An 83-year-old male who was on the telemetry unit for a hear…

An 83-year-old male who was on the telemetry unit for a heart failure exacerbation has been transferred to the intensive care unit due to new onset atrial fibrillation with a rapid ventricular response. He was given a diltiazem bolus followed by a continuous diltiazem infusion without successful rate control. It has been less than 48 hours and direct current cardioversion is being considered. The success of electrical cardioversion is inversely proportional to which of the following?

A 56-year-old male with 30-pack year smoking history, CAD, a…

A 56-year-old male with 30-pack year smoking history, CAD, and advanced liver disease due to alcoholic cirrhosis is being evaluated for a liver transplantation. He complains of worsening shortness of breath. His heart rate is 110/min, blood pressure is 97/64 mm Hg, respiratory rate is 32/min, and saturation 90% on 5 L/min nasal cannula. When asked to sit up in bed, the patient states that he “usually breathes better” when lying supine.  Which of the following is the MOST likely pathophysiology behind the diagnosis?

Again, remember that your webcam must be pointed so that BOT…

Again, remember that your webcam must be pointed so that BOTH hands and your desktop AND your face can be clearly seen for the entire duration of the quiz. Note that this needs to be a front view of your face. This quiz is closed book. The use of any resources including devices, websites or notes, is a violation of academic integrity.  Failure to follow the rules of this quiz will result in a ZERO on the quiz.