This patient has a grade III splenic laceration successfully managed non-operatively. MCCQE surgical objectives emphasize that in hemodynamically stable patients, non-operative management (NOM) is standard for many blunt splenic injuries to preserve splenic function. Because the spleen remains intact, vaccination against encapsulated organisms is not required (this is indicated after splenectomy or functional asplenia).

Prior to discharge, the most important counseling point is activity restriction to reduce the risk of delayed splenic rupture. Patients are advised to avoid vigorous physical activity, contact sports, and heavy lifting for approximately 3 months , depending on injury severity and follow-up imaging protocols. This allows adequate healing of splenic parenchyma.

Routine interval splenectomy is not indicated after successful NOM. Angiography with embolization is reserved for ongoing bleeding or vascular blush on imaging. Weekly hemoglobin checks are not routinely required if the patient is clinically stable.

Thus, counseling regarding avoidance of vigorous activity is the key discharge recommendation.

This infant was born late preterm (36 weeks) with asymmetric intrauterine growth restriction (IUGR) and remains at the 3rd percentile. Although he is breastfeeding well, infants with IUGR and late prematurity often require enhanced caloric intake to support catch-up growth. MCCQE objectives emphasize optimizing postnatal nutrition in growth-restricted infants to promote appropriate weight gain while monitoring growth velocity.

Caloric fortification of expressed breast milk (or use of higher-calorie formula if needed) increases energy density without increasing feeding volume, supporting growth in infants who are small for gestational age. Simply continuing standard feeds may not provide sufficient calories for catch-up growth.

High-dose vitamin D is not indicated; routine supplementation (400 IU daily) is appropriate for breastfed infants. Early introduction of solids is not recommended before about 6 months of age. Switching to hydrolyzed formula is unnecessary without evidence of milk protein allergy.

Therefore, caloric-fortified feeding is the most appropriate next step to promote optimal growth in this infant.

Obsessive-compulsive disorder (OCD) is a chronic and often relapsing condition. MCCQE objectives emphasize that patients with severe OCD requiring hospitalization or prolonged high-dose SSRI therapy are at significant risk of relapse if medication is discontinued. This patient has remained stable for 2 years on a high dose of paroxetine after inpatient treatment, suggesting a history of more severe disease.

For moderate-to-severe or recurrent OCD, long-term or indefinite maintenance pharmacotherapy is often recommended, particularly when the patient has responded well and tolerated the medication. Abrupt discontinuation or large dose reductions (e.g., 50%) increase the risk of relapse and discontinuation syndrome, especially with paroxetine, which has a short half-life. Switching to another SSRI is unnecessary when the current medication is effective and tolerated. Supportive psychotherapy alone is generally insufficient for patients with previously severe OCD.

Therefore, the most appropriate recommendation is to maintain the current dosage , while discussing risks and benefits and reassessing periodically.

Low HDL is best managed with lifestyle changes such as increased aerobic physical activity, smoking cessation, and weight loss. Vigorous exercise has the strongest evidence for raising HDL levels.

Toronto Notes 2023 – Cardiology, Dyslipidemia:

“Increasing physical activity is among the most effective ways to raise HDL cholesterol. There is no consistent benefit to supplements such as garlic, nor does reducing salt or caffeine meaningfully raise HDL.”

MCCQE1 Objectives – Population Health > Cardiovascular Risk Management:

“Candidates should recommend evidence-based lifestyle interventions such as exercise to improve lipid profiles, particularly to increase HDL.”

Alcohol cessation (C) is generally beneficial for overall health but may actually lower HDL slightly. Garlic (D) and caffeine (E) are not evidence-based interventions for dyslipidemia.

Comprehensive and Detailed Explanation:

The levonorgestrel-releasing intrauterine device (LNG-IUD) is generally contraindicated in current or recent breast cancer due to the progestin component, but may be considered in select patients on tamoxifen, especially if non-hormonal options are unsuitable. Consultation with the oncologist is required to evaluate risks and benefits.

Toronto Notes 2023 – Gynecology, “Contraception in Special Populations”:

“Levonorgestrel IUDs are generally avoided in patients with a history of hormone-sensitive cancers; however, decisions should be made collaboratively with oncology.”

MCCQE1 Objectives (Gynecology > 82-2: Contraception):

“Candidates must tailor contraceptive advice to patients with medical comorbidities, including cancer survivors.”

Irregular bleeding (A) is a common but not contraindicating side effect. No pre-procedure antibiotics (D) are typically needed. The IUD does not cause infertility (E). Risk of recurrence (C) is unconfirmed and must be individualized.

