Table 1.

Illustrations of risk stratification for acute pulmonary embolism (PE).

Risk	Clinical Appearance	Vital Signs	Cardiac Biomarkers	Right Ventricular Function
LOW	Appears well	Normal	Normal	Normal right ventricular size and function
INTERMEDIATE	Appears well	Normal	Elevated	Moderate right ventricular dysfunction
HIGH	Appears ill	Transient or sustained hypotension	Elevated	Severe right ventricular dysfunction