ABCP Perfusion Basic science practice Questions Wth Correct Answers

An advantage of continuous warm blood cardioplegia is - Answer Increased oxygen delivery Intra-aortic balloon augmentation is contraindicated in pts with - Answer Aortic insufficiency When using a roller pump, aortic dissection caused by the aortic cannula may be detected by - Answer Elevated arterial line pressure The most significant advantage of venovenous ECMO over venoarterial ECMO is - Answer Unaffected pulmonary hemodynamics The rate of water extraction using an ultrafiltration device is dependent upon - Answer 1. Number, depth, and diameter of membrane pores membrane pressure 3. Blood flow rate When compared to trueembranes, hydrophobic microporous membrane oxygenators may exhibit - Answer Fluid passage into the gas compartment A low venous oxygen saturation may indicate - Answer 1. Increased oxygen utilization 2. Inadequate pump output 3. Failure of the oxygenator to oxygenate the blood Polyvinyl chloride tuning in the roller pump usually deteriorates by - Answer Cracking and breaking from the outer edge in The theoretical advantage of blood cardioplegia over crystalloid is evidenced by - Answer 1. Greater preservation of myocardial high energy phosphates 2. Greater myocardial oxygen utilization 3. Reduced cardiac enzyme release in the immediate post operative period Activated factor X is the first step in which of the following coagulation stages - Answer Common pathway Under normal physiological conditions, which organ has the lowest oxygen consumption per unit weight - Answer Kidney The release of NE by the nerve impulses causes interaction with - Answer Alpha receptors In a pt with chronic hypoxic condition, the oxyhemoglobin dissociation curve is shifted to the right by - Answer Increased 2,3 DPG levels The use of citrate phosphate dextrose (CPDA) blood in the perfusate affects what parameter - Answer Ionized calcium Verapamil has actions similar to those of - Answer Nifedipine Anti-arrhythmic Anti HTN Dexamethasone is a potent, synthetic - Answer Adrenocortical steroid Deferoxamine (desferrioxamine) administered in large doses is a - Answer Hydroxyl radical scavenger Iloprost is analog of - Answer Prostacyclin Tx HTN With normal renal function, the half life of cephalexin is - Answer 1 hour Cephalexin - Answer Antibiotic Treatment for blood transfusion reaction - Answer Steroids Diuretics Heparin Tx for antithrombin III deficiency - Answer FFP During congenital intracardiac surgery, excessive venous blood draining into the RA may indicate the presence - Answer Persistent left superior vena cava Major extracellular cation - Answer Sodium Primary structural units of proteins - Answer L-amino acid Which clotting factor is activated by contact with foreign surfaces, roughened vascular walls, and platelet aggregates - Answer XII hageman The effect of plasmin is to - Answer Limit clotting by splitting fibrin The normal arterio-venous oxygen difference is approximately - Answer 5 volumes percent?