Arsenic
Label Mnemonic: ARS
Epic Lab Code: LAB2619
Downtime Form: A-1a Miscellaneous Request
Commercial Mail-out Laboratory
5231 RCP
356-8593
Specimen(s):
Blood
Specimen Instructions:
Patient Preparation: Diet, medication, and nutritional supplements may introduce interfering substances. Patient should be encouraged to discontinue nutritional supplements, vitamins, minerals, and non- essential over-the-counter medications (upon the advice of their physician) and avoid shellfish and seafood for 48 to 72 hours.
Collection Medium:
Royal Blue K2 EDTA tube
Minimum:
7 mL whole blood
Absolute Minimum: 0.5 mL whole blood
Rejection Criteria:
Heparin anticoagulant. Frozen specimens.
Turn Around Time:
1-3 days upon receipt at reference laboratory
Reference Range:
0.0-13.0 μg/L
Interpretive Data:
Potentially toxic ranges for blood arsenic: greater than or equal to 600 μg/L.

Blood arsenic is for the detection of recent exposure poisoning only. Blood arsenic levels in healthy subjects vary considerably with exposure to arsenic in the diet and the environment. A 24-hour urine arsenic is useful for the detection of chronic exposure.
Methodology:
Quantitative Inductively Coupled Plasma-Mass Spectrometry
CPT Code:
82175