List of top Medicine Questions on Cardiovascular system asked in NEET MDS

An 82-year-old patient with hypertension comes with acute onset of breathlessness. Chest X-ray is shown below. What should be done next?
An adult patient complains of palpitations and presents with an irregularly irregular pulse. Pulse deficit is 20, HR=120/min, in BP 110/70 mm Hg. Which of the following will be found in this patient?