A three week old baby is brought in by her concerned parents She is vomiting substantially after feeds and is failing to gain weight. Investigation reveals an alkalosis and a low serum potassium.
The alkalosis is most likely to be due to which mechanism?

You are treating a patient with left ventricular failure and decide to revise some cardiovascular physiology to help you understand the likely response to treatment Which statement best describes Starling's law in relation to cardiac output?

A 71 year old man with a history of heart failure and type II diabetes mellitus presents with an acute, painful, swollen first metatarsophalangeal joint in his foot You suspect gout.
Which treatment would be most appropriate for the acute management of this patient*?

A 24 year old man sustains an injury to his right eye The x-rays confirm an orbital floor fracture He complains of double vision on upward gaze Entrapment of which muscle is most likely responsible for his symptom?

An 80 year old man presents to the ED with clinical features suggestive of ischaemic bowel Which artery is most commonly occluded in this condition?