Commercial Mail-out Laboratory
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.
|Royal Blue K2 EDTA tube
7 mL whole blood
Absolute Minimum: 0.5 mL whole blood
Specimens collected in tubes other than Royal Blue (EDTA). Specimens
transported in containers other than Royal Blue (EDTA) tube or Trace
Element-Free Transport Tube. Heparin anticoagulant. Clotted specimens.
1-3 days upon receipt at reference laboratory
Elevated results may be due to skin or collection-related
contamination, including the use of a noncertified metal-free
collection/transport tube. If contamination concerns exist due to
elevated levels of blood arsenic, confirmation with a second specimen
collected in a certified metal-free tube is recommended.
Potentially toxic ranges for blood arsenic: greater than or equal to
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.
Quantitative Inductively Coupled Plasma-Mass Spectrometry