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Question
Answer
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#cardiology
Question
How do physiological mechanisms act to maintain arterial pressure and organ perfusion in CHF (failure of the cardiac pump)?
Answer
Frank-Starling Mechanism: increase in end-diastolic ventricular volume increases tension in wall and enhances contractility
Activation of the sympathetic nervous system
- Increase heart rate
- Increase myocardial contractility
Activation of the renin-angiotensin system
Myocardial adaptations, including hypertrophy and ventricular remodeling
Tags
#cardiology
Question
How do physiological mechanisms act to maintain arterial pressure and organ perfusion in CHF (failure of the cardiac pump)?
Answer
?
Tags
#cardiology
Question
How do physiological mechanisms act to maintain arterial pressure and organ perfusion in CHF (failure of the cardiac pump)?
Answer
Frank-Starling Mechanism: increase in end-diastolic ventricular volume increases tension in wall and enhances contractility
Activation of the sympathetic nervous system
- Increase heart rate
- Increase myocardial contractility
Activation of the renin-angiotensin system
Myocardial adaptations, including hypertrophy and ventricular remodeling
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