In Figure 18,which of the heart's pacemakers is controlling the ventricle? 
A) Sinus node
B) Atrium
C) AV node
D) Ventricle
Correct Answer:
Verified
Q14: Third-degree AV block has
A)One P wave to
Q15: In AV blocks,the P-P interval is
A)Regular.
B)Irregular.
C)Absent.
D)The same
Q16: The PR interval in Figure 18
Q17: The rhythm in Figure 18 is
Q18: In first-degree AV block,the site of the
Q20: 2:1 AV block can be either
A)Third-degree AV
Q21: Treatment for third-degree AV block usually includes
A)Digitalis.
B)Lidocaine.
C)Amiodarone.
D)Pacemaker.
Q22: In third-degree AV block,none of the sinus
Q25: All AV blocks involve a disturbance in
Q30: Third-degree AV block is also called Wenckebach.
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