ECG made easy - Hypercalcemia & Hypocalcemia 

الله يعافيكي ^_^ كتير مبسوط أنه شغلي عم يفيد الناس.

@@PathophyswithMac جد شعور حلو تفيد الناس🌸 الله يجزيك الخير وبالتوفيق منه لاحسن يارب

Most welcome 😊

Hi, Yes both can actually lead to QT prolongation. Hypokalemia prolongs it by affecting phase 3, while hyperkalemia affects phases 0,1,2, 3 and 4.

but usually it’s mostly hypokalemia, hypocalcemia as well as hypomagnesemia that causes QT prolongation right sir?

@@karthigat7315 hypokalemia causes ST segment and T wave prolongation (and subsequently QT time) plus presence of a U-wave. Yes hypo-Ca and hypo-Mg also cause QT prolongation. Hyper-K causes prolongation of the QRS and subsequently the QT time. In severe cases of Hyper-K we see bizarre QRS morphology and what's called "sine-wave" which means the QRS and T wave become indistinguishable.