Cardiovascular System Flashcards
hypertension
pathological increase in blood pressure
What does someones blood pressure with hypertension look like?
Systolic >140, Diastolic >90
What does someones blood pressure with isolated systolic hypertension look like?
Systolic >140, Diastolic
coronary artery disease
decreases blood flow to cardiac muscle
complete blockage of coronary arteries = _______
myocardial infarction/ heart attack
What are the 3 surgical options for fixing cardiac problems?
1) Bypass
2) Angioplasty
3) Stent
Angioplasty
catheter goes up through femoral artery, into heart, balloon gets inflated, opens up vessel and is then taken out again
Stent
catheter goes up through femoral artery, into heart, balloon gets inflated, opens up vessel and stent is put in to hold artery open
congestive heart failure
inability of heart to maintain cardiac output sufficient to meet metabolic needs of body - hearts pumping power is weaker than normal and cannot pump blood and oxygen throughout the body as quickly as usual
4 common arrhythmias
1) bradycardia
2) tachycardia
3) Atrial Fibrillation
4) Ventricular fibrillation
Bradycardia
heart beats too slowly
Tachycardia
heart beats too quickly
atrial fibrillation
atria do not contract completely with each beat but “quiver”
ventricular fibrillation
the ventricles quiver and the heart can’t pump any blood - causing cardiac arrest
pacemakers
inserted for arrhythmias because not enough O2 is pumped through the body to meet metabolic needs