Hospitals hoping to attract patients and build goodwill are teaming up with medical-screening companies to promote tests they say might prevent deadly strokes or heart disease. What their promotions don't say is that an influential government panel recommends against many of the tests for people without symptoms or risk factors. The panel says such screenings find too few problems to outweigh the drawbacks, which include false positive results and unnecessary follow-up procedures and surgery. Other medical experts warn that the tests could needlessly raise health-care spending.
