An **arsenic test** is a diagnostic laboratory procedure used to measure the concentration of toxic arsenic levels in the body. Healthcare providers typically order a 24-hour or spot **urine test** as the most reliable indicator of recent exposure, as inorganic arsenic clears rapidly from the bloodstream. **Blood tests** detect acute, immediate toxicity, while **hair and nail samples** reveal chronic exposure over preceding months.
Clinicians utilize these tests for individuals experiencing unexplained symptoms like abdominal pain, neuropathy, or skin changes, as well as those exposed to contaminated well water or industrial hazards.