What causes sudden fainting and loss of bladder/bowel control?
Sudden fainting and incontinence may be due to a sharp decrease in blood pressure, a sudden reduction in cardiac output, and widespread insufficiency in brain artery supply. It is related to cardiogenic syncope, cerebrogenic syncope, and vasovagal inhibitory syncope. This is caused by a temporary sudden decrease in cerebral blood flow, resulting in insufficient blood and oxygen supply to the brain, which leads to suppression of the reticular activating system and loss of consciousness and incontinence. Further actions should include ambulatory electrocardiograms, dynamic blood pressure monitoring, dynamic electroencephalograms, cranial magnetic resonance imaging, and vascular imaging to clarify the cause of the syncope. Further tests should include complete blood count, liver function tests, kidney function tests, and electrocardiograms.
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