Cardiovascular Flashcards
(40 cards)
What is CO?
measurement of cardiac efficiency
The amount of blood pumped by the left ventricle in 1 minute
What is the formula for CO?
CO= stroke volume x HR
What SVR (SYSTEMIC VASCULAR RESISTANCE)
the pressure caused by systemic circulation
What are murmurs?
Blowing or swooshing sound
What causes murmurs?
High blood flow rate through normal or abnormal orifices Forward flow through a narrowed or irregular or into a dilated vessel Backward flow (regurgitation) through an incompetent valve
What are systolic murmurs?
Associated with aortic and pulmonic valves
What are diastolic murmurs?
Associated with tricuspid and mitral valves
What’s the equation for BP?
SVR + CO
What’s pre htn?
120-139/80-89
What is grade 1 HTN?
140-159/90-99, mild
What is grade 2 HTN?
Moderate, 160-179/100-109
What is grade 3 HTN?
Greater than 180/>110
What factors contribute to the development of HTN?
SNS stimulation
H2O & Na retention
Insulin resistance
Renin angiotensin mechanisms
What are level one treatments for htn?
Weight reduction
Decrease Na intake
I’m ease physical activity
Decrease alcohol consumption
What are the goals of level 2 treatment of HTN?
Lower SVR and CO
What are level two treatments of HTN?
Thiazide dieuretics
ACE inhibitors
Angiotensin receptor blockers
Beta blockers
What does HTN play a major factor in the function of?
Brain, kidneys, eyes, peripheral vascular system
What does HF include?
Abnormal condition with impaired cardiac pumping
Changes of vasoconstriction and fluid retention
Any mechanisms affecting CO
Ventricular dysfunction
Decreased exercise tolerance and quality of life
Shortened life expectancy
What are primary risk factors of HF?
Diabetes, high cholesterol, HTN, obesity, smoking, poor diet
What is the number one cause of HF?
HTN
What is the number two cause of HF?
CAD
What is the third cause of HF?
Cardiomyopathy
What are the three types of cardiomyopathy?
Dilated
Hypertrophic
Restrictive
What causes dilated cardiomyopathy?
HTN Alcohol Diabetes Obesity Infections