Acute Coronary syndromes Flashcards
What is coronary artery disease?
an umbrella term that includes angina and acute coronary syndrome
Ischemia
insufficient oxygen is supplied to meet requirements
Infarction
necrosis when ischemia is prolonged causing decreased perfusion and irreversible damage
what is the difference between stable and unstable angina?
stable is predictable and occurs with exertion
unstable is new onset, poorly relieved by NTG
What is angina pectoris?
chest pain caused by temporary imbalance of oxygen supply and the demand for oxygen
What is Chronic stable angina?
chest discomfort that occurs with moderate to prolonged exertion due to FIXED atherosclerotic plaque
Typical 3 features of chronic stable angina
substernal chest pain or heaviness
precipitated by stress
relieved by rest or NTG
What is a diagnostic indicator for stable angina?
cardiac biomarkers like troponin are not elevated
what is the usual dosage for plavix?
75 mg/day
What is acute coronary syndrome?
used to describe patients with unstable angina or acute MI
Vasospastic angina
chest pain from coronary artery spasm and occurs at rest
Myocardial infarction
myocardial tissue is deprived of oxygen
what are the 2 types of MIs?
Non ST segment elevation (NSTEMI)
ST elevation (STEMI)
How does an NSTEMI present on an EKG?
ST segment depression and T inversion
How does a STEMI present on a EKG?
ST segment elevation