NSG 4330 A00 Complex Nursing Care Week 1
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questions with answers |\ |\
what level does the heartbeat start at? - CORRECT ANSWERS
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✔✔the cellular level
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what generates action potentials? - CORRECT ANSWERS
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✔✔individual monocytes |\
how do action potentials propagate across heart? - CORRECT
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ANSWERS ✔✔via conduction pathways |\ |\ |\
what are the inherent pacemakers? - CORRECT ANSWERS
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✔✔sinoatrial node |\
atrioventricular node |\
purkinje fibers |\
what does the p wave represent? - CORRECT ANSWERS
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✔✔depolarization of the atria |\ |\ |\
what does the qrs complex indicate? - CORRECT ANSWERS
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✔✔depolarization of the ventricles |\ |\ |\
what does the t wave represent? - CORRECT ANSWERS
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✔✔repolarization of the ventricles |\ |\ |\
, if the u wave is present what does it represent? - CORRECT
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ANSWERS ✔✔repolarization of the purkinje fibres or may be
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associated with hypokalemia |\ |\
what does the pr, qrs, qt intervals reflect? - CORRECT ANSWERS
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✔✔the length of time it takes for the impulse to travel from one
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area to the heart to another
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what triggers mechanical activity? - CORRECT ANSWERS
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✔✔depolarization
what does the stroke volume usually refer to? - CORRECT
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ANSWERS ✔✔left ventricle |\ |\
what is stroke volume and what is the amount? - CORRECT
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ANSWERS ✔✔amount of blood ejected from left ventricle per beat
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60-100 mls per beat
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what is preload? - CORRECT ANSWERS ✔✔how much the right
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ventricle is stretched |\ |\ |\
it's dependent on venous return
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what is afterload? - CORRECT ANSWERS ✔✔resistance left
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ventricle has to overcome to push blood to systemic circulation
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|\ |\ |\ |\ |\ |\ |\ |\
questions with answers |\ |\
what level does the heartbeat start at? - CORRECT ANSWERS
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
✔✔the cellular level
|\ |\
what generates action potentials? - CORRECT ANSWERS
|\ |\ |\ |\ |\ |\ |\
✔✔individual monocytes |\
how do action potentials propagate across heart? - CORRECT
|\ |\ |\ |\ |\ |\ |\ |\ |\
ANSWERS ✔✔via conduction pathways |\ |\ |\
what are the inherent pacemakers? - CORRECT ANSWERS
|\ |\ |\ |\ |\ |\ |\ |\
✔✔sinoatrial node |\
atrioventricular node |\
purkinje fibers |\
what does the p wave represent? - CORRECT ANSWERS
|\ |\ |\ |\ |\ |\ |\ |\ |\
✔✔depolarization of the atria |\ |\ |\
what does the qrs complex indicate? - CORRECT ANSWERS
|\ |\ |\ |\ |\ |\ |\ |\ |\
✔✔depolarization of the ventricles |\ |\ |\
what does the t wave represent? - CORRECT ANSWERS
|\ |\ |\ |\ |\ |\ |\ |\ |\
✔✔repolarization of the ventricles |\ |\ |\
, if the u wave is present what does it represent? - CORRECT
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
ANSWERS ✔✔repolarization of the purkinje fibres or may be
|\ |\ |\ |\ |\ |\ |\ |\ |\
associated with hypokalemia |\ |\
what does the pr, qrs, qt intervals reflect? - CORRECT ANSWERS
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
✔✔the length of time it takes for the impulse to travel from one
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
area to the heart to another
|\ |\ |\ |\ |\
what triggers mechanical activity? - CORRECT ANSWERS
|\ |\ |\ |\ |\ |\ |\
✔✔depolarization
what does the stroke volume usually refer to? - CORRECT
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
ANSWERS ✔✔left ventricle |\ |\
what is stroke volume and what is the amount? - CORRECT
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
ANSWERS ✔✔amount of blood ejected from left ventricle per beat
|\ |\ |\ |\ |\ |\ |\ |\ |\
60-100 mls per beat
|\ |\ |\ |\
what is preload? - CORRECT ANSWERS ✔✔how much the right
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
ventricle is stretched |\ |\ |\
it's dependent on venous return
|\ |\ |\ |\
what is afterload? - CORRECT ANSWERS ✔✔resistance left
|\ |\ |\ |\ |\ |\ |\ |\
ventricle has to overcome to push blood to systemic circulation
|\ |\ |\ |\ |\ |\ |\ |\ |\
