NSG 510 Exam 3 Questions With Correct Answers.

NSG 510 Exam 3 Questions With Correct Answers. Intermittent claudication - answerNormally we expect O2 supply to equal O2 demand but in this case there is decreased supply of O2 which leads to anaerobic metabolism, causing pain. When adding activity you are increasing the oxygen demand way in excess of supply and anaerobic metabolism becomes quite severe. Therefore, rest decreases tissue oxygen demand and aerobic metabolism decreasing pain Berry aneurysm - answerSaccular aneurysm Cerebral circulation Transient ischemic attacks - answerBrief episodes of neurological deficits that usually resolve in 24 hours Ischemic embolic cerebrovascular accident - answerStroke Thrombus traveling to brain Have acute onset of focal neurological findings including: changes in level of consciousness and one-side (opposite the location of the embolus) motor and sensory deficits. This is a medical emergency and needs immediate intervention to prevent cerebral tissue necrosis Homan's sign - answerCalf tenderness on dorsiflexion of the foot, and is a notoriously unreliable indicator of venous thrombosis Cardiac output - answer=Stroke volume x HR Cardiac output - amount of blood leaving the heart Stroke volume - volume of blood per beat Heart rate - number of beats per minute Blood pressure - answer=Cardiac output times systemic vascular resistance (CO x SVR) Preload - amount of fluid returning to the heart Afterload - resistance against which the left ventricle must