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Hemodynamics NR341 Exam Questions And Answers
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Hemodynamics NR341 Exam Questions And AnswersBlood 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 which the blood has to
overcome to be able to move within the blood vessels. SVR relates to the amount of
dilation or constriction in the blood vessel.
Pulmonary Vascular Resistance (PVR) - Answer Opposition to the right ventricle
Preload - Answer The precontraction pressure in the heart as the volume of blood builds
up.
Afterload - The pressure against which the heart must work to eject blood during systole.
PAWP- 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
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