NURS 272 EXAM 3 UPDATED ACTUAL
QUESTIONS AND CORRECT ANSWERS
What are hemodynamics - CORRECT ANSWERS Measurements that describe the
intravascular pressure and flow that occur when the heart muscle contracts and pumps bloody via
the vascular system. Or, the pressure and flow of blood in the body, whichby through the bod are
controlled volume, output, and resistance.
What are hemodynamics closely related to - CORRECT ANSWERS the pulmonary system
what are the three elements of hemodynamics - CORRECT ANSWERS Heart - pump•
Blood - volume for the pump to move• Vascular tone - resistance against the pump
what is cardiac output - CORRECT ANSWERS Volume of blood ejected by the heart in
one minute:
cardiac output = heart rate x stroke volumne
how to measure cardiac output - CORRECT ANSWERS heart rate x stroke volume
What is stroke volume? - CORRECT ANSWERS The amount of blood ejected from the
left ventricle with each heartbeat
how do you calculate stroke volume - CORRECT ANSWERS cardiac output (mL)/ heart
rate
calculate stroke volume for a pt with a CO of 5000 mL/ min and a HR of 75 - CORRECT
ANSWERS 66.7 mL/ beat
normal stroke volume - CORRECT ANSWERS 60-100 mL/beat
, Normal HR - CORRECT ANSWERS 60-100 bpm
low stroke volume - CORRECT ANSWERS below 60 mL
low HR - CORRECT ANSWERS below 60 bpm
high stroke volume - CORRECT ANSWERS above 100 mL
High HR - CORRECT ANSWERS above 100 bpm
how to calculate ejection fraction - CORRECT ANSWERS stroke volume/end diastolic
volume X 100
normal ejection fraction - CORRECT ANSWERS 50-70%
what do you think as a nurse when a pt has low SV - CORRECT ANSWERS low
perfusion and potential cardiogenic shock
what do you think as a nurse when a pt has high SV - CORRECT ANSWERS this can
happen after fluid resuscitation or in strong athletic hearts
what does MAP represent - CORRECT ANSWERS the average pressure in a patients
arteries during one cardiac cycle
What does MAP reflect? - CORRECT ANSWERS tissue perfusion
MAP formula - CORRECT ANSWERS dia + (systolic - diastolic)/3
QUESTIONS AND CORRECT ANSWERS
What are hemodynamics - CORRECT ANSWERS Measurements that describe the
intravascular pressure and flow that occur when the heart muscle contracts and pumps bloody via
the vascular system. Or, the pressure and flow of blood in the body, whichby through the bod are
controlled volume, output, and resistance.
What are hemodynamics closely related to - CORRECT ANSWERS the pulmonary system
what are the three elements of hemodynamics - CORRECT ANSWERS Heart - pump•
Blood - volume for the pump to move• Vascular tone - resistance against the pump
what is cardiac output - CORRECT ANSWERS Volume of blood ejected by the heart in
one minute:
cardiac output = heart rate x stroke volumne
how to measure cardiac output - CORRECT ANSWERS heart rate x stroke volume
What is stroke volume? - CORRECT ANSWERS The amount of blood ejected from the
left ventricle with each heartbeat
how do you calculate stroke volume - CORRECT ANSWERS cardiac output (mL)/ heart
rate
calculate stroke volume for a pt with a CO of 5000 mL/ min and a HR of 75 - CORRECT
ANSWERS 66.7 mL/ beat
normal stroke volume - CORRECT ANSWERS 60-100 mL/beat
, Normal HR - CORRECT ANSWERS 60-100 bpm
low stroke volume - CORRECT ANSWERS below 60 mL
low HR - CORRECT ANSWERS below 60 bpm
high stroke volume - CORRECT ANSWERS above 100 mL
High HR - CORRECT ANSWERS above 100 bpm
how to calculate ejection fraction - CORRECT ANSWERS stroke volume/end diastolic
volume X 100
normal ejection fraction - CORRECT ANSWERS 50-70%
what do you think as a nurse when a pt has low SV - CORRECT ANSWERS low
perfusion and potential cardiogenic shock
what do you think as a nurse when a pt has high SV - CORRECT ANSWERS this can
happen after fluid resuscitation or in strong athletic hearts
what does MAP represent - CORRECT ANSWERS the average pressure in a patients
arteries during one cardiac cycle
What does MAP reflect? - CORRECT ANSWERS tissue perfusion
MAP formula - CORRECT ANSWERS dia + (systolic - diastolic)/3
