Prolonged QT interval is not seen in
Correct Answer: Hypercalcemia
Description: 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 cuases of prolonged QT Bradycardia Central Nervous System diseases (intracranial trauma, subarachnoid hemorrhage, stroke) Congenital long QT syndrome Dysautonomy (Diabetes mellitus, amyloidosis, others) Elderly Electrolyte disturbances (hypomagnesemia, hypokalemia) Hea Failure Hypoglycaemia Hypothermia Hypothyroidism Ion channel polymorphism Ischemic myocardiopathy Obesity Reduced repolarization reserve Ref : Harrison 20th edition pg 1534
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