ABCP Basic Science Booklet Practice Exam QUESTIONS AND ANSWERS

ABCP Basic Science Booklet Practice Exam QUESTIONS AND ANSWERS An advantage of continuous warm blood cardioplegia is: A. Increased oxygen delivery B. Significantly decreased myocardial oxygen tension. C. A shift of the oxygen dissociation curve to the left. D. Lower myocardial oxygen consumption - CORRECT ANSWERS increased oxygen delivery Intra-aortic ballon augmentation is contraindicated in patients with: A. prosthetic aortic valves B. aortic insufficiency C. ventricular septal defects D. peripheral atherosclerosis - CORRECT ANSWERS aortic insufficiency When using a roller pump, aortic dissection caused by the aortic cannula my be detected by: A. elevated venous return B. elevated arterial line pressure C. elevated left radial artery pressure D. increased venous saturation - CORRECT ANSWERS elevated arterial line pressure The most significant advantage of venovenous ECMO over venoarterial ECMO is: A. improved cardiac support B. unaffected pulmonary hemodynamics C. superior arterial oxygenation D. reduced pulmonary blood flow - CORRECT ANSWERS unaffected pulmonary hemodynamics The rate of water extraction using an ultrafiltration device is dependent upon all of the following EXCEPT: A. number, depth, and diameter of membrane pores. B. transmembrane pressure C. electrolyte concentration D. blood flow rate - CORRECT ANSWERS electrolyte concentration When compared to true membranes, hydrophobia microporous membrane oxygenators may exhibit which of the following characteristics? A. increased oxygen transfer B. fluid passage to the gas compartment C. decreased carbon dioxide transfer D. reduced surface boundary layer - CORRECT ANSWERS fluid passage to the gas compartment A low venous oxygen saturation may indicate all EXCEPT which of the following: A. increased oxygen utilization B. inadequate pump output C. failure of the oxygenator to oxygenate the blood D. A-V shunting - CORRECT ANSWERS A-V shunting Polyvinyl Chloride tubing in the roller pump usually deteriorates by: A. crumbling away from the outside in B. crumbling away from the inside out C. cracking and breaking from the outer edge in D. cracking and breaking from the inner edge out - CORRECT ANSWERS cracking and breaking from the outer edge in The theoretical advantage of blood cardioplegia over crystalloid is evidenced by all the following EXCEPT: A. greater preservation of myocardial high energy phosphates. B. greater myocardial oxygen utilization C. greater accumulation of myocardial lactate D. reduced cardiac enzyme release in the immediate post-operative period - CORRECT ANSWERS greater accumulation of myocardial lactate Activated Factor X is the first step in which of the following coagulation stages? A. intrinsic pathway B. common pathway C. waterfall sequence D. extrinsic pathway - CORRECT ANSWERS common pathway Under normal physiological conditions, which organ has the lowest oxygen consumption per unit weight? A. brain B. kidney C. lungs D. liver - CORRECT ANSWERS kidney The release of norepinephrine by the nerve impulses cause interaction with: A. alpha receptors B. beta receptors C. baroreceptors D. chemoreceptors - CORRECT ANSWERS alpha receptors In a patient with chronic hypoxic condition, the oxyhemoglobin dissociation curve is shifted to the right by: A. the Haldane effect B. increased 2,3 DPG levels C. the Bohr effect D. increased ADP - CORRECT ANSWERS increased 2,3 DPG levels The use of Citrate Phosphate Dextrose (CPD-A) blood in the perfusate affects what parameter? A. potassium B. ionized calcium C. total carbon dioxide D. blood sugar - CORRECT ANSWERS ionized calcium Verapamil has actions similar to those of: A. Bretylium B. Dilantin C. Norpace D. Nifedipine - CORRECT ANSWERS Nifedipine