Long QT 3: The ECG frequently shows an extended ST segment with a relatively narrow T wave which can be peaked. This is also the finding when hypocalcemia prolongs the QT interval. Beta-blockers ...
A prolonged QT interval has a variety of causes and can be a very serious ECG finding, as it may lead to the potentially fatal arrhythmia polymorphic ventricular tachycardia (Torsades de Pointes).
HYPOCALCEMIA as a complication of metastatic ... An electrocardiogram demonstrated low voltage and a prolonged QT interval of 0.44 second at a rate of 84. Therapy with calcium lactate, 2.7 gm.
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