Mercury, Random Urine

Casandra

Casandra Test Code AR88924Version 1 (DRAFT)

Performing Lab

Lab ARUP LaboratoriesLab Test ID 2011481CPT Code 83825

Mercury, Random Urine

Also known as: U MERCRAND

Clinical Use

Order Test

Use

The Mercury, Random Urine test is useful in assessing acute or chronic elemental or inorganic mercury exposure and can be utilized in monitoring chelation therapy. Acute exposure is more accurately assessed with Mercury, Whole Blood. This urine test predominantly reflects exposure and is valuable when confirming suspected mercury toxicity.

Special Instructions

Not provided.

Limitations

Results may be affected by skin or collection-related contamination, particularly if trace element-free containers are not used. Elevated results suspected to be due to contamination should be confirmed with a new specimen collected in certified trace element-free containers.

Test Details

New York Approved

Methodology

Mass Spectrometry

Biomarkers

LOINC Codes

Order Codes

13465-0 - Mercury/Creat Ur
30921-1 - Mercury ?Tm Ur-mCnc
35674-1 - Creat ?Tm Ur-mCnc

Result Codes

35674-1 - Creat ?Tm Ur-mCnc
30921-1 - Mercury ?Tm Ur-mCnc
13465-0 - Mercury/Creat Ur

Result Turnaround Time

1-5 days

Specimen

Urine

Volume

8 mL

Minimum Volume

1 mL

Container

ARUP Trace Element-Free Transport Tubes

Collection Instructions

Collect as a random urine sample. Transfer an 8 mL aliquot from a well-mixed collection to ARUP Trace Element-Free Transport Tubes.

Patient Preparation

Patients should discontinue nutritional supplements, vitamins, minerals, nonessential over-the-counter medications, and avoid shellfish and seafood 48 to 72 hours prior to collection. Avoid urine collection within 72 hours post-iodinated or gadolinium-based contrast media exposure, and 14 days for patients with impaired renal function post-exposure.

Storage Instructions

Refrigerated. Also acceptable: Room temperature or frozen.

Causes for Rejection

Urine collected within 72 hours after administration of iodinated or gadolinium-based contrast media, acid-preserved urine, specimens contaminated with blood or fecal material, specimens not transported in trace element-free transport tubes.