89550:ZINC (Zn), URINE

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89550:ZINC (Zn), URINE
Methodology: Inductively Coupled Plasma/Mass Spectrometry (ICP/MS)
Edit Date: 6/2/2009
Performed: Monday-Saturday
Released: 24-72 hours after setup at PeaceHealth Laboratories’ reference lab.
CPT Code: 84630-90
Specimen Collection Details
Collection: 24-hours or random urine in a plastic container. Refrigerate during collection, storage, and transport.
Handling: Record total volume and collection time on test requisition. Mix well and aliquot into two ARUP Trace Element-

free transport tubes, available from Client Services. Studies indicate that refrigeration alone of urine during and after collection preserves specimens adequately, if tested within 14 days.

Stability: 7 days ambient, 14 days refrigerated, or 1 year frozen.
Standard Volume: 10 mL urine.
Minimum Volume: 5 mL urine.
Transport: Refrigerated.
Rejection Criteria: Urine collected within 48 hours after administration of a gadolinium (Gd) containing contrast media (may occur with MRI studies); acid preserved urine.

Reference Range:
Components Reference Interval
Zinc, Urine 15-120 µg/dL
Zinc, Urine (24-hour) 150-1200 µg/d
Zinc per gram of creatinine No reference interval (µg/g crt)
Creatinine (24-hour) Male Female
3-8 years 140-700 mg/d 140-700 mg/d
9-12 years 300-1300 mg/d 300-1300 mg/d
13-17 years 500-2300 mg/d 400-1600 mg/d
18-50 years 1000-2500 mg/d 700-1600 mg/d
51-80 years 800-2100 mg/d 500-1400 mg/d
≥ 81 years 600-2000 mg/d 400-1300 mg/d
Zinc is predominantly eliminated in the feces. Elevated urine zinc may suggest excessive zinc supplementation but should be interpreted with a corresponding serum zinc concentration.

PeaceHealth Laboratories