The measurement of LVEF and initiation of recommended pharmacologic therapy for HF (angiotensin converting enzyme inhibitor [ACE-I] or angiotensin receptor blocker for ACE-I intolerant patients) has improved to 100%; provision of discharge instruction has improved from 50 to 94%; and the 30-day hospital readmission rate decreased from 40 to 27%. The gene discussed is ACE; the disease is hydrops fetalis.