CCI Practice Exam with 100% correct solutions 2024

At what time during fetal growth is the heart first fully developed? correct answers40 Days Which of the following L-R shunts is the last to close in the normal post partum period? When does it close? correct answersPatent Foramen Ovale closing at the end of the first week During the resting state, which of the following ions are pumped out of the cells of the myocardium? correct answersSodium Following electrical depolarization of the myocardial cell membrane, which ion rushes in first, and which ion rushes in later? correct answerssodium followed by calcium Which ion helps slow heart muscle contraction? correct answerspotassium In the cardiac cell action potential, what phases are included in the absolute refractory period? correct answersPhases 1 into Phase 3 When contracting against which of the following pressures will the velocity of muscle cell contraction be most rapid? correct answerslowest pressure, the higher the pressure the more that it has to overcome in order to contract What happens to the beat following a premature ventricular depolarization? correct answersthe beat is stronger than a typical beat All of the following increase preload correct answersMR AI Volume Overload All of the following increase afterload correct answersAS ASH HTN