Acute coronary syndromes/MI Flashcards
what are the acute coronary syndromes(ACS)
unstable angina, NSTEMI and STEMI
describe the aetiology of ACS
critical ischaemia caused by an atherosclerotic plaque rupturing and the subsequent thrombus completely occluding a coronary artery
describe the symptoms of ACS
chest pain, sweating, dyspnoea, nausea
how may ACS symptoms differ in the elderly or diabetics
may be silent with no chest pain and less specific symptoms
describe the chest pain in ACS
central crushing chest pain lasting >20mins
not relieved by rest or GTN spray, may radiate down left arm or to jaw
what is classically seen on an ECG in ACS
tall T waves, ST elevation, new LBBB
what is seen later on in ACS on an ECG
T wave inversion and pathological Q waves
what blood test is used to detect myocardial ischaemia
troponin, if elevated then myocardial ischaemia has occurred
what ECG leads is an anterior MI seen in
V1-V6
what ECG leads is an inferior MI seen in
II, III, aVF
what ECG leads is a lateral MI seen in
I, aVL, V5, V6
what ECG leads is an anteroseptal MI seen in
V1-V4
what are some of the complications of an MI
bradycardia/heart block, heart failure, tachyarrhythmia, structural damage
what ECG leads is a posterior MI seen in
V1-V2
