I still think that the PKU test can vary from state to state so just becuase the one in IOWA is OK at 24 hours, each person should check with their state health department for details. -- **************************************************** * Deena Zimmerman MD MPH * * Department of Pediatrics * * UMDNJ-Robert Wood Johnson Medical School * * 1 RWJ Place * * New Brunswick, NJ 08903 * * * * phone (908) 235-7248 * * fax (908) 235-7345 * * email [log in to unmask] (internet) * ****************************************************