What can cause “pseudohyperkalemia” and when should we suspect its presence?

This article was first published on September 11, 2022. It was last edited or updated on September 13, 2022. One of our Members had a female patient in her 40s who had obesity and was being verbally abusive, loud, and disruptive. She had an elevated serum potassium level—around 5.5 [mmol/ L]. This is not rare,…