Lab Test

Mercury, Urine

Urine Mercury, ARUP #25050, EPIC: LAB6098, SOFT: XHGU

Test Codes

ARUP #25050, EPIC: LAB6098, SOFT: XHGU

Instructions

  • A Urine Creatinine test is performed on each sample.
  • Please refer to the Specimen Collection Manual for instructions on 24 Hour Urine Collection:
  • Diet, medication, and nutritional supplements may introduce interfering substances. Patients should be encouraged to discontinue nutritional supplements, vitamins, minerals, non-essential 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. Abstinence from iodine-containing medications or contrast agents for at least 1 month prior to collecting specimens for elemental testing is recommended.
  • Urine collected within 48 hours after administration of a gadolinium (Gd) containing contrast media (may occur with MRI studies) will not be tested.

Specimen Collection Criteria

Collect (preferred specimen): 24 hour urine sample with no preservative.
Also acceptable: Random urine specimen in a screw-capped container (preferred) or other sterile collection cup. (Minimum: 1.0 mL)

  • Keep 24 hour urine specimen iced or refrigerated during collection.
  • Include start and end dates and times for the collection period on the specimen container.
Urine Preservative Options
No Preservative
6N Hydrochloric Acid
Boric Acid (10g)
Sodium Carbonate
50% Acetic Acid
Required
NO
NO
NO
NO

Physician Office/Draw Specimen Preparation

Maintain specimens refrigerated (2-8°C or 36-46°F) prior to transport.

Preparation for Courier Transport

Transport: Entire 24 hour urine collection, or random urine, refrigerated (2-8°C or 36-46°F).

Rejection Criteria

  • Specimens not collected and processed as indicated.

In-Lab Processing

Measure total volume of the 24 hour urine specimen. Record total volume and collection start and end dates and times in the LIS system. Aliquot 8.0 mL from the well-mixed 24 hour urine collection or random urine into a metal-free transport tube. (Minimum: 1.0 mL)

Storage

Specimen Stability for Testing:

Room Temperature (20-26°C or 68-78.8°F): 7 days
Refrigerated (2-8°C or 36-46°F): 14 days
Frozen (-20°C/-4°F or below): 1 year

Specimen Storage in Department Prior to Disposal:

Specimen retention time is determined by the policy of the reference laboratory. Contact the Sendout Laboratory with any questions.

Laboratory

Sent to ARUP Laboratories, Salt Lake City, UT.

Performed

Sunday – Saturday.
Results available in 2-5 days.

Reference Range

By report.

Test Methodology

Quantitative Inductively Coupled Plasma/Mass Spectrometry.

Interpretation

Urine mercury levels for healthy subjects (reference population) are influenced by diet and environmental background exposure. Urine mercury levels up to 50 mcg/L can result from seafood diets, primarily methylmercury, without any clinical evidence of toxicity.

Clinical Utility

This assay monitors mercury exposure (primarily inorganic mercury).

CPT Codes

83825

Contacts

Last Updated

10/23/2019

Microtainer® and Vacutainer® are registered trademarks of Becton, Dickinson and Company.
UroVysion® is a registered trademark of Abbott Laboratories. ThinPrep® is a registered trademark of Hologic, Incorporated.

 

This directory currently reflects information only for specimens collected and/or processed at the
Farmington Hills, Grosse Pointe, Royal Oak, and Troy campuses.