Blood Pressure Examination Flashcards
Cuff Selection
The length of the inflatable bladder needs to be approximately 80% of the circumference of the arm and the width about 40%
The reading will be artificially elevated if the cuff is too small and the opposite if the cuff is too big.
Korotkoff sounds
Heart Chamber Sizes and Pressures
Definition of Postural Hypotension
A fall of more than 15mmHg systolic or 10mmHg diastolic
Classification of Blood Pressure Readings
Pressure Changes over Cardiac Cycle
Causes of Postural Hypotension
Hypovolaemia (e.g. dehydration, bleeding);
Hypopituitarism
Addison’s disease (adrenal gland failure)
Neuropathy - autonomic (e.g. diabetes mellitis, amyloidosis, Shy-Drager syndrome)
Drugs (e.g. vasodilators, other antihypertensives, tricyclic antidepressants, diuretics, antipsychotics)
Idiopathic orthostatic hypotension (degeneration of autonomic nervois system in elderly men)