During an office visit, your 14-year-old patient requests a prescription for oral contraceptives. The province where you are working does not have a statutory age of consent. Which one of the following is the best next step?
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?
A 69-year-old man presents with a 4-day history of a painful right knee. On history, he denies any trauma or similar previous episodes. Examination reveals effusion of the right knee that is warm to the touch. Which one of the following is the best next step?
A 32-year-old woman presents to your outpatient clinic with concerns regarding a 6-month history of both a pulsatile buzzing sound in her ears and headaches. There is no history of hearing loss, vertigo, ear pain, or discharge from the ears. There is a long-standing history of prolonged exposure to occupational noise. She has a BMI of 32. Otoscopic examination is unremarkable, and there are no neck masses present. You determine that the buzzing sound is synchronous with her radial pulse. Which of the following investigations should be ordered next?