You are caring for mr. adam, a 19 year old male admitted after he tripped and experienced a 30 foot fall while out hiking. he has broken ribs, a fractured femur and collarbone. you identify his cardiac rhythm on the monitor as sinus rhythm with premature atrial contractions (pac). you go in to evaluate him. he is sitting in bed watching television. you ask him how he is feeling. what is his most likely response?

An 80-year-old woman comes to the urgent care clinic with dyspnoea on exertion. on physical examination, her blood pressure is 100/70, and her pulse is 75. she has no pulsus paradoxus. her jugular veins are distended, and she has distant heart sounds. in addition, she has extra third and fourth heart sounds. her liver is enlarged, and she has pedal oedema. she has occasional premature ventricular contractions on her electrocardiogram. a chest x-ray reveals clear lung fields with a dilated cardiac silhouette. her echocardiogram reveals ventricular walls with a "speckled pattern". which of the following is the most likely diagnosis? - alcoholic cardiomyopathy- amyloidosis- haemochromatosis- tuberculosis- viral myocarditis