8.3 🩺 內科專科考前版

對象:R2-R3 / Fellow,準備台灣內科專科考。本章 specialist 重點:EBM PE deep dive、POCUS、HCMS、AI 整合。


8.3.0.1 📌 一頁重點整理

  • 22E 強調 EBM PE 仍是 internist 核心技能:McGee + Simel JAMA Rational Clinical Exam series 是 reference
  • POCUS(Point-of-Care Ultrasound) 是 PE 的延伸 tool
  • AI alpha-validation for PE 仍 emerging(imaging 領先 PE)
  • 📍 台灣:JCT (台灣專科醫師考) PE OSCE 站每年改進
  • Verghese 派強調 ritual + humanism;對 EHR 過度依賴持續 critique

8.3.0.2 📜 22E vs 21E 主要差異

項目 21E 22E
POCUS integration 強化(Verghese 持續推)
AI in PE 提及(auscultation AI、retinal scan)
EHR copy-paste 警告 強化
HINTS battery 詳細
EBM PE evidence McGee 5e 22E 引述 5e 與後續 update

8.3.0.3 🧠 深度概念

8.3.0.3.1 Evidence-Based Physical Examination(EBPE)

核心 principles: 1. PE finding 都該有 sensitivity / specificity / LR 數據 2. 多數傳統 finding LR 介於 0.5-2(useless),少數 highly informative 3. McGee 的 Evidence-Based Physical Diagnosis 是 gold-standard reference 4. JAMA Rational Clinical Exam series(1998-)是 evidence base

8.3.0.3.2 Reliability vs Accuracy

Reliability (κ):兩個 observer 是否一致 - 不同 finding 差異大(abdominojugular 0.92 vs neck vein 0.08-0.71)

Accuracy (LR):finding 是否真反映疾病 - 反映 disease prevalence + signal strength

→ 高 reliability + 高 accuracy = 「useful in clinic

8.3.0.3.3 POCUS(Point-of-Care Ultrasound)

22E 提到 POCUS 整合: - 已是 ICU、ED、internal medicine 常規 - 例:FAST exam、cardiac PoCUS、IVC、lung ultrasound、DVT bedside US - 限制:operator-dependent、limited training in many programs - 內科 fellow 越來越要求 POCUS competency

8.3.0.3.4 AI in PE Augmentation

22E 略提: - Auscultation AI(電子聽診器):增強 murmur、wheeze 識別 - Retinal AI(fundus photo):DR、glaucoma、CV risk - Voice analysis:detect Parkinson、dementia - Wearable:HR variability、AF - 限制:bias、generalizability

8.3.0.3.5 Diagnostic Imperatives 對應 PE

某些「不能漏」的 dx 對應 PE finding: - Aortic dissection:BP differential 雙手、pulse deficit - SAH:meningismus、neuro deficit - Meningitis:Kernig、Brudzinski(雖 sensitivity 低) - Stroke:HINTS for posterior、NIHSS for cortical - Cardiac tamponade:pulsus paradoxus、Beck’s triad - PE:Wells score with PE-specific findings


8.3.0.4 🩺 高 yield PE Manoeuvres(22E 列出 + LR)

8.3.0.4.1 Heart Failure (Elevated Left Heart Filling Pressure)
  • Positive abdominojugular reflux: LR 8.0(最強)
  • Displaced apical impulse: LR 5.8
  • HR > 100: LR 5.5
  • S3 gallop: LR 3.9
  • → 多 finding 組合提升 yield
8.3.0.4.2 Pneumonia
  • Egophony: LR 4.1
  • Percussion dullness: LR 3.6
  • Bronchial breath sounds: LR 3.3
  • Crackles: LR 2.8
8.3.0.4.3 Ascites(abdominal distension)
  • Fluid wave: LR 5.0
  • Edema present: LR 3.8
  • Shifting dullness: LR 2.3
  • Edema absent: LR 0.2(rule out)
8.3.0.4.4 Hepatopulmonary Syndrome
  • Clubbing: LR 4.3
  • Cyanosis: LR 4.4
  • → Combined → high probability in cirrhotic
8.3.0.4.5 Bedside Stop Rules
Rule 用途 Negative LR
Ottawa Ankle 排 ankle/foot fracture 0.1
Wells DVT + neg D-dimer 排 DVT 0.2
HINTS peripheral 排 posterior stroke 0.02
Alvarado ≤ 4 排 appendicitis 0.1
Heckerling 0-1 排 pneumonia 0.3
Probe-to-bone neg 排 osteomyelitis (DM foot) 0.2
8.3.0.4.6 HINTS Battery 詳解

