1
WGU D116 Unit 3 Questions with Answers (100%
Correct Answers)
A patient asks his provider to explain what drug tolerance means.
The provider responds by telling the patient that when tolerance
occurs, it means the patient __________. Answer: may need increased
amounts of the drug over time
When tolerance develops, a dose increase may be needed because a
decreased response may occur with prolonged use
A group of nursing students asks a nurse to explain the blood-brain
barrier.
The nurse would be correct to say that the blood-brain barrier
__________. Answer: Prevents some potentially toxic substances from
crossing into the central nervous system
Infants are more sensitive to CNS drugs and require lower doses
Prevents highly ionized and protein-bound drugs from entering
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,2
Allows lipid-soluble drugs drugs and drugs that use specific transport
systems to enter
A pregnant patient is in premature labor.
Which class of drug will she be given? Answer: Beta 2 agonist (helper)
Part of the peripheral adrenergic receptor subtypes (epi/norepi)
Beta2 agonists cause relaxation of the uterine muscles, slowing or
stopping the contractions that precipitate labor
Beta2 ANTagonist would increase constriction of the uterine muscles
What type of drug class has effects on the heart and arterioles? Answer:
Alpha1 agonist
Anticcholinergic drugs are given for what effects? Answer: Urinary and
GI tracts
They do not affect the urine muscles
A nurse is explaining the activation of beta-2 receptors to nursing
students during a clinical rotation at the hospital.
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,3
Which statement by a student demonstrates a need for further
teaching? Answer: "Beta2 activation results in contraction of the uterine
muscles"
Beta2 activation DOES result in vasodilation of skeletal muscles,
bronchodilation, and glycogenolysis, and RELAXATION of uterine
muscles
A provider is teaching a patient about a medication that alters the
sympathetic nervous system functions. To evaluate understanding, the
provider asks the patient to describe which functions the sympathetic
nervous system regulates.
Which answer indicates the need for further teaching? Answer: "The
digestive functions of the body"
All apart of the sympathetic nervous system:
1. fight or flight
2. cardiovascular system
3. body temperature
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, 4
A patient is experiencing toxic side effects from atropine, including
delirium and hallucinations.
Which medication will the provider ask the nurse to administer?
Answer: Physostigmine (Mestinon, Regonol)
Drug of choice for treating poisoning from atropine and other drugs
that cause muscarinic blockage ie: atropine (Muscarinic Antagonist)
What drug is used to treat Alzheimer's Disease? Answer: Donepezil
A patient who has myasthenia gravis will be taking neostigmine.
What should the nurse emphasize when teaching this patient about the
medication? Answer: Take a supplementary dose before exercise
You have ordered pilocarpine. You understand that the drug stimulates
muscarinic receptors.
Which action would you expect the drug to have? Answer: Lowering of
intraocular pressure in pts with glaucoma
Also used to treat dry mouth because it increases salivary glands "Rest
and digest"
© 2025 All rights reserved
WGU D116 Unit 3 Questions with Answers (100%
Correct Answers)
A patient asks his provider to explain what drug tolerance means.
The provider responds by telling the patient that when tolerance
occurs, it means the patient __________. Answer: may need increased
amounts of the drug over time
When tolerance develops, a dose increase may be needed because a
decreased response may occur with prolonged use
A group of nursing students asks a nurse to explain the blood-brain
barrier.
The nurse would be correct to say that the blood-brain barrier
__________. Answer: Prevents some potentially toxic substances from
crossing into the central nervous system
Infants are more sensitive to CNS drugs and require lower doses
Prevents highly ionized and protein-bound drugs from entering
© 2025 All rights reserved
,2
Allows lipid-soluble drugs drugs and drugs that use specific transport
systems to enter
A pregnant patient is in premature labor.
Which class of drug will she be given? Answer: Beta 2 agonist (helper)
Part of the peripheral adrenergic receptor subtypes (epi/norepi)
Beta2 agonists cause relaxation of the uterine muscles, slowing or
stopping the contractions that precipitate labor
Beta2 ANTagonist would increase constriction of the uterine muscles
What type of drug class has effects on the heart and arterioles? Answer:
Alpha1 agonist
Anticcholinergic drugs are given for what effects? Answer: Urinary and
GI tracts
They do not affect the urine muscles
A nurse is explaining the activation of beta-2 receptors to nursing
students during a clinical rotation at the hospital.
© 2025 All rights reserved
,3
Which statement by a student demonstrates a need for further
teaching? Answer: "Beta2 activation results in contraction of the uterine
muscles"
Beta2 activation DOES result in vasodilation of skeletal muscles,
bronchodilation, and glycogenolysis, and RELAXATION of uterine
muscles
A provider is teaching a patient about a medication that alters the
sympathetic nervous system functions. To evaluate understanding, the
provider asks the patient to describe which functions the sympathetic
nervous system regulates.
Which answer indicates the need for further teaching? Answer: "The
digestive functions of the body"
All apart of the sympathetic nervous system:
1. fight or flight
2. cardiovascular system
3. body temperature
© 2025 All rights reserved
, 4
A patient is experiencing toxic side effects from atropine, including
delirium and hallucinations.
Which medication will the provider ask the nurse to administer?
Answer: Physostigmine (Mestinon, Regonol)
Drug of choice for treating poisoning from atropine and other drugs
that cause muscarinic blockage ie: atropine (Muscarinic Antagonist)
What drug is used to treat Alzheimer's Disease? Answer: Donepezil
A patient who has myasthenia gravis will be taking neostigmine.
What should the nurse emphasize when teaching this patient about the
medication? Answer: Take a supplementary dose before exercise
You have ordered pilocarpine. You understand that the drug stimulates
muscarinic receptors.
Which action would you expect the drug to have? Answer: Lowering of
intraocular pressure in pts with glaucoma
Also used to treat dry mouth because it increases salivary glands "Rest
and digest"
© 2025 All rights reserved
