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Arsenic, Urine with Reflex to Fractionated

Mnemonic:    [U ARSENIC]
Name:    Arsenic, Urine with Reflex to Fractionated
Specimen:    10 mL aliquot from a 24 hour or random urine collection. Specimen must be collected in a plastic container and refrigerated during collection.

A 24-hour sample is preferred, but a random sample is also acceptable.

PATIENT PREPARATION: 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. Abstinence from iodine-containing medications or contrast agents for at least 1 month prior to collecting specimens for elemental testing is recommended.
Minimum Spec:    5 mL
Neonatal Spec:    5.0 mL
Transport Temp:    Refrigerated
Spec Stability:    Stable up to 2 weeks refrigerated.
Ref Lab/Code:    ARUP 0025000
  Method:    Inductively Coupled Plasma/ Mass Spectrometry
Note:    If total arsenic concentration is between 35-2000 ug/L, then Arsenic, Fractionated, will be added to determine the proportion of organic, inorganic, and methylated forms. Additional charges apply.
Processing Info:    Send 10 mL of urine sample in ARUP's Trace Element-Free Transport Tubes (clear w/blue caps).

Record total volume and collection time interval on the transport tubes.

Enter the SR TIME and SR VOLUME in PathNet. Have a tech verify this information.

Collection instructions for a 24 hour urine sample