Preexcitation syndromes occur when accessory conduction pathways exist between the atria and ventricles that bypass the AV node and bundle of His and allow the atria to depolarize the ventricles earlier than usual.
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Q20: Junctional tachycardia has:
A) an irregular rhythm.
B) a
Q21: In AVNRT:
A) accessory conduction pathways exist between
Q22: Criteria for WPW include:
A) a PR interval
Q23: Initial treatment of unstable junctional tachycardia includes:
A)
Q24: Impulses that originate in the AV junction
Q25: P' waves that originate from the AV
Q26: PJCs are thought to result from enhanced
Q27: Junctional escape rhythm with a rate of
Q28: The sustained rapid ventricular rates and retrograde
Q30: Patients with WPW are vulnerable to PSVT.
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