- ARSRF
Arsenic w/reflex to Fractionated, Random Urine
Specimen:
Test Code
ARSRF
Specimen Name
Arsenic w/reflex to Fractionated, Random Urine
Collect
Sterile Urine Cup
Submit
8 mLs (Min: 2 mLs) Urine Refrigerated
Special Handling
24-hour or random urine collection. Specimen must be collected in a plastic container and refrigerated during collection. ARUP studies indicate that refrigeration of urine alone, during and after collection, preserves specimens adequately if tested within 14 days of collection. Transfer an 8 mL aliquot from a well-mixed collection to a Trace Element-Free Transport Tubes.
Rejection Criteria
Acid preserved urine. Specimens collected within 72 hours after administration of iodinated or gadolinium-based contrast media. Specimens contaminated with blood or fecal material. Specimens transported in nontrace element-free transport tube (with the exception of the original device).
Stability
Ambient 1 week; Refrigerated 2 weeks; Frozen 2 months
Methodology
Quantitative High Performance Liquid Chromatography (HPLC) / Quantitative Inductively Coupled Plasma-Mass Spectrometry (ICP-MS)
Performed
Sunday - Saturday
Reported
2-7 days
CPT Codes
- 82175
- if reflexed
- add 82175
Components
—
Additional Information
Diet, medication, and nutritional supplements may introduce interfering substances. Patients should be encouraged to discontinue nutritional supplements, vitamins, minerals, nonessential over-the-counter medications (upon the advice of their physician), and avoid shellfish and seafood for 48 to 72 hours. High concentrations of iodine may interfere with elemental testing. Collection of urine specimens from patients receiving iodinated or gadolinium-based contrast media should be avoided for a minimum of 72 hours post exposure. Collection from patients with impaired kidney function should be avoided for a minimum of 14 days post contrast media exposure.
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Common Lab Definitions
- Serum
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