"When the pediatrician recommended Lisa Pascoe have her then-toddler tested for lead poisoning, she thought there was no way he could be at risk. Everything in her St. Louis, Mo., home had been remodeled.

But then the nurse called to say her son's blood lead level was dangerously high — five times the level federal health officials then deemed elevated.

Pascoe said she was "completely shocked."

"After you hang up on the phone, you kind of go through this process of 'Oh my gosh, my kid is lead poisoned. What does that mean? What do I do?'" she said."

Niara Savage and Allison Kite report for NPR May 2, 2022. [2]