[Dizziness: hypoglycemia, hypotension or spasmophilia?].

The consultation for dizziness is a common problem in clinical practice. Because of the apparent lack of specificity of the complaints, there is a rather high risk to prescribe a variety of sophisticated exams, which will not be very helpful in absence of a well oriented anamnesis and a pertinent clinical examination. The present paper aims at describing a global medical approach, essentially based upon a detailed anamnesis (semiological, chronological and therapeutical arguments), to which may be added a few simple clinical and technical complementary data. This strategy should allow obtaining quite easily pertinent arguments for a differential diagnosis between reactive hypoglycaemia, (orthostatic) hypotension, and hyperventilation crisis (spasmophilia).