A drug that exerts a positive inotropic effect will: a. reduce ...

[Pea0909berry]

A drug that exerts a positive inotropic effect will:
 
  a. reduce electrical conduction in the heart.
  b. increase heart rate.
  c. increase the force of contraction of the heart.
  d. increase the viscosity of the blood.

Question 2

The nurse understands that the primary pacemaker of the heart is the:
 
  a. vagus nerve. c. SA node.
  b. bundle of His. d. AV node.

[karlss]

Answer to Question 1

ANS: C

Feedback
A Incorrect: This is a negative dromotropic effect.
B Incorrect: This is a positive chronotropic effect.
C Correct: This is a positive inotropic effect.
D Incorrect: This is not a tropic effect.

Answer to Question 2

ANS: C

Feedback
A Incorrect: The vagus nerve is not the pacemaker of the heart.
B Incorrect: The bundle of His are fibers that flow throughout the ventricles, but are not the pacemaker.
C Correct: The sinoatrial node is the pacemaker of the heart.
D Incorrect: Although the atrioventricular node does invoke electrical impulses, it is not the primary pacemaker of the heart.

[Pea0909berry]

Great answer, keep it coming

[nguyenhoanhat]

Gracias!