ECG Quest > Shapes > T and U waves > Tall U waves

Tall U waves

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

See also: T and U waves

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

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: - Irregular Normal rate Tall U waves Wide QRS Atrial fibrillation Hypokalemia 12-Lead 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?

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 Long QT T-U waves Tall U waves Hypokalemia 12-Lead Dr Pendell Meyers Dr Smith's ECG Blog CC BY-NC
A young man with back spasms

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 Long QT Tall U waves Hypokalemia 12-Lead Dr Pendell Meyers Dr Smith's ECG Blog Dr Ken Grauer CC BY-NC
A pathognomonic ECG you should recognize instantly

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: - Anterior ST elevation Long QT R in aVR T-U waves Tall U waves Toxicology / Overdose 12-Lead Dr Smith's ECG Blog Dr Ken Grauer CC BY-NC
Bupropion Overdose Followed by Cardiac Arrest and, Later, ST Elevation. Is it STEMI? Repeat ECG on day 3

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 Nonspecific baseline artefact Long QT Tall U waves Hypokalemia 12-Lead ECG of the Week Dr John Larkin CC-BY-NC-SA
ECG of the Week – 16th July 2018 – Interpretation

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: - Tall U waves Hypokalemia Toxicology / Overdose 12-Lead Dr Smith's ECG Blog Dr Ken Grauer CC BY-NC
Insulin Overdose: Does this ECG help to Guide your Management?

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: - Normal Axis Normal rate Regular Tall U waves Hypokalemia 12-Lead Dr Smith's ECG Blog CC BY-NC
Look at these “T”-waves

This ECG is from an alcoholic who presented with confusion.

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

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