ModerateCardiovascularAcute heart failure with pulmonary oedemauk-plab-1
A 76 year old man with a history of myocardial infarction presents with acute onset severe breathlessness at rest. He is tachypnoeic with bibasal crackles to the mid zones and marked peripheral oedema. Blood pressure is 170/100 mmHg and oxygen saturation 90 percent on air. What is the most appropriate immediate drug treatment in addition to high flow oxygen and intravenous access?