Unit 20, 21 Flashcards
right coronary artery (RCA)
supplies the inferior wall of the heart and the right ventricle
right marginal artery
supplies blood to the right ventricle
left coronary artery
supplies blood to the left side of the heart
12 lead ECG
takes picture of heart at different angles to see blockage or delay of electrical current
when do you use 12 lead instead of 4 lead
STEMI
ST- elevation myocardial infarction
if wave doesn’t go back to basline before going to northing
atherosclerosis
refers to fatty plaque buildup within the wall of a coronary artery
stenosis
narrowing of a blood vessel
diastole
a phase of contraction where the coronary arteries are perfused
what is STEMI caused by
caused by a complete occlusion of a coronary artery that results in ST segment elevation
unstable angina
ischemic chest pain that occurs at rest without ECG or cardiac enzyme changes
left anterior descending (LAD)
coronary artery supplying the anterior wall of the heart
left circumflex (LCX)
coronary artery supplying the lateral wall of the left ventricle
subendocardial ischemia
represents the ST segment depression on an ECG in the context of ischemic chest pain
how much aspirin do you give
325 mg
four 81 mg chewable
pericarditis
STEMI mimic that is the result of inflammation of the pericardium, that may result in widespread, concave ST elevation