IMG-20260710-WA0009.jpg
Interpret this ECG
Reading File
analyse_media
Finding Sources
Here is the full ECG interpretation:
ECG Interpretation
Technical Details
- Paper speed: 25 mm/s | Gain: 10 mm/mV | Filter: 0.67-100 Hz, AC50
- Machine: CARDIART 9108-D | Glasgow algorithm V28.6.7
- Automated measurements: PQRST 41/48/18 | RV5/SV1: 1.178/0.661 mV
Systematic Analysis
| Parameter | Finding |
|---|---|
| Rate | ~75 bpm (R-R ~4 large squares) |
| Rhythm | Regular |
| P waves | Upright in I, II, aVF; inverted in aVR - consistent with sinus origin |
| PR interval | ~160 ms (normal: 120-200 ms) |
| QRS duration | ~80 ms (normal: <120 ms) - narrow |
| QT/QTc | Visually normal (<1/2 R-R interval) |
| Axis | Normal (Lead I positive, aVF positive → 0° to +90°) |
Lead-by-Lead Highlights
Limb leads:
- I, II: Upright P, QRS, T waves - normal
- III: Small complexes, normal
- aVR: Inverted P and T (expected), negative QRS
- aVL: Normal
- aVF: Upright - confirms normal inferior axis
Precordial leads (V1-V6):
- Normal R-wave progression - transition zone around V3/V4
- No Q waves pathological in nature
- ST segments isoelectric throughout
- T waves upright V3-V6, normally inverted in V1
Findings
- No ST elevation or depression - no acute ischemic pattern
- No pathological Q waves - no evidence of prior infarction
- No left ventricular hypertrophy (RV5 1.178 mV + SV1 0.661 mV = 1.839 mV - below the Sokolow-Lyon threshold of 3.5 mV)
- No bundle branch block (QRS narrow)
- No axis deviation
Conclusion
Normal sinus rhythm at ~75 bpm with no acute or chronic pathological changes.
This ECG is within normal limits. The machine's automated Glasgow algorithm interpretation is consistent with a normal tracing.
Clinical reminder: ECG findings must always be correlated with the patient's symptoms, clinical history, vitals, and prior tracings. A normal ECG does not exclude all cardiac pathology (e.g., early ACS, vasospasm, intermittent arrhythmias).
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