DHS Recommends Lead Tests for Young Children News | January 18, 2024 | 0 | by Morgan McCarthy Blood lead tests are being recommended for all Wisconsin children between one- and two-years-old. The Wisconsin Department of Health Services says in a press release that kids older than three and younger than five who haven’t already been tested, should be. DHS says lead poisoning can cause irreversible damage to a developing brain, which affects future behaviors and learning. The department says lead poisoning is still a serious public threat in the state, despite the progress made in the past decades.