Medicine Sine wave pattern on ECG is done when serum potassium exceeds mEq/dl? A > 6 mEq/dl B > 7 mEq/dl C > 8 mEq/dl D > 10 mEq/dl 💡 Explanation Sine wave pattern on ECG is done when serum potassium exceeds mEq/dl? ✓ Correct Answer: C. > 8 mEq/dl