A 45 year old man is brought into the ED by the police following a witnessed seizure. He is suspected to be alcohol dependent Which haematological index best suggests this dependence?

A 70 year old woman presents to the ED with symptoms and signs suggestive of sepsis Her BP is 80/40 You think her low BP is because of a drop in the systemic vascular resistance Which type of blood vessels are most likely implicated in causing her hypotension?

A 53 year old man on anticoagulation presents with pain over his anterior abdomen following an episode of coughing A CT scan identifies an isolated haematoma within the rectus sheath above the arcuate line Which artery is most likely to have been injured?

A two year old child presents with a barking cough You suspect croup Which virus is most likely to be implicated?

A 50 year old man complains of pain and reduced movements of the shoulder joint after a fall. He is unable to initiate abduction of his arm Which muscle is most likely to be injured?