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Interpret this ecg

Reading File
analyse_media
Finding Sources
Searching PubMed

electrocardiography interpretation AND systematic review

Searching the Web

American Heart Association ECG interpretation standard 12 lead bundle branch block criteria

Browsing Directory

~/

Running Command

mkdir -p "/tmp/workspace/ecg-review/output" && python -c "from PIL import Image, ImageEnhance, ImageFilter; im=Image.open('/tmp/workspace/attachments/a11c16f5-4c41-49ed-bf81-ff97aada7132/image.jpg'); im=im.rotate(90, expand=True); im=ImageEnhance.Contrast(im).enhance(1.8); im=ImageEnhance.Sharpness(im).enhance(1.4); im.save('/tmp/workspace/ecg-review/output/ecg_rotated_enhanced.jpg', quality=95)" && ls -lh "/tmp/workspace/ecg-review/output/ecg_rotated_enhanced.jpg"

Reading File
Running Command

python -c "from PIL import Image; im=Image.open('/tmp/workspace/ecg-review/output/ecg_rotated_enhanced.jpg'); im.thumbnail((1600,1600)); im.save('/tmp/workspace/ecg-review/output/ecg_preview.jpg', quality=78, optimize=True)" && ls -lh "/tmp/workspace/ecg-review/output/ecg_preview.jpg"

Reading File
Most consistent with atrial flutter with fixed approximately 4:1 AV conduction.
  • Regular narrow-QRS ventricular rhythm, roughly 70-80 bpm
  • Repetitive atrial flutter ("saw-tooth") activity is visible between QRS complexes, most evident in the inferior leads/precordial leads
  • Atrial rate is likely near 300 bpm, with about 4 flutter waves per QRS
  • No definite acute ST-elevation pattern can be confirmed from this low-resolution, angled photograph
This needs confirmation on a clear, correctly oriented 12-lead ECG and clinical correlation. If this ECG is associated with chest pain, dyspnea, syncope, hypotension, or ongoing palpitations, seek urgent medical assessment.

Is it st elevation

Reading File
Finding Sources
Searching PubMed

ST segment elevation electrocardiography

Searching the Web

ACC AHA acute coronary syndrome guideline ST elevation ECG criteria 2025

I cannot confirm diagnostic ST elevation from this photograph. The tracing is too faint, angled, and affected by artifact to reliably identify the J-point or measure ST deviation.
I do not see a clear, convincing pattern of ST elevation in contiguous leads from this image alone. A repeat, properly recorded 12-lead ECG is needed, ideally with comparison to prior ECGs and clinical assessment. STEMI is diagnosed from ECG findings in the setting of compatible symptoms, not from a photo alone, as described in emergency medicine guidance.
If this person has ongoing chest pressure/pain, breathlessness, sweating, nausea, syncope, or is unwell, treat it as an emergency and seek immediate ED/EMS assessment, including repeat ECGs and troponin testing.

How you calculate heart rate in this

Reading File
Finding Sources
Searching PubMed

electrocardiography heart rate measurement

Searching the Web

ECG paper 25 mm per second 300 divided large squares heart rate calculation

Assuming the ECG was recorded at the usual 25 mm/second speed:

Ventricular heart rate

Measure the distance between two consecutive R waves:
[ \text{Heart rate} = \frac{300}{\text{number of large squares between R waves}} ]
In this tracing, the R-R interval appears to be about 4 large squares:
[ 300 \div 4 \approx 75\ \text{beats/min} ]
So the ventricular rate is approximately 75 bpm.

If this is atrial flutter

The small repetitive flutter waves occur much faster, approximately 300/min. With about 4 flutter waves for each QRS, there is 4:1 AV conduction:
[ 300 \div 4 = 75\ \text{bpm} ]
That gives the same ventricular rate, about 75 bpm.
Because the photograph is skewed and the grid is faint, consider this an estimate. On an irregular rhythm, use the 10-second method: count all QRS complexes in 10 seconds and multiply by 6.
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