Study casts doubt on new blood tests
(AP)


<p><a href="http://us.rd.yahoo.com/dailynews/rss/health/*http://news.yahoo.com/s/ap/20061220/ap_on_he_me/blood_tests"><img src="http://d.yimg.com/us.yimg.com/p/net/20061221/capt.b266fe37370d0af10cfd1b2997ef1ed9.jpg?x=62&y=130&sig=y9XGO2_ezitchk_z2WGCnw--" align="left" height="130" width="62" alt="**FILE PHOTO** Samples of blood are tested at the Utah Public Heath Laboratory, May 20, 2004, in Salt Lake City. (AP Photo/Douglas C. Pizac)" border="0" /></a>AP - New blood tests that doctors hoped would more accurately predict which patients are headed for a heart attack or stroke are no better than cholesterol levels, blood pressure and other conventional measurements, a study found.</p><br clear="all"/>