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Check all that occur during ventricular systole. ( ) The AV valves open to allow blood to enter the ventricles from the atria. ( ) The semilunar valves remain closed throughout systole to prevent backflow of blood into the ventricles.
Once implanted, the LVAD pumps blood from the left ventricle to the aorta. Describe the status of the atrioventricular (AV) and semilunar (SL) valves during the ventricular assist. AV valves are closed, and SL valves are open.
Hace 20 horas · A patient has a rapid irregular wide-complex tachycardia. The ventricular rate is 138/min. He is asymptomatic, with a blood pressure of 110/70 mm Hg. He has a history of angina. What action is recommended next? A. giving adenosine 6 mg IV bolus B. giving lidocaine 1 to 1.5 mg IV bolus C. preforming synchronized cardioversion D ...
