A new arrival: Evidence about differential diagnosis

W. S. Richardson, Paul P Glasziou, W. A. Polashenski, M. C. Wilson

Research output: Contribution to journalShort surveyResearchpeer-review

4 Citations (Scopus)


You are a primary care physician seeing a 53 year old man who was examined 2 days ago in an emergency department for an episode of syncope. He had been waiting in a long queue when he felt lightheaded and nauseated; then he lost consciousness, with no witnessed seizure activity. He has been healthy, with no known cardiac or neurological disease. In the emergency department, his vital signs and findings on cardiac and neurological examinations had been normal, as were his blood count, blood glucose concentration, and 12 lead electrocardiogram. He was given no diagnosis, and he is now worried about what caused this episode and whether it will recur. Of the many causes of syncope, you wonder which should be sought in this patient.

Original languageEnglish
Pages (from-to)164
Number of pages1
JournalEvidence-Based Medicine
Issue number6
Publication statusPublished - 2000
Externally publishedYes


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