A. Sinus bradycardia a. often occurs naturally. b. is considered abnormal in athletes. c. is often seen in Wolff–Parkinson–White syndrome. d. is caused by increased sympathetic stimulation. B. Characteristics….
a small area of myocardium that is depolarized early produces a characteristic slurred initial downstroke in the QRS complex.
A. With preexcitation syndromes,
a. conduction of the impulse from the atria to the ventricles is delayed in
the AV node.
b. the heart is stimulated to beat faster.
c. wide, bizarre QRS complexes are generated.
d. impulses are conducted through accessory conduction pathways between
the atria and ventricles
B . In WPW,
a. the T wave is inverted.
b. impulses bypass the AV node by traveling from the atria to the ventricles
via the bundle of Kent.
c. a small area of myocardium that is depolarized early produces a
characteristic slurred initial downstroke in the QRS complex.
d. the PR interval is prolonged.
C. PSVT stands for
a. premature ventricular tachycardia.
b. premature atrial tachycardia
c. paroxysmal supraventricular tachycardia.
d. paradoxical supraventricular tachycardia.