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| Section | Objectives |
|---|---|
| Topic 1: Physician Activities | - Communication
|
| Topic 2: Dimensions of Care | - Health Promotion and Illness Prevention
|
知識は、将来価値のある報酬を提供できる無形資産と定義されているため、neverめないでください。また、MCCQE試験の準備は、試験に効果的に対処するのに十分な知識を提供できます。試験の受験者のニーズを満たすために、当社の専門家は完璧な配置とメッセージの科学的編集で当社のMCCQE練習資料を作成したため、完璧な資料を見つけるために他の多数の資料を勉強する必要はありません。 MCCQE試験クイズは、最高のヘルプを提供します。そして、MCCQEトレーニング資料は決してあなたを失望させません。
質問 # 226
A system administrator needs to install a GPU/DPU in a server. The server has a free PCI-e slot, there are enough free PCI-e lanes, and there is enough room for the card. Which procedure should be followed?
正解：C
解説：
Comprehensive and Detailed Explanation:
The physical installation of high-performance NVIDIA components, such as H100 PCIe GPUs or BlueField DPUs, requires strict adherence to data center safety and hardware preservation standards. Option D is the only " 100% verified " procedure because it covers three critical pillars: Power, Compatibility, and Safety.
First, high-end GPUs can draw up to 300W-450W individually; verifying the server ' s PDU and internal PSU capacity is essential to prevent over-current shutdowns. Second, verifying cable compatibility (such as
12VHPWR or specific PCIe power 8-pin layouts) is vital to avoid electrical damage. Third, " Cold Service " (ensuring the server is powered down and cables are removed) is the standard for non-hot-plug PCIe components to prevent short circuits. Finally, wearing an ESD (Electrostatic Discharge) bracelet is non- negotiable when handling NVIDIA hardware, as static charges can destroy the sensitive HBM (High Bandwidth Memory) or the GPU die itself. Skipping ESD protection (as suggested in Option A) or performing the install while the system is " up and running " (as suggested in Option C) are leading causes of hardware infant mortality in AI infrastructure.
質問 # 227
A 43-year-old car mechanic, with no prior history, comes to the Emergency Department because of a sudden loss of balance at work. He also feels lightheaded, slightly disoriented and nauseous. Physical examination and basic blood work-up are normal. He tells you this is the 3rd time this has happened at work. Which one of the following is the most likely diagnosis?
正解：D
解説：
The most likely diagnosis is organic solvent intoxication because the episodes are recurrent, acute, and specifically occur at work in a car mechanic. MCCQE objectives in occupational and environmental medicine emphasize recognizing workplace exposures that cause transient neurologic symptoms. Organic solvents (e.g., toluene, xylene, gasoline vapors, degreasers) can produce acute CNS effects such as dizziness, imbalance
/ataxia, nausea, lightheadedness, and mild confusion or disorientation, often with a normal routine exam and basic labs once exposure ceases. The clear temporal relationship to the workplace and repeated similar episodes strongly supports an exposure-related cause. Lead toxicity is typically subacute/chronic, presenting with abdominal pain, constipation, neuropathy (wrist/foot drop), cognitive changes, anemia, and basophilic stippling-rather than brief episodic disequilibrium. A cerebellar tumor would cause progressive, persistent symptoms and focal neurologic findings. Ear infection-related vertigo would not reliably recur only at work and usually has ear symptoms or exam findings. Alcohol intoxication is less consistent with a repeated workplace-only pattern without corroborating signs.
質問 # 228
A 70-year-old woman presents to the Emergency Department with a 2-day history of dysuria and right flank pain. Upon arrival, she is quite unwell. Her vital signs are as follows: blood pressure 70/38 mm Hg, heart rate
130/min, respiratory rate 24/min, temperature 39.4 °C.
Due to difficulty obtaining peripheral access, a central line is inserted. There is a lot of ongoing bleeding around the line insertion site. Her blood work shows:
White blood cell count: 19.8 × 10#/L (4-10)
Hemoglobin: 101 g/L (123-157)
Platelets: 85 × 10#/L (130-400)
Blood film: schistocytes
INR: 1.9 (0.9-1.2)
Fibrinogen: < 1 g/L (2-4)
Which one of the following is the most likely cause of her ongoing bleeding?
正解：B
解説：
This patient is in septic shock, likely from pyelonephritis, with hypotension, tachycardia, and fever. Her laboratory findings demonstrate thrombocytopenia (platelets 85 × 10#/L), elevated INR, very low fibrinogen (
< 1 g/L), and schistocytes on blood film, along with active bleeding from the central line site. These findings are classic for disseminated intravascular coagulation (DIC).
MCCQE objectives emphasize recognizing DIC as a complication of severe sepsis. In DIC, systemic activation of coagulation leads to widespread microthrombi formation and consumption of platelets and clotting factors (consumptive coagulopathy), resulting in both thrombosis and bleeding. Low fibrinogen and prolonged INR are key distinguishing features.
ITP causes isolated thrombocytopenia without coagulation abnormalities. TTP presents with thrombocytopenia and schistocytes but typically has normal coagulation studies. Heparin-induced thrombocytopenia requires prior heparin exposure and does not cause elevated INR or low fibrinogen.
Vitamin K deficiency causes prolonged INR but does not produce thrombocytopenia or schistocytes.
Thus, DIC secondary to sepsis is the most likely cause of her bleeding.
質問 # 229
A 79-year-old woman presents to the Emergency Department with sudden-onset severe chest and back pain that started 1 hour ago. She has a history of hypertension and looks unwell. Her vital signs are as follows:
blood pressure 168/108 mm Hg, heart rate 110/min, respiratory rate 22/min, temperature 36.7°C. Findings of a physical examination of the chest and abdomen are normal. An urgent computed tomography (CT) scan of the chest and abdomen shows an aortic dissection extending from the descending thoracic aorta to the upper abdominal aorta. The branches of the abdominal aorta are patent. Following initial resuscitation, which one of the following is the best next step?
正解：A
解説：
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.
質問 # 230
A 34-year-old woman, gravida 3, para 2, aborta 0, presents at 38 weeks' gestation. She is in early labor with ruptured membranes. Her previous pregnancy was complicated by fever during labor. Which one of the following would increase the risk of fever recurrence?
正解：D
解説：
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.
質問 # 231
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MCCQEガイドトレントの3つの異なるバージョンの中で最も普及しているのはPDFバージョンであり、Medical Council of Canadaは特に適切であり、若者に歓迎されていることは間違いありません。このバージョンにはいくつかの機能があります。まず、MCCQE準備ガイドのPDFバージョンを紙に印刷できます。ただし、メモを作成して重要な試験ポイントを強調することができます。前述のように、MCCQE試験トレントサポート無料のデモダウンロードに加えて、MCCQE準備ガイドを十分に理解し、適切で満足できる場合は購入することが理想的です。
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