Perfusion Basic Science Practice Questions And Answers (Verified And Updated)

Perfusion Basic Science Practice Q uestions And Answers (Verified And Updated) An advantage of continuous warm blood cardioplegia is - answer✔✔Increased oxygen delivery Intra -aortic balloon augmentation is contraindicated in pts with - answe r✔✔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 p ulmonary hemodynamics The rate of water extraction using an ultrafiltration device is dependent upon - answer✔✔1. Number, depth, and diameter of membrane pores 2.transmembrane pressure 3. Blood flow rate When compared to trueembranes, hydrophobic microporo us 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 Polyvin yl 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 energ y 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 physiolog ical 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 an tithrombin 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 structura l 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