Long PR

A long PR interval is more than 5 mm (200 ms) at standard settings. This is usually caused by a conduction block (or delay) at the AV node.

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ECG Library (29)

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In the ECGquest archives, this ECG has been tagged with: - 12-Lead Long PR Long QT Wide QRS Hyperkalemia Hypocalcaemia ECG of the Week CC-BY-NC-SA
ECG of the Week – 31st December 2018 – Interpretation

This ECG is from a woman in her 30s who presented with cramping following thyroid surgery.

This ECG shows prolonged QT due to long ST segment, no U waves, but also a prolonged QRS and PR. There was hypocalcemia, mild hyperkalemia and hypermagnesemia.

In the ECGquest archives, this ECG has been tagged with: - Syncope 12-Lead Left Axis Deviation Long PR Normal rate RSR' Wide QRS First degree AV block LAFB RBBB Trifascicular block ECG of the Week CC-BY-NC-SA
ECG of the Week – 26th November 2018 – Interpretation

This ECG is from a man in his 60s who presented after an episode of syncope.

This ECG shows bifascicular block (RBBB + LAFB) with a first degree AV block. He underwent pacemaker insertion.

In the ECGquest archives, this ECG has been tagged with: - Chest pain 12-Lead Anterior ST elevation Left Axis Deviation Long PR Normal rate Regular Acute Anterior MI ECG of the Week CC-BY-NC-SA
ECG of the Week – 22nd October 2018 – Interpretation
In the ECGquest archives, this ECG has been tagged with: - Chest pain 12-Lead Left Axis Deviation Long PR Pathological Q waves Regular Wide QRS First degree AV block RBBB ECG Guru CC-BY-NC-SA
Instructors’ Collection ECG: Right Bundle Branch Block With Probable Previous M.I.

This ECG is from an 87 year old man who presented with chest discomfort.

In the ECGquest archives, this ECG has been tagged with: - Chronic kidney disease 12-Lead Long PR Hyperkalemia Dr Smith's ECG Blog CC BY-NC
The blood sample is hemolyzed. Twice. Is there hyperkalemia on the ECG?

This ECG is from a patient on haemodialysis for renal failure.

In the ECGquest archives, this ECG has been tagged with: - Chest pain 12-Lead Long PR Wide QRS First degree AV block Intraventricular conduction delay Dr Smith's ECG Blog CC BY-NC
A 50-something with h/o coronary bypass has chest pain and a ventricular paced rhythm

This ECG is from a man in his 50s who presented with chest pain on a background of previous CABG and dual chamber pacemaker.

This ECG shows sinus rhythm with first degree AV block and IVCD.

In the ECGquest archives, this ECG has been tagged with: - Dyspnoea 12-Lead Long PR First degree AV block Dr Smith's ECG Blog CC BY-NC
A Healthy 50-something with new dyspnea on exertion and an interesting ECG