MCCQE 無料問題集「Medical Council of Canada MCCQE Part 1」
A 26-year-old man presents to the office with a tender mass in his right neck. He was recently treated for a dental infection but is otherwise well. On examination, there is a 2-cm tender, mobile lymph node in the right anterior cervical chain. No other lymphadenopathy or abnormalities are found on physical examination.
Which one of the following is the best next step?
Which one of the following is the best next step?
正解：B
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A 6-year-old girl is found to have a blood pressure of 130/75 mm Hg. She was born prematurely at 32 weeks' gestation and required ventilation. There is a family history of hypertension in 3 grandparents. Clinical examination reveals a grade 1/6 mid-systolic murmur, no renal bruits, and femoral pulses are difficult to feel.
Which one of the following is the most likely diagnosis?
Which one of the following is the most likely diagnosis?
正解：E
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A 68-year-old man with a history of diabetes, hypertension, delirium tremens, and tobacco addiction comes to the Emergency Department with his daughter. She tells you that his behavior has become unmanageable and she feels he may require an increased level of care. His vital signs are:
Blood pressure: 162/105 mm Hg
Heart rate: 112/min, regular
Temperature: 37.8°C
On history, his daughter explains she had to confiscate a half-empty bottle of alcohol from his room yesterday. He is now convinced that there are bugs crawling all over him and he will not relax. He appears pale, sweaty, and shaky. His most recent blood glucose is 7.8 mmol/L (3.8-11.1). Which one of the following is the best next step?
Blood pressure: 162/105 mm Hg
Heart rate: 112/min, regular
Temperature: 37.8°C
On history, his daughter explains she had to confiscate a half-empty bottle of alcohol from his room yesterday. He is now convinced that there are bugs crawling all over him and he will not relax. He appears pale, sweaty, and shaky. His most recent blood glucose is 7.8 mmol/L (3.8-11.1). Which one of the following is the best next step?
正解：C
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You are counselling a couple that is concerned about the risk that their second child could be affected by the same X-linked recessive disorder (hemophilia A) as their last child, a boy. Neither parent has this disorder.
What is the probability that their second child will be affected?
What is the probability that their second child will be affected?
正解：E
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You are following an otherwise healthy 3-month-old girl whose severe bilateral sensorineural deafness was diagnosed after early identification through a universal newborn hearing screening program. She has reached the developmental milestones for her age and has no features of an underlying syndrome. There is no family history of hearing loss. The parents request information on the speech and language prognosis for their daughter. Which one of the following is the most appropriate response?
正解：D
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A 94-year-old woman with severe dementia is referred for vaginal bleeding and a persistent foul odour from the vagina. She lives in a long-term care facility. She has been using a ring pessary for the past 15 years. Her current pessary has not been replaced in 2 years. On examination, there is moderate vaginal atrophy. After removing the pessary, which one of the following is the best next step?
正解：D
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An otherwise healthy 43-year-old woman presents to your clinic for a left breast mass. Six months ago, she underwent a bilateral breast magnetic resonance imaging (MRI) after watching a television program on breast cancer prevention. An ultrasound-guided biopsy of a 1.5 cm massconfirmed, at the time, that she had fibroadenoma. The follow-up ultrasound now reveals a mass measuring 1.7 cm. Which one of the following is the best next step in the management of this patient?
正解：C
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A 2-year-old boy is brought by his parents to your clinic because of sudden onset of high fever, refusal to drink, and drooling. Examination reveals cervical lymphadenopathy as well as multiple ulcers on the inner lips, tongue, and gums. Which one of the following is the most likely diagnosis?
正解：C
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A 70-year-old hypertensive woman with a history of congestive heart failure (CHF) secondary to left ventricular dysfunction presents to your office with a persistent dry hacking cough. She claims it began when she was started on ramipril. Which one of the following medications would be most appropriate to replace ramipril, to ensure that the risk of morbidity associated with CHF remains low?
正解：C
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The parents of a 12-year-old boy present to your clinic to discuss their son's submersion injury. The patient was seen in hospital for 6 months after being pulled unresponsive from a lake at his friend's house; he had been submerged for an estimated 20 minutes. After extended resuscitation and a 2-month stay in the intensive care unit, he remains in a persistent vegetative state but needs no respiratory or cardiac support. When evaluating the discharge from hospital, which one of the following is most appropriate?
