A 43 year old man has felt faint and fallen when trying to stand from a chair. Investigations: Sodium 119 mmol/L, Serum osmolality 260 mOsmol/kg. Which is the most likely cause?

A 43 year old man has felt faint and fallen when trying to stand from a chair. Investigations: Sodium 119 mmol/L, Serum osmolality 260 mOsmol/kg. Which is the most likely cause?

An 18 month old girl has poor weight gain and is seen in the GP surgery. She has loose stools for several months. Which is the most likely underlying cause?

A 31 year old woman has increasing shortness of breath and left-sided pleuritic chest pain for 1 week. Which is the most likely diagnosis?

A 55 year old man has difficulty breathing after being stabbed with a knife in the right side of his neck. Which nerve is most likely damaged?

A 35 year old woman has recurrent retrosternal discomfort after eating food for the last 3 months. Which is the most appropriate management approach?