4.4 Diseases of the Cardiovascular System Part 2 Flashcards
When does a myocardial infarction occur?
when a portion of the heart muscle dies because of a lack of oxygen
What can cause angina pectoralis?
if a coronary artery is partially block due to plaque
What is the characteristic symptom of angina pectoralis?
radiating pain in the left arm
What are the two drugs that can be given for thromboembolism?
streptokinase
t-PA
How is streptokinase made?
bacteria
How is t-PA made?
genetically engineered
How do streptokinase and t-PA work?
convert plasminogen into plasmin which helps dissolve blood clots
What can be given to people who have symptoms of angina or a thrombolytic stroke?
anticoagulant drug like aspirin
How does aspirin work?
reduces the coagulation of platelets and lowers the probability of a clot forming
What is an angioplasty?
procedure where a surgeon threads a plastic tube into the artery of a limb then to the heart then a balloon inflates to force the blood vessel open
What is a coronary artery bypass surgery?
operation where a segment of another blood vessel is stitched to one end of the aorta and the other two the coronary artery
