Coronary Artery Disease Flashcards
Characterised by angina pectoris
1
2
1 vasopsastic disease
Transient vasoconstriction of coronary artery
(Transient ischaemia, attack occurs at rest, attack occurs in clusters)
2 atherosclerotic disease
Coronary artery narrows due to plaque
(Stable/unstable angina or myocardial infarction)
Acute coronary syndrome
Unstable angina
Myocardial infarction
Stable angina if
No pain at rest
Pain due o physical exercise
Unstable angina if
Present at rest Frequent Lasts longer Occurs with less extertion Prolonged ischemia
Can lead to MI I’d not managed
First 10 mins do what
ABC
Physical exam
Cardiac + 02 sats
325mg aspirin
Oxygen dats need what st each %
Lesss than 90% =supplemented oxygen
Less than 80%= supplemented 02+ assisted ventilation
Cardiac markers of myocardial damage
Tropomin T and I
Essential for diagnosis of MI
Troponin found where
In cardiomyocytes
Released into blood when damaged
Take 6 hours to be released
Negative troponins
Unstable angina
Non cardiac chest pain
Short attack of prinzmetal angina
Positive troponins
Cardiomyocyte death
MI
Questions to ask
OPQRST
ONSET PROVOCATION PALLIATION QUALITY RADIATION SITE TIME COURSE
Symptoms usually
Dyspnea palpitations
Nausea
Sweating
Who’s prone to it
Women
Older adults (atypical presentation)
Diabetes
Myocardial ischemia
Unstable angina
MI
prinzemetal angina
Treatment for myocardial ischemia
Nitrates
3 sublingual doses
0.4 mg
IV if doesn’t work