The most common cause of renal artery stenosis is atherosclerosis, the same condition that causes narrowing of the arteries in coronary heart disease and stroke, and the risk factors are the same as well. Cholesterol plaques build up along the walls of the renal artery and gradually cause narrowing.
Oxytocin is a commonly used uterotonic that can cause significant and even fatal hypotension, particularly when given as a bolus. The resulting hypotension can be produced by a decrease in systemic vascular resistance or cardiac output through a decrease in venous return.
TWO AND ONE HALF HOURS INTO THE DIALYSIS TREATMENT, MR SMITH EXPERIENCES A DROP IN HIS BLOOD PRESSURE. THE MOST COMMON CAUSES OF HYPOTENSION DURING DIALYSIS INCLUDE ALL OF THE FOLLOWING EXCEPT: INCREASED DIETARY INTAKE OF SODIUM, TAKING ANTIHYPERTENSIVE MEDICATIONS BEFORE DIALYSIS, EXCESS FLUID REMOVAL, AN UNSTABLE CARDIOVASCULAR SYSTEM.