Cardiology Facts 51

  • Subendocardial myocardium is most vulnerable to hypoperfusion (ischemia) 
  • No antiplatelet agent in pulmonary embolism 
  • Joint pain, tanned complexion, low voltages, high blood glucose, high LFTs, restrictive filling pattern - hemochromatosis, CMR is imaging test of choice 
  • Argatroban has hepatic clearance and is best treatment if heparin associated antibodies present +severe renal failure+need for anticoagulation 
  • Takayasu arteritis onset is typically during teenage  
  • Nitrates directly relax vascular smooth muscle
  • s/p aortic valve & root replacement, on aspirin & warfarin, GI bleeding from gastritis - discontinue aspirin
  • Estradiol use, dyspnea on exertion, chest discomfort with deep inspiration, tachycardia, tachypnea, hypoxia - diagnosis pulmonary embolism, TR is associated with higher risk of mortality 
  • Popliteal artery aneurysm - treatment repair
  • Prominent R wave in electrocardiographic lead Vare seen in RVH, WPW syndrome, duchenne muscular dystrophy, displacement of chest leads. In left anterior fascicular block, amplitude of R waves in V1 is diminished