The ECG shows ______ complexes in leads V1-V2, suggesting right ventricular hypertrophy.

1 dominant-R ✓ 정답
2 rSR
3 QRS
4 wide
5 tall

해설

Dominant-R wave complexes in right precordial leads (V1-V2) are a key ECG finding in right ventricular hypertrophy. This pattern occurs due to increased right ventricular muscle mass, altering the normal electrical forces in these leads.

같은 주제 다음 문제The patient's EKG shows significant ST ______ in leads V2 through V4, suggesting acute ant…

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ECG Findings in Right Ventricular Hypertrophy (RVH):

1. R wave amplitude in V1 > 6mm
2. R/S ratio in V1 > 1.0
3. Right axis deviation > 110 degrees
4. Deep S waves in leads I and V6
5. ST depression and T wave inversion in right precordial leads
6. QR pattern in V1
7. Increased R wave amplitude in aVR
8. P pulmonale (tall, peaked P waves in II, III, aVF)
9. Incomplete or complete right bundle branch block pattern
10. Transition zone shift to the left
11. Secondary repolarization changes
12. R wave peak time in V1 > 0.035 seconds

Common Causes of RVH:
1. Pulmonary hypertension
2. Congenital heart disease
3. Chronic lung disease
4. Pulmonary embolism
5. Mitral stenosis
6. Cor pulmonale

핵심 개념

dominant-R — A prominent R wave that is larger than other waves in the QRS complex, typically seen in ECG leads
rSR — A pattern in ECG showing a small r wave, followed by an S wave, and then a larger R wave, forming an M-shaped complex
QRS — The combination of three graphical deflections on an ECG representing ventricular depolarization
wide — Having a greater than normal duration or breadth when referring to ECG wave complexes
tall — Having greater than normal amplitude or height when referring to ECG wave complexes

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The ECG shows ______ complexes in leads V1-V2, suggesting right ventricular hypertrophy.

임상 시나리오

핵심 개념

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