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Deciding how far to investigate syncope is a common challenge in emergency medicine. Recent guidance from the National Institute for Health and Clinical Excellence recommends referral for specialist cardiovascular assessment for many patients, but has little to say about the use of blood tests.1 Reed et al have shown that troponin levels predict the risk of adverse outcome and death in adults presenting to the emergency department after an episode of syncope.2 …
Provenance and peer review Commissioned; internally peer reviewed.