system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
ECG changes in Hypokalemia are?
assistant
The correct answer is  Electrocardiographic changes in hypokalemia include broad flat T waves, ST depression, u wave and QT prolongation. These are most marked when serum K+ is <2.7 mmol/L. (reference: harrisons principles of internal medicine,19E page-307)