Question

What is the most critical effect of lead exposure, especially in children?

• A. Impaired neurodevelopment
• B. Bone deformities
• C. Respiratory problems
• D. Skin rashes

Answer 1

Answer:

A. Impaired neurodevelopment

• Lead is a well-known neurotoxin. Impairment of neurodevelopment in children is the most critical effect. Exposure in utero, during breastfeeding and in early childhood may all be responsible for the effects.

• Lead accumulates in the skeleton, and its mobilization from bones during pregnancy and lactation causes exposure to fetuses and breastfed infants. Hence, the lifetime exposure of woman before pregnancy is important.