Pass the Medical Council of Canada MCCQE Part 1 MCCQE Questions and answers with CertsForce

Fibroadenomas can grow slightly or fluctuate in size. A minimal increase (from 1.5 cm to 1.7 cm) over six months is clinically insignificant. No malignant features are reported, and the previous biopsy confirmed benign nature. Annual follow-up is appropriate.

Toronto Notes 2023 – Obstetrics and Gynecology, “Breast Disorders” Section:

“Fibroadenomas are benign breast masses that may slightly enlarge. Routine imaging follow-up at 6 to 12 months is appropriate for lesions with benign imaging and histology.”

MCCQE1 Objectives (Obstetrics and Gynecology > 82-3: Breast Mass):

“Candidates must distinguish between benign and suspicious masses and determine appropriate intervals for follow-up imaging.”

Repeat biopsy (A) or surgery (B) is unwarranted without suspicious change. MRI (C) is not needed in stable, benign lesions. Tamoxifen (D) is not used for fibroadenomas.

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This patient has a Stanford type B aortic dissection , involving the descending thoracic aorta distal to the left subclavian artery, with no evidence of branch vessel compromise or rupture. MCCQE objectives emphasize that uncomplicated type B dissections are managed medically , whereas type A dissections (ascending aorta) require urgent surgical repair.

The immediate priority is to reduce shear stress on the aortic wall by controlling heart rate and blood pressure . Intravenous beta-blockers such as labetalol or esmolol are first-line therapy. The goal is to reduce heart rate to approximately 60 bpm and lower systolic blood pressure to 100–120 mm Hg. This decreases the force of left ventricular contraction (dP/dt), limiting propagation of the dissection.

Endovascular or open repair is reserved for complicated cases (e.g., malperfusion, rupture, refractory pain, uncontrolled hypertension). Anticoagulation with heparin is contraindicated due to bleeding risk. Observation alone without blood pressure control is inappropriate.

Therefore, intravenous labetalol is the best next step.

Patient education is foundational in managing fibromyalgia. Understanding the chronic but non-progressive nature of the disease, reassurance, and emphasis on self-management are crucial. It helps set realistic expectations and enhances engagement in therapy.

Toronto Notes 2023 – Rheumatology, Fibromyalgia:

“Patient education is essential. Explain the nature of fibromyalgia, emphasizing that although it is chronic, it is non-deforming and can be managed through exercise, sleep hygiene, and cognitive strategies.”

MCCQE1 Objectives – Psychiatry & Rheumatology > Chronic Pain Syndromes:

“Candidates must recognize the value of education and behavioral interventions in managing functional syndromes.”

SSRIs (D) may be used if depression is present. Iron/B12 (B) are not indicated without evidence of deficiency. Cannabinoids (A) lack strong evidence in fibromyalgia.

In elderly women with long-term pessary use and signs of vaginal atrophy (thin epithelium, bleeding, odor), local estrogen is the most appropriate initial treatment to restore the vaginal epithelium and reduce inflammation and discharge. Vaginal estrogen improves mucosal integrity and reduces complications like ulceration, infection, and bleeding.

Toronto Notes 2023 – Gynecology, “Pelvic Organ Prolapse and Pessary Care” Section:

“Local vaginal estrogen therapy is recommended for postmenopausal women with vaginal atrophy who are using pessaries. It reduces the risk of erosions, bleeding, and infection, especially when pessary follow-up has been suboptimal.”

MCCQE1 Objectives (Obstetrics and Gynecology > 82-9: Vaginal Bleeding in Postmenopausal Women):

“Candidates should recognize vaginal atrophy as a common and treatable cause of bleeding in elderly women using pessaries.”

A biopsy (E) may be needed if symptoms persist after atrophy is treated. Hysteroscopy (A) is invasive and not first-line in this setting. Metronidazole (B) is not indicated without evidence of bacterial vaginosis. Daily saline douching (D) is not recommended and may irritate atrophic mucosa.

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In postmenopausal women with severe vasomotor symptoms, hormone therapy (estrogen with progesterone in women with an intact uterus) is the most effective treatment. It improves hot flashes, sleep, and mood symptoms.

Toronto Notes 2023 – Gynecology, Menopause Management:

“Combination hormone therapy is first-line for moderate to severe menopausal symptoms. Non-hormonal agents may be considered if contraindications exist.”

MCCQE1 Objectives – Gynecology > Menopause:

“Candidates must recognize the indication and benefits of hormone therapy for vasomotor symptoms in appropriate patients.”

