Tag hypokalemia


Hypokalaemia causes typical ECG changes of widespread ST depression, T wave inversion, and prominent U waves, predisposing to malignant ventricular arrhythmias

ECG Case 101

51 yr old female who presented with chronic vomiting. She has a history of rheumatoid arthritis and paroxysmal atrial fibrillation. Her medications include sotalol and rivaroxaban.
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Metabolic Mayhem

Two quick ECG problems for you this week. See if you can spot the common thread. This potassium with hyperkalemia, hypokalaemia
CCC Critical Care compendium 340

Hypokalaemic Periodic Paralysis

Hypokalaemic Periodic Paralysis; rare channelopathy; muscle weakness/paralysis with a matching fall in K+ levels; starts in adolescence; weakness may be mild -> full body paralysis
CCC Critical Care compendium 340


Hypokalaemia: the most common electrolyte abnormality in hospitalised patients; mostly caused by drugs and GI disease
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You can beat the feeling

It’s a busy night shift in the ED (as always) and one of the Interns comes to present a case to you. He’s seen a 23 yr old female who has presented with lethargy and weakness. While you're listening to the Intern your phone rings — it's the lab calling to tell you the patient’s potassium is 1.9 mmol/L.
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Waxing and Waning Weakness

A 50 year old Chinese female presents with severe weakness. She has a history of previous similar episodes that self-resolved. What's going on?