Toxicological screenings can be performed using various biological matrices, each offering unique advantages. Common samples include:
Blood: Offers a snapshot of current exposure and is useful for detecting recent intake of toxic substances. Urine: Provides a longer detection window for many substances compared to blood. Hair: Can reflect drug or toxin exposure over several months, making it useful for assessing long-term exposure. Tissue: Typically used in post-mortem autopsy investigations to determine cause of death.
