WGU D116 Unit 3 Latest 2025/2026
Questions and Correct Answers Graded
A+|Assured Success
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 __________. -
CORRECT ANSWER-Prevents some potentially toxic substances from crossing
into the central nervous system
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 __________. - CORRECT 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
Infants are more sensitive to CNS drugs and require lower doses
Prevents highly ionized and protein-bound drugs from entering
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? - CORRECT 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? - CORRECT
ANSWER-Alpha1 agonist
Anticcholinergic drugs are given for what effects? - CORRECT 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.
Which statement by a student demonstrates a need for further teaching? -
CORRECT 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? - CORRECT ANSWER-
"The digestive functions of the body"
All apart of the sympathetic nervous system:
1. fight or flight
2. cardiovascular system
3. body temperature
A patient is experiencing toxic side effects from atropine, including delirium and
hallucinations.
Which medication will the provider ask the nurse to administer? - CORRECT
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? - CORRECT ANSWER-
Donepezil
A patient who has myasthenia gravis will be taking neostigmine.
Questions and Correct Answers Graded
A+|Assured Success
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 __________. -
CORRECT ANSWER-Prevents some potentially toxic substances from crossing
into the central nervous system
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 __________. - CORRECT 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
Infants are more sensitive to CNS drugs and require lower doses
Prevents highly ionized and protein-bound drugs from entering
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? - CORRECT 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? - CORRECT
ANSWER-Alpha1 agonist
Anticcholinergic drugs are given for what effects? - CORRECT 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.
Which statement by a student demonstrates a need for further teaching? -
CORRECT 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? - CORRECT ANSWER-
"The digestive functions of the body"
All apart of the sympathetic nervous system:
1. fight or flight
2. cardiovascular system
3. body temperature
A patient is experiencing toxic side effects from atropine, including delirium and
hallucinations.
Which medication will the provider ask the nurse to administer? - CORRECT
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? - CORRECT ANSWER-
Donepezil
A patient who has myasthenia gravis will be taking neostigmine.
