Cardiac Flashcards
Coronary arteries are perfused during?
Diastole
S1 signals
Closure of mitral and tricuspid valves
S2 signals
closure of pulmonic and aortic valve
S3 (ventricular gallop) is caused by?
Fluid overload, cardiomyopathy, mitral or tricuspid regurgitation
S4 (Atrial gallop) is caused by?
Ischemia, HTN, pulmonary stenosis, CAD, aortic stenosis, left ventricular hypertrophy
What is split S1 heart sounds?
Mitral valve closes before tricuspid valve occurs during RBBB, PVCs, or ventricular pacing
What is split S2 heart sounds?
Aortic valve closes before pulmonic valve occurs due to overfilled right ventricle or atrial septal defect
Troponin elevates in
3-6 hours
Troponin peaks in
14-20 hours
Troponin returns to normal in
1-2 weeks
Which medications should you avoid in suspected right ventricular infarction?
Medications that reduce pre-load (Morphine & Nitro!)
What are the big 5 medications prescirbed post MI?
Aspirin, Beta blockers, P2Y12 Inhibitor (plavix), ACEI or ARB, and statin
Inferior MI Artery
RCA
Inferior MI ST Elevation
II, III, aVF
Inferior MI Reciprocal changes
I, aVL
Inferior MI Symptoms
Bradycardia, First degree AVB, 2nd degree AVB Type I, Hypotension, N/V, diaphoresis
Right Ventricle MI Artery
Proximal RCA
Right Ventricle MI ST Elevation
V1 V2R-V4R
Right Ventricle MI Symptoms
Tachycardia, Hypotension, JVD
Right Ventricle MI Treatment
IV fluids (maximize pre-load), + inotrope (dobutamine)
Anterior Septal MI Artery
LAD or L main
Anterior septal MI ST elevation
V1-V4
Anterior Septal Reciprocal changes
II, III, aVF
Anterior septal MI symptoms
S3 heart sound, shock, heart blocks (2nd degree II, 3rd degree), BBB, new loud murmur (papillary muscle rupture)
Lateral wall MI artery
L circumflex, LAD
Lateral wall MI ST elevation
I, aVL, V5-V6
Posterior Wall MI Artery
RCA (90%), LAD (10%)
Posterior wall MI ST elevation
posterior leads V7-V9, tall broad R wave in V1-V2
Pericarditis symptoms
Chest pain, pain improved when sitting up/leaning forward, pain worse with cough and position changes
Papillary muscle rupture associated with which MI?
Anterior or inferior wall MI
Papillary muscle rupture symptoms
hemodynamic instability, new loud systolic murmur, large V wave on PAOP waveform
Ventricular septal rupture associated with which MI?
anterior/septal wall MI
Ventricular septal rupture symptoms
acute SOB, S3 heart sound, crackle, holosystolic murmur
Cardiogenic shock clinical signs
S3, JVD, pulmonary edema, tachycardia, dysrhythmias, signs of decreased perfusion, decreased UO