Question 51
A 34-year-old man presents to your office with a 2-week history of headaches and double vision when he looks to the right. On physical examination, you note that he is unable to gaze laterally with his right eye.
Which one of the following cranial nerves is most likely affected?
Question 52
A 64-year-old man presents with a 3-month history of gradually increasing neck pain and stiffness. The pain radiates into his upper back, and he is having difficulty driving because of limitation of neck rotation secondary to pain. Physical examination shows restricted neck motion in all directions and neck muscle spasms. There is no abnormality on neurologic examination. A radiograph shows narrowing of all of the cervical disc spaces with prominent osteophytes. Which one of the following is the most appropriate next step?
Question 53
A 35-year-old man comes to your office with a history of headaches that last 1 hour and are relieved by 1000 mg of acetaminophen. These headaches, which started 6 months ago after he got his first job as a lawyer, occur regularly. The patient wants a computed tomography scan of his head to rule out a tumour. Physical examination reveals no abnormality. Review of systems does not contribute any positive findings. Which one of the following is the best management?
Question 54
A 24-year-old woman with chronic anorexia nervosa presents to the Emergency Department with diarrhea, chest pain and palpitations. She is noted to have a BMI of 13, a heart rate of 48/min, significant orthostatic hypotension and a temperature of 35.9 °C. Her electrocardiogram shows frequent premature ventricular contractions. Her blood work indicates elevated liver transaminases and evidence of acute kidney injury from dehydration. She agrees to admission for medical stabilization only if she does not receive fluids either orally or intravenously, as they will cause her to gain weight and to feel bloated. Which one of the following is the best next step?
Question 55
A 62-year-old woman is referred to your clinic for evaluation of hypercalcemia. She has a history of hypertension and vitamin D deficiency. Her medications include hydrochlorothiazide and vitamin D supplements. Laboratory investigations are as follows:
* Calcium: 2.72 mmol/L (#)
* Phosphate: 0.9 mmol/L (#)
* Parathyroid hormone (PTH): 0.9 pmol/L (#)
* 25-hydroxy vitamin D: 80 nmol/L (normal)
Which one of the following is the best next step?