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Step III

Step III - Cardio 4

what rx should be strictly avoided in dig toxicity pt CCB
Transient ST-segment elevations, substernal chest pressure both at rest and during activity that worsens in the morning and with smoking Prinzmetal angina
Old MI are represented by what waves on EKG Q waves
Transient or sustained ST depression = Ischemia
What heart vessel is usually damaged in AV nodal block RCA
What is the physio problem behind HCM Diastolic dysfx
What is physio problem w/ dilated CM systolic dysfx d/t R and L heart failure
decreased ventricular wall compliance causing the inability of the left ventricle to fill is what CM restrictive CM (diastolic)
abnormality of the tricuspid valve seen in pediatric populations and is associated with maternal lithium use Ebstein’s anomaly
THIAZIDE diuretics cause what e- changes hyperglycemia, hypercalcemia, hyperuricemia, hyponatremia, and hypokalemia
AE HCTZ Metabolic syndrome: HTN, obesity, dyslipidemia
Primary cause of HTN Essential HTN
MC secondary cause of HTN Renal aa stenosis
Harsh blowing, holosystolic murmur radiating from cardiac apex to the axilla, loud S1, presence of S3, widely split S2, midsystolic click Mitral regurgitation
Opening snap heard after S2 with diastolic rumble, loud S1 Mitral stenosis
Wide pulse pressure with diastolic decrescendo murmur heard at right 2nd intercostal space, late diastolic rumble (Austin-Flint murmur), bounding pulses Aortic regurgitation:
Weak and prolonged pulse, crescendo-decrescendo systolic murmur with radiation to the neck/carotids, weak S2, murmur decreases with valsalva Aortic stenosis
Management of asystole or pulseless electrical activity (PEA) cycles of CPR and 1mg doses of epinephrine via IV or IO, repeated every 3-5 minutes. Vasopressin is also an alternative to the first or second dose of epinephrine.
Rx for supraventricular tachycardia Adenosine
stable, undifferentiated regular, monomorphic wide-complex tachycardia adenosine
electrical shock-refractory ventricular tachycardia (VT) or ventricular fibrillation (VF) Amiodarone
What drug was removed from AHA guidelines in 2010 atropine
Adult compression depth now is “at least 2 inches”.
For children 1-8yo, what kind of defib should be used dose attenuator for defibrillation >> AED
For infants, what kind of defib should be used manual defibrillation >> dose attenuator > standard AED
Pediatric defibrillation dose is 2-4J/kg. Initially try 2J/kg, then 4J/kg, max is 10J/kg
Afib cardioversion is 120-200J biphasic or 200J monophasic
Atrial flutter or supraventricular rhythm cardioversion is 50-100J.
Stable monomorphic VT initial cardioversion energy is 100J
Precordial thumb should not be used for un-witnessed out-of-hospital cardiac arrest. use for witnessed monitored unstable VT, but do not delay CPR
Atropine no longer recommended for asystole/PEA
Created by: DrINFJ



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