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- VSD, RV systolic pressure= SBP-VSD gradient (VSD gradient=4xsquare of velocity at VSD)
- Inferior Q waves, pulmonary edema, TTE technically limited, mitral valve not well visualized, jet of MR dificult to quantitate - do TEE and surgical consultation
- Innocent murmur is usually midsystole
- In ETT, leads that manifest ST-segment elevation during exercise localize anatomic regions of ischemia
- CAD is the most common condition associated with sudden cardiac death in the United States
- High-grade AV block after overdose of diltiazem and metoprolol - IV glucagon, TPM
- Slow ventricular rate and pauses more than 3 seconds that correlate with symptoms, normal LV function and no evidence of CAD - Permanent pacemaker implant
- Pacemaker syndrome - symptoms usually include fatigue, dizziness, and hypotension
- Dofetilide increases the risk for torsades de pointes because of reverse-use dependence that is exacerbated by bradycardia