zinc, Urine
Synonyms
  • Zn, Urine
Laboratory
Sendout
Reference Laboratory
Mayo ZNU (8591)
Section
Special Testing
Specimen Requirements
Collection Instructions

Collect 24 hour urine in a clean, plastic container with no metal cap or glued insert and no preservative. Aliquot urine into a clean, plastic container with no metal cap or glued insert and refrigerate within 4 hours of completion of collection. Record 24 hour urine volume and collection dates/times on the request form. Collection must take place prior to, or 96 hours after administering barium-containing contrast media.

Special Handling

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

Contraindications
Do not collect specimens from patients who have received gadolinium within the past 48 hours. Gadolinium, a material contained in some contrast media, is known to interfere with most metals tests.
Normal Volume
10 mL aliquot of 24 hour urine collection
Minimum Volume
0.5 mL aliquot of 24 hour urine collection
Storage Temperature
Refrigerated is preferred, ambient and frozen are acceptable
Additional Information

Test sent to Mayo Clinic Laboratories

Billing
CPT Code
84630
Fee Code
22190
NY State Approved
No