Newest With Complete Questions And Correct Detailed
Answers| Brand New Version
formula for cardiac output - answer;-CO = HR x SV
cardia output is? - answer;-the amount of blood pumped from the heart per
minute
What is stroke volume? - answer;-the volume of blood pumped from the ventricle
per beat
What is preload? - answer;-volume of blood in ventricles at end of diastole;
amount of stretch during diastole
What is afterload? - answer;-resistance/pressure to systolic ejection; we want less
resistance
sustained tachycardia will result in what? - answer;-decreased stroke volume
, what can result in decreased contractility of the heart and why? - answer;-
ischemia/MI, acidosis and cardiomyopathy.
scarred tissue does not work or contract properly
What affects afterload? - answer;-hypertension, pulmonary disease or damage to
aortic valve. mostly hypertension
what can cause decrease preload? - answer;-hemorrhage, dehydration; if blood
volume is low then the preload in the heart is low
heart failure equals - answer;-decreased cardiac output
What is LVEDV and what is it caused by? - answer;-left ventricular end diastolic
volume; decreased contractility and decreased stroke volume
right sided heart failure is known as - answer;-Cor pulmonale
what caused right sided heart failure? and what are the symptoms of it? -
answer;-can be caused by COPD or pulmonary hypertension; symptoms are JVD,
peripheral edema, hepatosplenomegaly
Stage A heart failure - answer;-patients who are at high risk for developing heart
failure but have no structural damage
Stage B heart failure - answer;-patient has structural damage (MI), BUT NO
SYMPTOMS