A 24-year-old man presents after a brief loss of consciousness while queuing at a supermarket. He felt hot and nauseated, then woke lying on the floor...

Question

A 24-year-old man presents after a brief loss of consciousness while queuing at a supermarket. He felt hot and nauseated, then woke lying on the floor; witnesses report he was pale and sweaty and recovered rapidly. He has no cardiac history and examination, ECG and blood tests are normal. What is the most likely diagnosis?

Accepted Answer

Vasovagal syncope

Answer

Generalised tonic-clonic seizure

Answer

Cardiac arrhythmia due to long QT syndrome

Answer

Postural hypotension from autonomic failure

Answer

Hypoglycaemia

au-amc MCQ (SBA): Syncope risk stratification