NURS 660 EXAM 1/ 300 ACTUAL QUESTIONS AND
CORRECT ANSWERS WITH RATIONALE LATEST
UPDATE ALREADY GRADED A+ ASSURED PASS
This NURS 660 Exam 1 resource is a comprehensive, 300-question multiple-
choice study guide covering advanced psychiatric nursing. It is organized into nine
distinct sections that systematically address essential topics, including foundational
neurobiology, the pharmacology and side-effect profiles of antipsychotic
medications, components of the mental status exam, and patient communication
techniques. The guide delves into critical pharmacokinetic and pharmacodynamic
concepts, as well as clinical monitoring for adverse effects. Each question includes
a detailed rationale to explain the correct answer, enhancing critical thinking. This
resource is designed for graduate-level nursing students to build clinical reasoning
and prepare effectively for examinations.
Section 1: Foundations of Psychopharmacology and Neurobiology
1. Glutamate is recognized as the major excitatory neurotransmitter in the central
nervous system. Which function is it most associated with?
A) Inhibitory control of motor movements
B) Modulation of pain perception
C) Synaptic plasticity and memory formation
D) Regulation of sleep-wake cycles
Answer: C
Rationale: Glutamate is the primary excitatory neurotransmitter and is critically
involved in synaptic plasticity, which underlies learning and memory. While it has
other roles, its central function in cognitive processes and neuroplasticity is a key
concept in neurobiology relevant to psychiatric disorders.
2. A patient with schizophrenia is being evaluated for treatment. The
pathophysiology of this disorder is most closely linked to an overactivity of which
neurotransmitter system?
A) Norepinephrine
B) Serotonin
C) Dopamine
,D) Acetylcholine
Answer: C
Rationale: The dopamine hypothesis of schizophrenia posits that an overactivity of
dopamine, particularly in the mesolimbic pathway, contributes to the positive
symptoms of the disorder, such as hallucinations and delusions. This is the
foundational rationale for the mechanism of action of antipsychotic medications.
3. An alteration in which receptor function is most associated with the
development of psychotic symptoms?
A) GABA-A receptor
B) NMDA receptor
C) Nicotinic acetylcholine receptor
D) Alpha-2 adrenergic receptor
Answer: B
Rationale: Hypofunction of the NMDA (N-methyl-D-aspartate) glutamate receptor
is another key neurobiological model for schizophrenia. This hypofunction can
lead to downstream effects that produce both positive and negative symptoms,
making it a significant target for research and treatment.
4. The mechanism of action for many antipsychotic medications involves blocking
which neurotransmitter receptor?
A) Serotonin 5-HT2A receptors
B) Dopamine D2 receptors
C) Norepinephrine alpha-1 receptors
D) Histamine H1 receptors
Answer: B
Rationale: Many typical and atypical antipsychotics work primarily by
antagonizing dopamine D2 receptors in the brain. This action helps to reduce the
positive symptoms of psychosis by decreasing dopaminergic transmission in the
mesolimbic pathway.
5. In the context of treating schizophrenia, a patient's negative symptoms, such as
flat affect and social withdrawal, are thought to be related to which condition?
A) Excessive dopamine in the mesolimbic pathway
B) Dopamine deficiency in the mesocortical pathway
C) Overactivity of glutamate in the prefrontal cortex
D) Increased GABA transmission in the basal ganglia
Answer: B
Rationale: Negative symptoms are associated with a hypofrontality, which is a
deficiency of dopamine in the mesocortical pathway that projects to the prefrontal
,cortex. This pathway regulates motivation, social behavior, and emotional
expression.
6. The therapeutic effect of aripiprazole (Abilify) is unique because it acts as a:
A) Full dopamine D2 receptor antagonist
B) Partial dopamine D2 receptor agonist
C) Dopamine and serotonin reuptake inhibitor
D) Selective serotonin reuptake inhibitor
Answer: B
Rationale: Aripiprazole is a third-generation antipsychotic that functions as a
partial agonist at D2 receptors. This means it can both block and stimulate the
receptor, stabilizing dopamine activity and leading to fewer side effects like
extrapyramidal symptoms and hyperprolactinemia.
7. A patient with schizophrenia has a history of poor adherence to medication. The
provider is considering a long-acting injectable (LAI) antipsychotic. Which of the
following is a major advantage of using an LAI?
