Here's a 65-year-old diabetic patient with chronic renal failure
who's under dialysis therapy but gets sick, fails to come to dialysis for a week
because of stomach cramps and diarrhea that developed after eating at a fast food restaurant.
When she comes finally for her dialysis, they get this ECG.
What does this ECG show?
Notice the pointed T waves that you wouldn't wanna sit on.
This ECG is diagnostic of hyperkalemia.
This patient had a serum potassium of 6.9% because they weren't getting dialyzed.
One of the complications of renal failure is hyperkalemia
and one of the things that we do dialysis for is to reduce that serum potassium.
This patient missed a number of dialysis
and consequently, has a serum potassium that's markedly elevated, needs urgent dialysis.
Thank you very much for being with me for this lecture.
I look forward to being with you on the next one.