ECG Report - July 21, 2026 at 08:42:54

Machine-Reported Parameters

Machine Interpretation (printed on strip)

Sinus arrhythmia Lead(s) unusable for analysis: V5 Interpretation made without knowing patient's gender/age Normal ECG based on available leads Unconfirmed Diagnosis

Manual Waveform Assessment

• Sinus rhythm with mild irregularity (sinus arrhythmia - normal variant, especially in younger/athletic individuals)
• P waves are present before each QRS, indicating normal sinus node activity

• Approximately 65 bpm - normal (60-100 bpm range)

• Normal (normal range: 120-200 ms)
• No evidence of heart block or pre-excitation (WPW)

• The machine-reported QRS duration of 260/401 ms is abnormally long and likely reflects a measurement artifact or lead quality issue (V5 was noted as unusable)
• Visually, the QRS complexes appear narrow in most leads, which would be consistent with a normal conduction pattern

• P axis ~60 deg: Normal
• QRS axis ~45 deg: Normal (normal range: -30 to +90 deg)
• T axis ~45 deg: Normal, concordant with QRS

• No obvious ST elevation or depression visible in the available leads
• No acute ischemic changes apparent

• Appear upright and of normal morphology in lateral leads
• No T wave inversions to suggest ischemia or strain

Key Points

1. Overall: Essentially normal ECG - the machine's "Normal ECG" conclusion is supported by the waveform appearance.
2. Sinus arrhythmia is a benign, normal finding - the R-R intervals vary slightly with breathing.
3. The QRS duration figure (260/401 ms) printed by the machine appears anomalous and is likely a measurement error due to the poor V5 lead quality, not a true wide-QRS condition. Visually, the complexes look narrow.
4. Lead V5 was flagged as unusable - this may be due to poor electrode contact or movement artifact.

Clinical Disclaimer

This reading is for informational purposes only and does not substitute for a formal interpretation by a licensed physician or cardiologist. If you have symptoms such as chest pain, palpitations, shortness of breath, or syncope, please consult a healthcare provider promptly.