Interpret this ecg
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normal 12-lead ECG interpretation sinus rhythm
Here is a systematic interpretation of this ECG:
ECG Interpretation
Machine-Recorded Parameters
| Parameter | Value | Normal |
|---|---|---|
| Heart Rate | 80 bpm | 60–100 bpm ✅ |
| PR interval | 165 ms | 120–200 ms ✅ |
| QRS duration | 92 ms | < 120 ms ✅ |
| QT/QTc | 360/416 ms | QTc < 440 ms ✅ |
| P/QRS/T axis | 55/26/74° | Normal ✅ |
| RV5/SV1 | 0.360/1.067 mV | — |
Systematic Analysis
Rate & Rhythm
- Heart rate: 80 bpm — normal
- Sinus rhythm — regular P waves preceding each QRS; confirmed by the machine as "Sinus Rhythm"
P Waves
- Present and upright in leads I, II, aVF — consistent with sinus origin
- Normal morphology, normal PR interval (165 ms)
QRS Complex
- Duration 92 ms — narrow (no bundle branch block)
- Normal axis at 26° (no left or right axis deviation)
- R-wave progression in the precordial leads (V1–V6) appears normal — transition occurs as expected around V3–V4
ST Segments & T Waves
- No ST elevation or ST depression visible in the limb or precordial leads
- T waves appear upright and of normal morphology in the visible leads
QTc
- 416 ms — within normal limits for males (< 440 ms); borderline if female (< 460 ms)
RV5/SV1 Voltage
- RV5 (0.36 mV) + SV1 (1.067 mV) = ~1.43 mV — below the Sokolow-Lyon threshold of 3.5 mV, so no LVH by voltage criteria
Conclusion
Normal ECG — sinus rhythm, normal rate, normal axis, no ischemic changes, no conduction abnormalities, no hypertrophy criteria met.
The machine interpretation of "Normal BCG" (Normal ECG) is concordant with the above findings.
Clinical Note: ECG interpretation should always be correlated with the patient's clinical presentation, symptoms, and history. This patient is from the Department of Pulmonology — if there is concern for pulmonary embolism, look specifically for S1Q3T3 pattern, right heart strain, or sinus tachycardia, none of which are present here. The ECG appears reassuringly normal.
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