Caffeine orthostatic hypotension

Patients should refrain from smoking or caffeine ingestion for 30 minutes and be seated with the lower back supported in a chair and with their bare arm resting near heart level. Legs should be flat on the floor (not crossed). Measuring BP in the supine or standing position may be required under special circumstances (e.g., suspected orthostatic hypotension, volume depletion, or dehydration). The measurement environment should be relatively quiet and should provide privacy. 

Orthostatic hypotension managed by sodium chloride tablets, caffeine, support hose, or biofeedback... 

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