Mercury
Order Code: HGU
Epic Lab Code: LAB408
Order Form: A-1a Miscellaneous Request or Epic Req
Commercial Mail-out Laboratory
6240 RCP
356-3527
Specimen:
Collection Medium:
Urine - 24 hour/timed plastic urine container
Minimum:
Preferred Minimum: 8 mL aliquot from a well-mixed collection
Absolute Minimum: 1 mL aliquot from a well-mixed collection

24 hr or random urine collection in a plastic bottle; refrigerate during collection.
Rejection Criteria:
Urine collected within 48 hours after administration of a gadolinium (Gd) containing contrast media (may occur with MRI studies). Acid preserved urine.
Specimen Instructions:
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.

Specimen must be collected in a plastic container and should be refrigerated during collection. Studies indicate that refrigeration of urine alone, during and after collection, preserves specimens adequately, if tested within 14 days of collection.
Analytic Time:
4 days upon receipt at reference laboratory
Reference Range:
COMPONENTS REFERENCE INTERVAL Mercury, Urine 0-10 ug/L Mercury, Urine (24-Hour) 0-15 ug/d Mercury per gram of creatinine Less than or equal to 35 μg/g CR Creatinine (24-hour) mg/dL Male Female 3-8 yrs: 140-700 3-8 yrs: 140-700 9-12 yrs: 300-1300 9-12 yrs: 300-1300 13-17 yrs: 500-2300 13-17 yrs: 400-1600 18-50 yrs: 1000-2500 18-50 yrs: 700-1600 51-80 yrs: 800-2100 51-80 yrs: 500-1400 81 yrs+: 600-2000 81 yrs+: 400- 1300
Interpretive Data:
Urine mercury concentration may correlate better with inorganic mercury exposure than blood concentrations since organic mercury is eliminated primarily in the feces. Urine mercury levels may also be used to monitor chelation therapy.
Comments:
Record total volume and collection time interval on transport tube and on test request form. Stability: Mercury is volatile; concentration may reduce after seven days or more storage.
Methodology:
Inductively Coupled Plasma/Mass Spectrometry
CPT Code:
83825