Question 185 · LEK · Supraventricular tachycardia
Maneuvers that increase the tone of the vagal nerve (e.g. Valsalva maneuver) are frequently effective in the emergency treatment of:
- A. atrial fibrillation.
- B. bradycardia.
- C. ventricular tachycardia with narrow QRS complexes.
- D. ventricular tachycardia with wide QRS complexes.
- E. none of the above.
Hint
Vagal manoeuvres act on the AV node; which tachycardias depend on AV nodal conduction and typically have narrow QRS complexes?
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