A 34 year old man presents with bruising and swelling over the anterior arm after lifting weights at the gym.
There is pain and weakness on attempted internal rotation and adduction of the shoulder.
Rupture of which muscle best explains these findings?

A 47 year old woman with a diagnosis of pulmonary hypertension attends the ED with breathlessness An increase in which physiological parameter is the most likely consequence of this condition?

You see a patient with steatorrhea, weight loss and abdominal pain You suspect they have exocrine pancreatic insufficiency The secretion of which substance is least likely to be affected by this condition?

A 26 year old man sustains a stab wound to the anterior aspect of the left side of his neck The wound involves the thoracic inlet Which structure is most likely to be encountered and injured first?

You are treating a patient with an acute exacerbation of COPD and they remain wheezy after two doses of nebulised salbutamol You decide to add nebulised ipratropium to improve bronchodilation Which receptors are most likely to be targeted by this treatment?