Free Practice Questions for Medical Council of Canada MCCQE Exam

This patient’s symptoms of polyuria, polydipsia, and recurrent vaginitis are classic for type 2 diabetes mellitus (T2DM) . Recurrent vaginal candidiasis occurs due to glycosuria promoting yeast overgrowth. MCCQE objectives emphasize identifying risk factors and historical features supporting diabetes. A prior delivery of a macrosomic infant ( > 4000–4500 g) is strongly associated with gestational diabetes mellitus (GDM) , which significantly increases the future risk of developing T2DM. Therefore, a history of macrosomia supports undiagnosed or previous gestational hyperglycemia and increases suspicion for current diabetes.

High-risk sexual behaviors relate to sexually transmitted infections, not diabetes. Family history of hypertension is a cardiovascular risk factor but does not specifically support diabetes. Recent antibiotic use may predispose to candidiasis but would not explain polyuria and polydipsia. Dry eyes are more suggestive of autoimmune conditions (e.g., Sjögren syndrome).

Thus, prior delivery of a macrosomic newborn strengthens the likelihood that her current symptoms are due to type 2 diabetes mellitus.

For pregnant women with hepatitis C infection , vertical transmission risk is approximately 5–6% and is higher with high maternal viral load or HIV coinfection. However, MCCQE objectives emphasize that breastfeeding is not contraindicated in mothers with hepatitis C, as HCV is not transmitted through breast milk. Breastfeeding should only be temporarily avoided if there are cracked or bleeding nipples, which could expose the infant to blood.

Termination of pregnancy is not recommended solely due to hepatitis C infection. Pregnancy does not reliably increase viral load in a clinically significant way, and routine antiviral therapy during pregnancy is generally not recommended because current direct-acting antivirals are not yet standard in pregnancy. The infant does not automatically require antiviral treatment; instead, postnatal monitoring with HCV RNA testing and/or antibody testing at the appropriate age is recommended. While chronic hepatitis C increases long-term risk of cirrhosis and hepatocellular carcinoma, this is not an inevitable outcome.

Therefore, reassuring her that breastfeeding is safe is the most appropriate counselling point.

This clinical presentation is highly suggestive of chronic pelvic inflammatory disease (PID), especially given the left lower quadrant pain and dyspareunia with a normal pelvic ultrasound. PID is often caused by sexually transmitted infections (STIs), such as Chlamydia trachomatis or Neisseria gonorrhoeae, which may not be evident on imaging.

Toronto Notes 2023 – Gynecology:

“Cervical swabs for N. gonorrhoeae and C. trachomatis are essential in the workup of suspected PID or cervicitis, even when imaging is normal. Dyspareunia and chronic pelvic pain with normal imaging should prompt testing for STIs.”

MCCQE1 Objectives (Obstetrics & Gynecology > 82-6: Pelvic Pain):

“Candidates must consider and investigate for infectious causes of pelvic pain, including PID, which requires cervical swab testing as an essential first-line investigation.”

Laparoscopy (A) is invasive and reserved for uncertain or refractory cases. Hysterosalpingography (C) is used in infertility workups, not acute pain. Endometrial biopsy (D) and MRI (E) are not first-line.

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Comprehensive and Detailed Explanation:

The patient is in a persistent vegetative state and medically stable, meaning he does not need continued hospitalization. The goal is to provide appropriate long-term care in the least restrictive setting, typically at home with robust home care support services. This approach aligns with ethical care, family-centered goals, and medical appropriateness.

Toronto Notes 2023 – Pediatrics / Neurodevelopment & Chronic Care:

“Home care with appropriate medical and caregiver support is often the best setting for children with severe neurological impairments who are medically stable.”

MCCQE1 Objectives (Pediatrics > 77-5: Chronic Neurological Disorders):

“Candidates must assess discharge planning and coordinate home care support for children with long-term care needs.”

Palliative facility (B) is not appropriate unless end-of-life is imminent. School (C) is not feasible in this state. Hospital readmission for respite (D) is not standard. Rehabilitation (E) has little utility in persistent vegetative state.

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Comprehensive and Detailed Explanation:

Epidural analgesia is associated with increased maternal intrapartum fever due to non-infectious (neurogenic) thermoregulation impairment. This is a well-known phenomenon in laboring women.

Toronto Notes 2023 – Obstetrics / Anesthesia:

“Epidural analgesia increases risk of intrapartum fever by up to 20% via non-infectious mechanisms.”

MCCQE1 Objectives (Obstetrics > 80-5: Intrapartum Care):

“Candidates must recognize risk factors for intrapartum complications, including effects of epidural use.”

Multiparity (A), precipitous labor (B), and maternal age (C) are not established risk factors for intrapartum fever.