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This presentation is most consistent with acute bronchiolitis, which classically affects infants under 2 years (peak 2–6 months) and begins with upper respiratory symptoms (coryza, cough, low-grade fever) followed by increased work of breathing, tachypnea, and wheeze. The most common causative agent is respiratory syncytial virus (RSV), making it the best answer. Parainfluenza virus is more strongly associated with croup (barking cough, inspiratory stridor, hoarseness). Chlamydia trachomatis pneumonia typically occurs in young infants with a staccato cough, afebrile course, and may be associated with conjunctivitis rather than acute wheezing after coryza. Human metapneumovirus can cause bronchiolitis-like illness but is less common than RSV. Influenza A often produces higher fever and systemic symptoms and is not the leading cause of bronchiolitis in this age group. MCCQE objectives emphasize recognizing bronchiolitis clinically and identifying RSV as the predominant pathogen in infants with this classic progression of symptoms.

In an interdisciplinary hospital team, sharing relevant clinical information with other regulated health professionals involved in the patient’s care is generally appropriate under the “circle of care” principle. The physiotherapist’s concern about medication is clinically relevant because medications can affect mobility, cognition, balance, blood pressure, sedation, and rehabilitation safety—issues directly within the physiotherapist’s role. Requiring written consent (A) is unnecessarily restrictive in routine team-based care; implied consent is typically sufficient when information sharing is for the patient’s ongoing treatment and limited to what is necessary. Refusing to discuss because the physiotherapist does not prescribe (B) misunderstands collaborative care: team members must understand medication effects to plan safe therapy. Contacting the patient each time (C) is usually not required for routine care communication and may delay addressing a potential safety issue. Even if you are not the physician most responsible, you should respond within your knowledge, clarify uncertainties, and coordinate with the most responsible physician as needed, ensuring timely, patient-centered care.

This 6-month-old presents with signs of systemic illness, tachypnea, hypoxia, and focal lung findings. In this age group, pneumonia can rapidly progress, and given the severity of symptoms, oral treatment is insufficient. Intravenous antibiotics are urgently indicated.

Toronto Notes 2023 – Pediatrics, Respiratory Infections in Infants:

“Infants under 6 months with signs of systemic illness, hypoxia (SpO2 < 94%), and respiratory distress should receive IV antibiotics. Delayed treatment may result in rapid clinical deterioration.”

MCCQE1 Objectives – Pediatrics > Respiratory Conditions:

“Candidates must recognize signs of serious lower respiratory tract infection in infants and initiate prompt IV antibiotic therapy when criteria for hospitalization are met.”

Oral antibiotics (C) are appropriate for mild outpatient pneumonia. Reassurance (B) and oral steroids (A) are inappropriate. IV fluids (D) may be supportive but do not address the infectious cause.

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This patient is competent and capable of making his own health decisions. A DNR order and naming a substitute decision-maker apply only when a patient lacks capacity. The next step is to discuss the suspected diagnosis with the patient and explore his preferences.

Toronto Notes 2023 – ELOM, Consent and Capacity:

“Competent patients retain full decision-making authority. Substitute decision-makers are only engaged when the patient lacks capacity. DNR applies to resuscitation, not other medical decisions.”

MCCQE1 Objectives – ELOM > Capacity, Consent, Advance Directives:

“Candidates must recognize that capable patients should be directly involved in decisions. Substitute decision-makers are not invoked unless the patient is incapable.”

Option A implies a breach of confidentiality without permission. Option C is premature. Option D bypasses informed consent. Option E misinterprets the DNR’s scope.

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This infant has persistent vomiting with feeding-associated distress and poor weight gain, despite appropriate initial nonpharmacologic measures (thickened feeds and hypoallergenic formula). MCCQE pediatrics objectives emphasize distinguishing physiologic reflux (“happy spitter”) from gastroesophageal reflux disease (GERD), which is suggested by feeding aversion/crying and failure to thrive. When conservative strategies fail and GERD is causing significant symptoms or complications (e.g., poor growth, suspected esophagitis contributing to irritability and possibly anemia), escalation to acid suppression is appropriate; a proton pump inhibitor such as omeprazole is used to treat acid-related esophageal injury and improve symptoms in selected infants with suspected erosive disease.

Metoclopramide is not preferred due to limited benefit and risk of extrapyramidal adverse effects. Calcium carbonate antacids are not recommended as ongoing therapy in infants due to safety concerns and inferior efficacy for esophagitis. Bismuth sulfate is not indicated. Loperamide is inappropriate and potentially harmful in infants. Continued monitoring of growth and reassessment for alternative diagnoses or alarm features is essential.