← Not Cerebral T Waves: The Beat-to-Beat Warning You Cannot Miss
Workout Quiz
4 questions. Answers are graded instantly with expert explanations.
1. Which ECG feature most strongly predicts imminent torsade de pointes
Deep symmetric T wave inversions
QTc > 480 ms
T wave alternans
Left anterior fascicular block
2. A patient with intermittent torsade is hemodynamically stable between runs. What is the most appropriate immediate intervention?
Sotalol bolus
Overdrive pacing or isoproterenol infusion
Lidocaine bolus
Amiodarone infusion
3. A 12-lead ECG shows QT prolongation and an R-on-T PVC. Why is this dangerous?
Indicates acute myocarditis
May cause pulseless electrical activity
Suggests complete heart block
Can trigger torsade or ventricular fibrillation
4. Which electrolyte pattern most commonly contributes to torsade in vomiting patients?
Hypokalemia and hypomagnesemia
Hyperkalemia and hypermagnesemia
Hypercalcemia
Hyponatremia
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