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Ventricular assist device: Quiz


Question 1: Gram negative bacteria (________, Enterobacter species, Klebsiella species)
Escherichia coliPseudomonas aeruginosaPathogenic bacteriaHelicobacter pylori

Question 2: It is interesting to note that some of the ________ components used in the devices cause the deletion of a subset of immune cells when blood comes in contact with them.

Question 3: After transplant, 57.7% of the inotrope group had ________ versus 16.6% in the LVAD group; 31.6% of the inotrope group had right heart failure versus 5.6% in the LVAD group; and event-free survival was 15.8% in the inotrope group versus 55.6% in the LVAD group.
Acute kidney injuryRenal failureChronic kidney diseaseNephrotic syndrome

Question 4: A Ventricular assist device, or VAD, is a mechanical circulatory device that is used to partially or completely replace the function of a failing ________.
Lymphatic systemHeartTorsoCirculatory system

Question 5: The ________ used in VADs can be divided into two main categories - pulsatile pumps, that mimic the natural pulsing action of the heart, and continuous flow pumps.
PumpTurbineBernoulli's principleGas compressor

Question 6: Other problems include immunosuppression, clotting with resultant stroke, and ________ secondary to anticoagulation.
PurpuraGastrointestinal bleedingBruiseBleeding

Question 7: VADs need to be clearly distinguished from ________, which are designed to completely take over cardiac function and generally require the removal of the patient's heart.
Pennsylvania State UniversityArtificial heartMichael E. DeBakeyWillem Johan Kolff

Question 8: Heart Pump Design Could Give Patients New Hope — A new counter-flow heart pump developed by ________
University of QueenslandUniversity of South AustraliaCurtin University of TechnologyQueensland University of Technology

Question 9: Which of these types is used depends primarily on the underlying ________ and the pulmonary arterial resistance that determines the load on the right ventricle.
Heart diseaseCardiomyopathyCardiovascular diseaseMyocardial infarction


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