Zinc, 24 Hour Urine with Creatinine

Test Code
4436

CPT Codes
84630

Preferred Specimen
7 mL of a preserved 24-hour urine submitted in a plastic, acid-washed metal-free, leak-proof container

Patient Preparation
Patient should refrain from taking vitamins or mineral supplements for at least 3 days before specimen collection.

Minimum Volume
5 mL

Instructions
Please specify on the request form and on the urine container the total 24-hour urine volume.
Urine preserved with 30 mL 50% Acetic Acid (alternate preservative is 6N HCl), (supplied by Quest Diagnostics). Transport specimen at room temperature, refrigerated, or frozen on dry ice to the laboratory.

Transport Temperature
Refrigerated (cold packs)

Specimen Stability
Room temperature: 5 days
Refrigerated: 5 days
Frozen: 14 days

Methodology
Inductively Coupled Plasma-Mass Spectrometry (ICP-MS)

FDA Status
This test was developed and its analytical performance characteristics have been determined by Quest Diagnostics. It has not been cleared or approved by the U.S. Food and Drug Administration. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.

Setup Schedule
Set up: Tues-Sat p.m.; Report available: Next day

Reference Range
75-530 mcg/L

Performing Laboratory
Quest Diagnostics Nichols Institute
14225 Newbrook Drive
Chantilly, VA 20153



The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.