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By Linda A. Johnson The Associated Press

Tests for lead poisoning may be faulty, US regulators warn

U.S. health agencies on Wednesday warned that certain blood tests for lead poisoning may give results lower than the actual level of lead.

As a result, some children under 6, along with pregnant and nursing women, may need retesting, the Food and Drug Administration and Centers for Disease Control and Prevention said.

FDA issues warning about risky vein opening procedure

TRENTON, N.J. — The Food and Drug Administration on Wednesday again warned patients and doctors to avoid a risky, experimental procedure promoted as a treatment for several nervous system disorders, including multiple sclerosis and Parkinson’s disease.

The procedure involves inflating a tiny balloon in narrowed veins, usually in the neck, to widen them and improve blood flow.