Step 1 - Head Impulse Test: - Examiner rotates head while patient fixates - Peripheral:corrective saccade(眼跟不上 → 瞄向回來) - Central:no saccade - → Peripheral pattern in head impulse 是 reassuring(與其他 vertigo 直覺反過來!)

Step 2 - Nystagmus pattern: - Peripheral:unidirectional - Central:direction-changing in different gaze positions

Step 3 - Test of Skew (Cover-uncover): - Negative:no vertical realignment - Positive:vertical correction → central

→ 三項全「peripheral」(head impulse + unidirectional nystagmus + no skew)→ posterior stroke LR 0.02

→ 三項任一「central」→ MRI 必做


8.3.0.5 🌟 Clinical Pearls (8 條)

  1. Combine multiple PE findings:single LR 有限;combined LR can rule in/out 強烈
  2. 「Negative finding」也是訊息:edema 不存在 LR 0.2 for ascites
  3. HINTS 比 NIHSS 對 acute vertigo 更敏感於 stroke:但需 ENT-trained 操作
  4. Abdominojugular reflux 是 underused gem:bedside 1 分鐘 LR 8.0 for HF
  5. 「Auscultatory percussion」應淘汰:低 reliability
  6. POCUS 是 PE 的 21 世紀延伸:不是替代,是 augmentation
  7. EHR copy-paste 是 PE 偷懶共犯:cut-and-paste 假成 thorough exam
  8. Verghese 學派 + Feinstein 學派 = EBPE 雙基:humanism + evidence

8.3.0.6 🔍 特殊情境

8.3.0.6.1 1. Verghese vs Technologist 二派
  • Verghese: ritual、humanism、bedside teaching
  • Tech-heavy: imaging-first、AI-augmented
  • 22E 立場:兩者結合(不是對立)
8.3.0.6.2 2. POCUS 在 internal medicine
  • Cardiac POCUS:LV function、effusion、IVC
  • Pulmonary POCUS:B-lines、pneumothorax、pleural effusion
  • DVT bedside US:2-point compression
  • AAA screening
  • 限制:training、credentialing、liability
8.3.0.6.3 3. 教育議題:bedside teaching erosion
  • Trainees 多在 conference room round
  • 病人 bedside 互動減少
  • 22E 強調必須 reverse this trend
  • 解法:dedicated bedside teaching、structured PE curricula
8.3.0.6.4 4. PE 在 telehealth 時代
  • Limitations:not hands-on、limited inspection
  • Adaptations:patient self-PE guidance、family member assist、video assessment
  • 仍需 in-person follow-up for 重要 PE
8.3.0.6.5 5. AI-augmented PE
  • 數字化 stethoscope(如 Eko)+ AI murmur classification
  • Retinal AI for DR
  • ECG AI for AF detection
  • 限制:bias、validation in diverse populations
8.3.0.6.6 6. 老年病 PE 特殊性
  • Frailty assessment(gait、grip)
  • Cognitive screening(Mini-Cog)
  • Polypharmacy review
  • Functional capacity(IADL)
  • 22E 強調 multifaceted assessment

