End of Blood Vessels Flashcards
The most common myocardial ischemia?
atherosclerosis of coronary arteries
increased blood lactic acid and anaerobic metaabolism of the heart?
myocardial ishchemia
Substernal pain in myocardial ischemia
referred pain, angina pectoris
Common drug to treat ischemia and pain
nitroglycerin
When the heart becomes perfused with blood again and large number of myocardial cells die
reperfusion injury
What is shown on an EKG that would indicate myocardial infarction
elevated ST segment
Level so fwhat substances can be used to diagnose MI?
troponin 1, creatine phosphokinase (CPK) , lactate dehydrogenase (LDH)
Higher levels of parasympathetic h=inhibition of the SA node
athletes bradycardia
abnormally fast ectopic pacemakers int he ventricles cause them to beat rapidly independent of the atira
ventricular tachycardia
what does ventricular tachycardia lead to?
ventricular fibrillation
What does atrial fibrillation promote
strokes, clot formation
continuous recycling of electrc waves that cause fibrillation
circus rhythms
What is the purpose of electrical defibrillation?
depolarize all myocardial cells at the same time so they enter a refractory state
What is the cause of all cell death
lack of ATP
Device used for high risk heart patient’s
implantable converter defibrillator
