NMNC 1230 EXAM 3 UPDATED ACTUAL QUESTIONS
AND CORRECT ANSWERS
Question:
The nurse is aware that adrenergic drugs produce effects similar to which of these
nervous systems?
a. Central nervous system
b. Somatic nervous system
c. Sympathetic nervous system
d. Parasympathetic nervous system
Answer:
ANS: C Adrenergic drugs mimic the effects of the sympathetic nervous system.
Question:
When an adrenergic drug stimulates beta 1-adrenergic receptors, the result is an
increased force of contraction, which is known as what type of effect?
a. Positive inotropic
b. Anti-adrenergic
c. Negative dromotropic
d. Positive chronotropic
Answer:
ANS: A An increased force of contraction is known as a positive inotropic effect.
Question:
When a patient is taking an adrenergic drug, the nurse expects to observe which effect?
a. Increased heart rate
b. Bronchial constriction
c. Constricted pupils
d. Increased intestinal peristalsis
Answer:
ANS: A Increased heart rate is one of the effects of adrenergic drugs. Sympathetic
nervous system stimulation also results in bronchodilation, dilated pupils, and
decreased gastrointestinal mobility, depending upon which receptors are stimulated.
Question:
An adrenergic agonist is ordered for a patient in shock. The nurse will note that this
drug has had its primary intended effect if which expected outcome occurs?
a. Volume restoration
b. Increased blood pressure
c. Decreased urine output
d. Reduced anxiety
Answer:
ANS: B For a patient in shock, a primary benefit of an adrenergic agonist drug is to
increase blood pressure. A drug in this category should not be used in place of volume
restoration, nor does it provide volume restoration (IV fluids do this). Adrenergic
agonists may enhance urine output if cardiac output and perfusion to the kidneys
increase. These drugs do not reduce anxiety.
, Question:
The nurse is presenting information to a class of students about adrenergic drugs.
Which are effects of drugs that stimulate the sympathetic nervous system? (Select all
that apply.) a. Dilation of bronchioles
b. Constriction of bronchioles
c. Decreased heart rate
d. Increased heart rate
e. Dilated pupils
f. Constricted pupils
g. Glycogenolysis
Answer:
ANS: A, D, E, G Stimulation of the sympathetic nervous system causes bronchodilation,
increased heart rate, pupil dilation, and *glycogenolysis* as well as many other effects
(see Table 18-1). The other responses are effects that occur as a result of the stimulation
of the parasympathetic nervous system.
Question:
When assessing for cardiovascular effects of an adrenergic (sympathomimetic) drug,
the nurse understands that these drugs produce
1. a positive inotropic, positive chronotropic, and positive dromotropic effect.
2. a positive inotropic, negative chronotropic, and negative dromotropic effect.
3. a negative inotropic, positive chronotropic, and positive dromotropic effect.
4. a negative inotropic, negative chronotropic, and negative dromotropic effect.
Answer:
ANS: 1 Adrenergic stimulation of the beta1-adrenergic receptors on the myocardium
and in the conduction system of the heart results in an increased heart rate (positive
chronotropic effect), increased contractility (positive inotropic effect), and increased
conductivity (positive dromotropic effect).
Question:
A hypertensive crisis may occur if adrenergic
(sympathomimetic) drugs are given along with
1. beta blockers.
2. diuretics.
3. alpha1 blockers.
4. monoamine oxidase (MAO) inhibitors.
Answer:
ANS: 4 Adrenergic drugs combined with MAO inhibitors can lead to extreme
hypertension. All the other drugs listed are used to treat hypertension.
AND CORRECT ANSWERS
Question:
The nurse is aware that adrenergic drugs produce effects similar to which of these
nervous systems?
a. Central nervous system
b. Somatic nervous system
c. Sympathetic nervous system
d. Parasympathetic nervous system
Answer:
ANS: C Adrenergic drugs mimic the effects of the sympathetic nervous system.
Question:
When an adrenergic drug stimulates beta 1-adrenergic receptors, the result is an
increased force of contraction, which is known as what type of effect?
a. Positive inotropic
b. Anti-adrenergic
c. Negative dromotropic
d. Positive chronotropic
Answer:
ANS: A An increased force of contraction is known as a positive inotropic effect.
Question:
When a patient is taking an adrenergic drug, the nurse expects to observe which effect?
a. Increased heart rate
b. Bronchial constriction
c. Constricted pupils
d. Increased intestinal peristalsis
Answer:
ANS: A Increased heart rate is one of the effects of adrenergic drugs. Sympathetic
nervous system stimulation also results in bronchodilation, dilated pupils, and
decreased gastrointestinal mobility, depending upon which receptors are stimulated.
Question:
An adrenergic agonist is ordered for a patient in shock. The nurse will note that this
drug has had its primary intended effect if which expected outcome occurs?
a. Volume restoration
b. Increased blood pressure
c. Decreased urine output
d. Reduced anxiety
Answer:
ANS: B For a patient in shock, a primary benefit of an adrenergic agonist drug is to
increase blood pressure. A drug in this category should not be used in place of volume
restoration, nor does it provide volume restoration (IV fluids do this). Adrenergic
agonists may enhance urine output if cardiac output and perfusion to the kidneys
increase. These drugs do not reduce anxiety.
, Question:
The nurse is presenting information to a class of students about adrenergic drugs.
Which are effects of drugs that stimulate the sympathetic nervous system? (Select all
that apply.) a. Dilation of bronchioles
b. Constriction of bronchioles
c. Decreased heart rate
d. Increased heart rate
e. Dilated pupils
f. Constricted pupils
g. Glycogenolysis
Answer:
ANS: A, D, E, G Stimulation of the sympathetic nervous system causes bronchodilation,
increased heart rate, pupil dilation, and *glycogenolysis* as well as many other effects
(see Table 18-1). The other responses are effects that occur as a result of the stimulation
of the parasympathetic nervous system.
Question:
When assessing for cardiovascular effects of an adrenergic (sympathomimetic) drug,
the nurse understands that these drugs produce
1. a positive inotropic, positive chronotropic, and positive dromotropic effect.
2. a positive inotropic, negative chronotropic, and negative dromotropic effect.
3. a negative inotropic, positive chronotropic, and positive dromotropic effect.
4. a negative inotropic, negative chronotropic, and negative dromotropic effect.
Answer:
ANS: 1 Adrenergic stimulation of the beta1-adrenergic receptors on the myocardium
and in the conduction system of the heart results in an increased heart rate (positive
chronotropic effect), increased contractility (positive inotropic effect), and increased
conductivity (positive dromotropic effect).
Question:
A hypertensive crisis may occur if adrenergic
(sympathomimetic) drugs are given along with
1. beta blockers.
2. diuretics.
3. alpha1 blockers.
4. monoamine oxidase (MAO) inhibitors.
Answer:
ANS: 4 Adrenergic drugs combined with MAO inhibitors can lead to extreme
hypertension. All the other drugs listed are used to treat hypertension.
