CCI PRACTICE EXAM REVISED 2024
At what time during fetal growth is the heart first fully developed? - Answer 40 Days
Which of the following L-R shunts is the last to close in the normal post partum period?
When does it close? - Answer Patent 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? -
Answer Sodium
Following electrical depolarization of the myocardial cell membrane, which ion rushes in first, and which
ion rushes in later? - Answer sodium followed by calcium
Which ion helps slow heart muscle contraction? - Answer potassium
In the cardiac cell action potential, what phases are included in the absolute refractory period? - Answer
Phases 1 into Phase 3
When contracting against which of the following pressures will the velocity of muscle cell contraction be
most rapid? - Answer lowest 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? - Answer the beat is
stronger than a typical beat
All of the following increase preload - Answer MR
AI
At what time during fetal growth is the heart first fully developed? - Answer 40 Days
Which of the following L-R shunts is the last to close in the normal post partum period?
When does it close? - Answer Patent 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? -
Answer Sodium
Following electrical depolarization of the myocardial cell membrane, which ion rushes in first, and which
ion rushes in later? - Answer sodium followed by calcium
Which ion helps slow heart muscle contraction? - Answer potassium
In the cardiac cell action potential, what phases are included in the absolute refractory period? - Answer
Phases 1 into Phase 3
When contracting against which of the following pressures will the velocity of muscle cell contraction be
most rapid? - Answer lowest 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? - Answer the beat is
stronger than a typical beat
All of the following increase preload - Answer MR
AI
