Evidence-based On-call

internal medicine

Syncope

Causes
Clinical features
Investigations
Therapy
Prognosis

Clinical features

Ask about current medication use ^c

Why?

Medication accounts for 3% to 11% of syncopal episodes ^c

Expiry date: June 2004
Levels of Evidence used in grading these guides

Author	CM Ball
Reviewer	W N Kapoor
CAT Writers	CM Ball , B Phillips , CJ Wotton