Tall U waves

Tall U waves (also known as prominent U waves) may be caused by bradycardia or hypokalemia.

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ECG Library (25)

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In the ECGquest archives, this ECG has been tagged with: - 12-Lead Long QT Tall U waves Hypokalemia Dr Smith's ECG Blog CC BY-NC
“Long QT” after droperidol 31289

This ECG is from a patient who presented wuth altered mental status and falls soon after treatment for intractable hiccups.

This ECG shows large U waves and long QU interval due to hypokalemia (1.7).

In the ECGquest archives, this ECG has been tagged with: - 12-Lead Long QT ST elevation in aVR Tall U waves Widespread ST depression Hypokalemia Dr Smith's ECG Blog CC BY-NC
Diffuse ST depression, and ST elevation in aVR. Left main, right? 29702

This ECG is from a middle aged male who presented with diffuse pain on a background of sickle cell disease.

This ECG shows LVH, diffuse ST depression with ST elevation in aVR and apparrent prolonged QTc due to U waves. The cause was hypokalemia (2.6).

In the ECGquest archives, this ECG has been tagged with: - 12-Lead Irregular Normal rate Tall U waves Wide QRS Atrial fibrillation Hypokalemia Dr Smith's ECG Blog CC BY-NC
Pre-existing Left Bundle Branch Block and Atrial Fib: what is alarming on this routine pre-procedure ECG? 29359

This ECG is from an elderly patient who had a routine pre-procedure ECG.

This ECG shows atrial fibrillation with LBBB (old) and large U waves. The cause was hypokalemia.

In the ECGquest archives, this ECG has been tagged with: - Weakness 12-Lead Long QT T-U waves Tall U waves Hypokalemia Dr Smith's ECG Blog CC BY-NC
A young man with back spasms 27727

This ECG is from a young man who presented with weakness and back pain on a background of an eating disorder and chronic kidney disease.

In the ECGquest archives, this ECG has been tagged with: - Weakness 12-Lead Long QT Tall U waves Hypokalemia Dr Smith's ECG Blog CC BY-NC
A pathognomonic ECG you should recognize instantly 25985

This ECG is from a patient of unknown age who presented with generalised weakness and malaise.

In the ECGquest archives, this ECG has been tagged with: - 12-Lead Anterior ST elevation Long QT R in aVR T-U waves Tall U waves Toxicology / Overdose Dr Smith's ECG Blog CC BY-NC
Bupropion Overdose Followed by Cardiac Arrest and, Later, ST Elevation. Is it STEMI? Repeat ECG on day 3 26632

This ECG is from a young woman who presented with status epilepticus seizures and an apparent overdose of bupropion, with possible cocaine ingestion. She was intubated and given propofol and benzodiazepines, which terminated the seizures, and then a PEA arrest was terminated with epinephrine and bicarbonate. This was the repeat ECG on day 3.

In the ECGquest archives, this ECG has been tagged with: - Diarrhoea Vomiting 12-Lead Nonspecific baseline artefact Long QT Tall U waves Hypokalemia ECG of the Week CC-BY-NC-SA
ECG of the Week – 16th July 2018 – Interpretation 25957

This ECG is from a woman in her 50s who presented with diarrhoea and vomiting on a background of paroxysmal AF and anxiety.

In the ECGquest archives, this ECG has been tagged with: - 12-Lead Tall U waves Hypokalemia Toxicology / Overdose Dr Smith's ECG Blog CC BY-NC
Insulin Overdose: Does this ECG help to Guide your Management? 25479

This ECG is from a patient of unknown age who presented after an insulin overdose.

In the ECGquest archives, this ECG has been tagged with: - 12-Lead Normal Axis Normal rate Regular Tall U waves Hypokalemia Dr Smith's ECG Blog CC BY-NC
Look at these “T”-waves 19577

This ECG is from an alcoholic who presented with confusion.

In the ECGquest archives, this ECG has been tagged with: - Diarrhoea Seizure 12-Lead Incorrect Machine Interpretation Long QT Tall U waves Hypokalemia Dr Smith's ECG Blog CC BY-NC
A patient with a “seizure” and a completely “normal” ECG 18357

This ECG is from a patient who presented with their first ever 'seizure' on a background of recent diarrhoea. QTc = 595 msec.