8.3.0.7 🔬 22E 提到的新進展

8.3.0.7.1 Digital PE Tools
  • Smart stethoscopes(Eko, Thinklabs)
  • AI-based murmur identification
  • Continuous monitoring devices
8.3.0.7.2 Telemedicine PE
  • COVID-19 期間擴張
  • “Tele-PE” 限制大
  • 整合 home devices(BP, pulse ox, glucose)
8.3.0.7.3 POCUS 教育
  • ACGME competency by IM 2017
  • Internal medicine residency 訓練擴大
  • Echo cards、IVC、lung、DVT 為核心

8.3.0.8 📍 台灣 Context 專區

8.3.0.8.1 台灣 PE 訓練
  • 醫學系課程:preclinical 含 physical diagnosis
  • PGY OSCE 站:基本 PE
  • 內科專科考:含 PE site
  • 但 bedside teaching 持續弱化(與美國類似)
8.3.0.8.2 POCUS 在台灣
  • 各醫學中心擴展中
  • 健保給付 ICU/ED 為主
  • 內科 ward POCUS 認證 emerging
8.3.0.8.3 台灣 EBPE 教材
  • McGee 中文版
  • JAMA RCE 系列翻譯
  • TJCHA continuing education
8.3.0.8.4 台灣資源 + 限制
  • ✅ 病房病人多、PE 機會充足
  • ✅ Bedside teaching 文化仍存(年長 attending)
  • ⚠️ EHR copy-paste 也普遍
  • ⚠️ Trainee 工時壓力 + 文書工作擠壓 PE 時間
8.3.0.8.5 內科專科考 PE OSCE 重點
  • HINTS battery(vertigo 站)
  • Acute abdomen
  • Cardiac auscultation
  • Pulmonary exam
  • Neurological exam(含 cranial nerves、motor、sensory、coordination、gait)
  • Joint exam

8.3.0.9 ⚠️ 老闆地雷區

  1. EHR copy-paste 假裝 complete PE
  2. 不做 bedside US 即使 indicated
  3. HINTS 不會用 → over-MRI
  4. OG vs PE conflict 時:不檢視自己 PE 而盲信 imaging
  5. Bedside teaching 跳過:trainee skill 退化
  6. Bedside US 沒 credentialing 自做
  7. 病人 disrobed 不充分:missed dermatologic finding
  8. Telehealth 過度信任:missed hands-on signs

8.3.0.10 🎓 內科專科考重點預測

8.3.0.10.1 高機率題型
  1. HINTS battery 內涵與 LR
  2. HF / pneumonia / ascites LR table 解讀
  3. Bedside rules(Ottawa、Wells、Alvarado)
  4. κ scale 解讀
  5. Pretest probability 應用
8.3.0.10.2 OSCE 站
  • Vertigo 病人 HINTS demo
  • Heart failure PE
  • Acute abdominal exam
  • Joint exam(OA、RA)
8.3.0.10.3 跨章節整合
  • Ch 4 Decision-Making:Bayesian
  • 配各疾病章 PE finding(HF、pneumonia、ascites)
  • Ch 24 Dizziness:HINTS
8.3.0.10.4 易答錯
  • 所有 PE finding 都有 LR > 2(錯)
  • HINTS positive findings = 表示 stroke(錯,要看哪個 component)
  • POCUS 取代 PE(錯,是 augmentation)

8.3.0.11 📖 延伸閱讀

  • McGee S. Evidence-Based Physical Diagnosis, 5th ed. Elsevier, 2022.
  • Simel D, Rennie D, eds. The Rational Clinical Examination: Evidence-Based Clinical Diagnosis. JAMA Press.
  • Kattah JC et al. HINTS to diagnose stroke. Stroke 40:3504, 2009.
  • Verghese A, Charlton B et al. Bedside in the modern era. Lancet 391:e23, 2018.
  • 中文:McGee 中文版

8.3.0.12 📚 三階段教材索引


⚠️ 本 md 為 claude-opus-4-7 撰寫(2026-05-07),未經盧醫師驗證。