Question

Lead poisoning in the body can be removed by:

• A. EDTA in the form of calcium dihydrogen salt.
• B. Cis-platin
• C. Zeisse's salt.
• D. DMG

Answer 1

Answer: (A)

EDTA in the form of calcium dihydrogen salt.

Lead poisoning in the body can be removed by EDTA in the form of calcium dihydrogen salt. It is administered as an antidote for lead poisoning. EDTA coordinates with the lead ions in the body and is then excreted out of the body with out harmful effects. The calcium salt is used so that any excess EDTA will not remove calcium ions from the body. EDTA reduces the reactivity of a metal, preventing any unwanted effects that may result from its presence. EDTA is used in a salt form, most likely in disodium or calcium disodium EDTA.