What method is commonly used to eliminate heavy metals like lead from the body?

Chelation is the most effective method commonly used to eliminate heavy metals, such as lead, from the body. This process involves the administration of specific substances called chelating agents, which bind to heavy metals in the bloodstream, forming complexes that can be excreted through the kidneys in urine. The chelating agents effectively remove the metals from tissues and organs, thereby reducing the toxic burden on the body.

In contrast, gastric lavage is primarily used to remove substances from the stomach in cases of poisoning or overdose but is not effective for heavy metal detoxification. Dialysis can remove certain toxins from the blood but is not specifically designed for heavy metals and is typically reserved for patients with renal failure or other specific indications. Bowel irrigation may assist in clearing gastrointestinal contents but does not effectively target heavy metal removal from the systemic circulation.