A first-degree relative with colorectal cancer diagnosed before age 60 places this patient in an increased-risk screening category. For individuals with one first-degree relative diagnosed with colorectal cancer (or advanced adenoma) before age 60, recommended screening is colonoscopy starting at age 40, or 10 years earlier than the age at diagnosis in the affected relative—whichever comes first—then repeated at shorter intervals than average-risk screening (often every 5 years if results are normal, depending on local guidance and findings). Here, her father was diagnosed at 55, so “10 years earlier” would be age 45; however, the “whichever comes first” rule makes age 40 the correct start. Average-risk strategies such as FIT starting at 50 are not sufficient for this risk level. Flexible sigmoidoscopy alone is less appropriate because it does not evaluate the proximal colon and is not the preferred increased-risk test. Double-contrast barium enema is obsolete for screening, and CT colonography is not first-line in this context. MCCQE objectives emphasize tailoring screening to family-history risk and selecting the appropriate test and start age.

The clinical picture is most consistent with acute pancreatitis (alcohol-related, epigastric pain radiating to back, vomiting, and ileus). CT abdomen with contrast is the best diagnostic tool if the diagnosis is uncertain or complications are suspected.

Toronto Notes 2023 – Gastroenterology, “Pancreatitis”:

“CT abdomen is indicated when diagnosis is unclear, symptoms are severe, or complications (e.g., necrosis, ileus) are suspected.”

MCCQE1 Objectives (Gastroenterology > 47-1: Acute Abdominal Pain):

“Candidates must investigate acute epigastric pain appropriately, especially in the context of alcohol use and systemic features.”

Ultrasound (B) is first-line for gallstones but not best here. Laparotomy (A) is not warranted without peritonitis or perforation. Endoscopy (D) is not indicated. Sengstaken-Blakemore (E) is for variceal bleeding, which is not suspected here.

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This presentation describes normal developmental dysfluency, which typically occurs between ages 2–5 and often worsens during times of stress or change, such as a new sibling. It is characterized by word repetition and does not require intervention unless it persists > 6 months, worsens, or causes distress.

Toronto Notes 2023 – Pediatrics, " Developmental and Behavioral Pediatrics " Section:

“Developmental stuttering is common between 2–5 years and often resolves without intervention. Reassurance is appropriate unless there are signs of persistent or severe stuttering, secondary behaviors, or parental concern.”

MCCQE1 Objectives (Pediatrics > 78-1: Development and Behavior):

“Candidates must recognize typical patterns of developmental speech dysfluency and differentiate them from pathological speech disorders. Observation and reassurance are often the appropriate initial step.”

Because the child is otherwise developing normally and the onset coincides with a known psychosocial stressor, reassurance is the most appropriate step. Formal speech or behavioral therapy is not indicated at this time.

This patient’s presentation—knee effusion with a soft tissue mass in the popliteal fossa following exertion—is classic for a Baker (popliteal) cyst , which represents distention of the gastrocnemius–semimembranosus bursa, often associated with intra-articular pathology (e.g., meniscal injury or osteoarthritis). MCCQE objectives emphasize selecting the least invasive, most appropriate imaging modality to confirm suspected cystic lesions.

Ultrasound is the best initial diagnostic test because it is noninvasive, readily available, and highly sensitive for distinguishing a cystic structure from a solid mass or vascular pathology (e.g., popliteal artery aneurysm or deep vein thrombosis). It can also assess for complications such as cyst rupture.

Arthroscopy is invasive and not required for diagnosis. Arthrocentesis evaluates joint effusion but does not confirm a popliteal cyst. Aspiration of the mass without imaging is inappropriate due to risk of vascular injury. CT is unnecessary and exposes the patient to radiation.

Therefore, ultrasound is the preferred method to confirm a Baker cyst.

MCCQE objectives emphasize the distinction between ethical obligations and legal duties in emergency “Good Samaritan” situations. Physicians generally do not have a legal obligation to provide care outside of a formal physician–patient relationship, nor are they legally required to accompany a patient to hospital. Good Samaritan laws are designed primarily to protect healthcare providers from liability when they voluntarily provide emergency assistance in good faith and within the scope of their competence; they do not compel physicians to act.

Professional ethical standards, however, state that physicians should render reasonable assistance in emergencies , considering their own safety, competence, and available resources. This reflects the profession’s commitment to beneficence and social responsibility. In this case, the physician appropriately provided emergency resuscitation. Subsequent poor outcome (irreversible brain injury due to hypoglycemia) does not imply negligence if care was reasonable and provided in good faith. Therefore, the most accurate statement is that professional ethics require physicians to render reasonable