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An 83-year-old woman presents to your office with a 2-day history of confusion. Her past medical history is significant for lung cancer, and she is being treated with radiation. On physical examination, she is euvolemic. Her blood work reveals a serum sodium of 118 mmol/L (135–140) as compared with 134 mmol/L (8 days ago). Which one of the following will be most helpful in establishing the cause of her laboratory abnormality?

A 22-year-old woman is brought to the Emergency Department by her boyfriend, who says that she is experiencing a fentanyl overdose. She is unresponsive and cyanotic. She regains consciousness after naloxone is injected intravenously and demonstrates no further respiratory depression during 8 hours of observation. She states that she is 22 weeks' pregnant and wants to stop using opioids. Which one of the following is the best next step?

A 59-year-old woman comes to the office because her 48-year-old sister was recently diagnosed with cervical cancer. Your patient thinks her mother may have also had cervical cancer. A Papanicolaou (Pap) test performed 16 months ago had normal results, as did all previous Pap tests. Which one of the following is the best next step?

There are many expenses which are considered part of providing care to patients. Under Canadian legislation, which one of the following is an acceptable means of covering these costs?

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?