The accuracy of interqual criteria in determining the need for observation versus hospitalization in emergency department patients with chronic heart failure.

McKesson's Interqual criteria are one of the medical screening criteria that are widely used in emergency departments (EDs) to determine if patients qualify for observation or inpatient admission. Chronic heart failure (CHF) is one of the most common yet severe cardiovascular diseases seen in the ED with a relatively higher admission rate. This study is to evaluate the accuracy of Interqual criteria in determining observation versus hospitalization need in CHF patients.