Physiologic
Vasovagal, HTN, seizure, pulmonary edema
Mild
Vasovagal reaction — mild
Transient bradycardia · Mild hypotension that responds to leg elevation
Severe
Vasovagal reaction — severe
Persistent bradycardia (HR < 50) · Persistent hypotension
Severe
Hypertensive crisis
Marked HTN with end-organ symptoms · Headache, visual changes, chest pain
Severe
Seizure / convulsion
Generalized convulsion · Focal seizure activity
Severe
Pulmonary edema
Dyspnea, rales · Hypoxia