正解：D
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A 25-year-old woman presents to the Emergency Department with a 2-hour history of pelvic pain associated with no other symptoms. The first day of her last menstrual period was 14 days ago. On examination, her vital signs are as follows:
Blood pressure
108/72 mm Hg
Heart rate
110/min
Temperature
37 °C
Abdominal examination reveals rebound tenderness and guarding. Pelvic examination reveals exquisite left adnexal tenderness. Which one of the following is the most likely diagnosis?
Blood pressure
108/72 mm Hg
Heart rate
110/min
Temperature
37 °C
Abdominal examination reveals rebound tenderness and guarding. Pelvic examination reveals exquisite left adnexal tenderness. Which one of the following is the most likely diagnosis?
正解：C
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A 35-year-old woman, gravida 3, para 0, aborta 3, presents with her male partner because she has been unable to conceive despite trying for more than 1 year. Her menstrual cycles have been absent for 9 months, and she has occasional mild cyclic pain. She has a medical history of 3 suction curettages. Her BMI is 24.
Investigation results are as follows:
Hysterosalpingogram: Obliterated uterine cavity, no tubal dye spill
Progesterone (midluteal): 48.0 nmol/L (16.4-59.0)
Partner's semen: All parameters normal
Which one of the following is the most likely diagnosis?
Investigation results are as follows:
Hysterosalpingogram: Obliterated uterine cavity, no tubal dye spill
Progesterone (midluteal): 48.0 nmol/L (16.4-59.0)
Partner's semen: All parameters normal
Which one of the following is the most likely diagnosis?
正解：C
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A 1-week-old boy born at full term is brought by his parents to the office with a 2-day history of eye swelling and watery discharge. This morning, the discharge became thick and yellow. On physical exam, he is afebrile and fussy with bilateral eyelid edema, purulent discharge, and erythematous conjunctivae. After taking appropriate cultures of the eyes, which one of the following is the best next step?
正解：C
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A 2-month-old infant is brought by his parents to your clinic with concerns regarding his frequent crying spells. He has been crying for more than 3 hours daily for many weeks. The infant has reached all age-specific developmental milestones. Which one of the following is the most important to share with the parents regarding this situation?
正解：D
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A 77-year-old woman is brought to the Emergency Department by ambulance because she has severe heel ulcers and dehydration. Her husband reports that she has been sick for the past 6 to 8 weeks with a cough and congestion. He shares that he has tried to bring her to medical attention on several occasions, but she refused.
The paramedics reported that her bed at home was soiled and that they could hardly reach her room due to clutter. On questioning, her answers seem reasonable. Which one of the following is the most critical next step?
The paramedics reported that her bed at home was soiled and that they could hardly reach her room due to clutter. On questioning, her answers seem reasonable. Which one of the following is the most critical next step?
正解：D
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A 25-year-old woman presents to the Emergency Department with a 4-hour history of severe left flank pain.
Her vital signs are as follows:
* Heart rate: 94/min
* Blood pressure: 130/80 mm Hg
* Temperature: 37.3 °C
A non-contrast computed tomography shows a 6 mm stone in the distal left ureter with mild associated hydronephrosis. In addition to appropriate analgesia, which one of the following is the best next step?
Her vital signs are as follows:
* Heart rate: 94/min
* Blood pressure: 130/80 mm Hg
* Temperature: 37.3 °C
A non-contrast computed tomography shows a 6 mm stone in the distal left ureter with mild associated hydronephrosis. In addition to appropriate analgesia, which one of the following is the best next step?
正解：B
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A 91-year-old man comes to the Emergency Department reporting blood in his stools, which has now resolved. He is able to give a history and mentions that this also happened 2 years ago. At that time, a colonoscopy was done and revealed diverticular disease as the cause. Which one of the following is the best next step?
正解：C
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A 65-year-old woman presents to the office for follow-up regarding vaginal bleeding. Her last visit was 2 months ago. At that visit, the results of a pelvic examination and a Papanicolaou test were normal. She also had an endometrial biopsy but there was "insufficient material for diagnosis." She reports that she is still losing small amounts of blood almost every day. On history, she has been taking continuous combined hormone replacement therapy for 10 years because of vasomotor symptoms. Which one of the following is the most appropriate next step in management?
正解：A
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