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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
QT interval is shoened in-
assistant
The correct answer is  only in hypercalcemia QT interval is shoened in the other 3 QT interval is prolonged Hypercalcemia: The most common ECG findings of hypercalcemia are a sho QT interval secondary to a shoened ST segment. There may also be a widened or flattened T wave; however, significant hypercalcemia can cause ECG changes that mimic an acute myocardial infarction. Ref Harrison 20th edition pg 1556