Table 1.

Identifying Rules and their triggers.

History Rule	IF a past history of CHF was recorded in the Problem List or CHF was a diagnosis in a prior Discharge List
Chest X-ray Rule	IF a Chest X-ray was ordered within 28 days of an echocardiogram (ECHO)
ECHO Rule	IF an ECHO was ordered within 7 days of a Chest X-ray
IV Lasix Rule	IF a single dose of intravenous furosemide or bumetanide was ordered
AICD Rule	If an order for AICD was entered.

AICD: Automated implantable cardioverter defibrillator