Lifestyle changes (A) are supportive but insufficient. Primrose oil (C) lacks robust evidence. SSRIs (D) and clonidine (E) are second-line.

Elevated hemoglobin in the absence of polycythemia vera can be due to secondary causes such as chronic hypoxia. Central sleep apnea, often associated with diabetes or neurologic conditions, leads to intermittent hypoxia and compensatory erythropoiesis.

Toronto Notes 2023 – Hematology and Respiratory Medicine, “Polycythemia” Section:

“Secondary erythrocytosis may result from hypoxic conditions including sleep apnea, COPD, or high altitude. Assess for sleep-disordered breathing in patients with elevated hemoglobin and no myeloproliferative features.”

MCCQE1 Objectives (Internal Medicine > 76-7: Hematologic Abnormalities):

“Candidates must investigate secondary causes of elevated hemoglobin, including hypoxia-related conditions.”

Hypertension (A), hypothyroidism (C), and cirrhosis (D) do not cause polycythemia. Alcohol (B) typically causes macrocytosis and anemia.

Comprehensive and Detailed Explanation:

This neonate likely has gonococcal conjunctivitis, which typically presents 2–5 days after birth with bilateral purulent discharge and swelling. This is an emergency due to the risk of corneal perforation. Empiric IV antibiotics and hospital admission are indicated.

Toronto Notes 2023 – Pediatrics, Neonatal Infections:

“Neonatal conjunctivitis within the first 1–2 weeks should raise suspicion for gonococcal or chlamydial infection. Gonorrhea requires urgent IV antibiotics and hospitalization.”

MCCQE1 Objectives – Pediatrics > Neonatal Infection:

“Candidates must recognize neonatal conjunctivitis and initiate empiric treatment while awaiting culture results.”

Lacrimal massage (E) and warm compresses (D) are used for nasolacrimal duct obstruction. Oral or topical antibiotics (B, C) are insufficient for suspected gonococcal infection.

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This patient presents with fever, chills, anorexia, and right upper quadrant (RUQ) pain several weeks after hospitalization for sigmoid diverticulitis . A key complication of intra-abdominal infections such as diverticulitis is portal pylephlebitis with hepatic abscess formation , due to bacterial spread via the portal venous system. MCCQE objectives emphasize recognizing liver abscess as a delayed complication of intra-abdominal sepsis, particularly when new RUQ pain and fever develop after an initial abdominal infection.

The most appropriate initial imaging test to confirm this diagnosis is ultrasound of the abdomen , which can detect hepatic abscesses and guide further management. CT abdomen is also highly sensitive, but among the listed options, ultrasound is most appropriate.

Chest and abdominal radiographs are nonspecific. HIDA scan evaluates cystic duct obstruction in suspected acute cholecystitis, which is less likely given the recent diverticulitis and systemic features. ERCP is used for biliary obstruction or ascending cholangitis, typically associated with jaundice.

Thus, abdominal ultrasound is most likely to confirm a hepatic abscess.

The patient has chronic non-cancer pain with comorbid PTSD and alcohol misuse — high-risk factors for opioid use disorder. Before any opioid prescribing, a comprehensive interdisciplinary approach including mental health and substance use support is essential.

Toronto Notes 2023 – Pain Management and Addiction Medicine:

“In chronic pain patients with substance use or mental health comorbidities, refer to addiction/mental health services before considering opioid therapy.”

MCCQE1 Objectives (ELOM > 99-4: Safe Prescribing):

“Candidates must assess for substance use risk factors and manage chronic pain using a multidisciplinary approach.”

Imaging (A) is unlikely to alter management. Opioids (B, C) should not be first-line in this context. Cannabis (E) is not first-line and lacks robust evidence in complex chronic pain.

In a patient with known diverticular bleeding and no red flags (e.g., weight loss, anemia, family history), repeating colonoscopy is not required. Diverticular bleeding is typically self-limited. Colonoscopy within the past few years with clear findings suffices.

Toronto Notes 2023 – Gastroenterology, Lower GI Bleed:

“Patients with known diverticulosis and self-limited bleeding who have had prior complete colonoscopy do not require repeat endoscopy unless symptoms recur or persist.”

MCCQE1 Objectives – Internal Medicine > Gastroenterology:

“Candidates must recognize when no further invasive investigation is necessary in elderly patients with known benign findings and resolved symptoms.”

Option E is considerate but not clinically necessary for independent patients. Options A, B, and D are not indicated in resolved, low-risk cases.