Hemodynamics NR341 Exam Questions With Correct Answers
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Course
NR 341
Institution
NR 341
Hemodynamics NR341 Exam Questions With
Correct Answers
Blood pressure= ___________ X ____________ - answercardiac output x peripheral
resistance
Cardiac output= _____ x _____ - answerheart rate x stroke volume
Stroke volume - answerThe volume of blood pumped from a ventricle of the heart in on...
Hemodynamics NR341 Exam Questions With
Correct Answers
Blood pressure= ___________ X ____________ - answer✔cardiac output x peripheral
resistance
Cardiac output= _____ x _____ - answer✔heart rate x stroke volume
Stroke volume - answer✔The volume of blood pumped from a ventricle of the heart in one beat
Systemic Vascular Resistance (SVR) - answer✔The resistance that blood must overcome to be
able to move within the blood vessels. SVR is related to the amount of dilation or constriction in
the blood vessel.
Pulmonary Vascular Resistance (PVR) - answer✔Opposition encountered by the right ventricle
Preload - answer✔The precontraction pressure in the heart as the volume of blood builds up.
Afterload - answer✔the pressure that the heart must work against to eject blood during systole.
Pulmonary artery wedge pressure (PAWP) - answer✔Reflects left ventricular end diastolic
pressure. 8-12 mmHg
Central Venous Pressure (CVP) - answer✔The pressure of blood in the thoracic vena cava, near
the right atrium of the heart; reflects the amount of blood returning to the heart and the ability of
the heart to pump the blood into the arterial system.
*Central venous pressure is considered a direct measurement of the blood pressure in the right
atrium and vena cava
2-6 mmHg
What increases afterload? - answer✔hypertension and atherosclerosis
What decreases afterload? - answer✔The afterload can be decreased by any process that lowers
blood pressure.
What are inotropes? - answer✔factors that influence myocardial contractility
Dopamine.
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