A) Immediate onset of action compared to oral formulations
B) Lower cost compared to all oral antipsychotics
C) Guaranteed medication adherence for the duration of the injection's effect
D) Ability to provide the same medication as the oral formulation
Answer: C
Rationale: Long-acting injectable antipsychotics are a critical tool for managing
non-adherence. Once administered, they provide a steady release of medication,
ensuring therapeutic blood levels and reducing the risk of relapse, despite not being
a complete guarantee of adherence.
8. Before starting antipsychotic medications, which of the following baseline
assessments is essential for monitoring and safety?
A) Electrocardiogram for all patients
B) Complete blood count and basic metabolic panel
C) Fasting plasma glucose, lipid panel, weight, and blood pressure
D) Liver function tests and thyroid panel
Answer: C
Rationale: Antipsychotics, especially atypical ones, have significant metabolic side
effects. Baseline assessments of weight, body mass index, blood pressure, fasting
plasma glucose, and a lipid panel are essential to establish a starting point for
monitoring weight gain, diabetes, and dyslipidemia.
, 9. The phenomenon where a drug's effect is diminished after repeated use,
requiring higher doses for the same effect, is known as:
A) Tolerance
B) Dependence
C) Sensitization
D) Potentiation
Answer: A
Rationale: Tolerance is a key concept in pharmacokinetics where the body adapts
to a drug, requiring a higher dose to achieve the same therapeutic or side effect.
This is distinct from dependence, which involves a withdrawal syndrome upon
cessation.
10. A patient on a new psychiatric medication develops an adverse effect that is
due to blocking the H1 histamine receptor. This adverse effect is most likely:
A) Extrapyramidal symptoms
B) Sedation and weight gain
C) Orthostatic hypotension
D) Prolonged QTc interval
Answer: B
Rationale: Histamine H1 receptor antagonism is a common property of many
sedating psychiatric medications. It is responsible for significant side effects like
drowsiness and increased appetite, which can lead to weight gain. Anticholinergic
properties are more associated with EPS, while alpha-1 antagonism causes
orthostatic hypotension.
11. A patient is admitted to the emergency department after an overdose of a
benzodiazepine. The specific antidote that should be administered is:
A) Naloxone (Narcan)
B) Flumazenil (Romazicon)
C) Diphenhydramine (Benadryl)
D) Atropine
Answer: B
Rationale: Flumazenil is a competitive benzodiazepine receptor antagonist that
reverses the sedative effects of benzodiazepines. It is used in emergency settings
for benzodiazepine overdose. Naloxone is for opioid overdose.
12. The most concerning and potentially fatal adverse effect of clozapine (Clozaril)
that requires strict monitoring is:
A) Weight gain and metabolic syndrome
B) Agranulocytosis and neutropenia
CORRECT ANSWERS WITH RATIONALE LATEST
UPDATE ALREADY GRADED A+ ASSURED PASS
This NURS 660 Exam 1 resource is a comprehensive, 300-question multiple-
choice study guide covering advanced psychiatric nursing. It is organized into nine
distinct sections that systematically address essential topics, including foundational
neurobiology, the pharmacology and side-effect profiles of antipsychotic
medications, components of the mental status exam, and patient communication
techniques. The guide delves into critical pharmacokinetic and pharmacodynamic
concepts, as well as clinical monitoring for adverse effects. Each question includes
a detailed rationale to explain the correct answer, enhancing critical thinking. This
resource is designed for graduate-level nursing students to build clinical reasoning
and prepare effectively for examinations.
Section 1: Foundations of Psychopharmacology and Neurobiology
1. Glutamate is recognized as the major excitatory neurotransmitter in the central
nervous system. Which function is it most associated with?
A) Inhibitory control of motor movements
B) Modulation of pain perception
C) Synaptic plasticity and memory formation
D) Regulation of sleep-wake cycles
Answer: C
Rationale: Glutamate is the primary excitatory neurotransmitter and is critically
involved in synaptic plasticity, which underlies learning and memory. While it has
other roles, its central function in cognitive processes and neuroplasticity is a key
concept in neurobiology relevant to psychiatric disorders.
2. A patient with schizophrenia is being evaluated for treatment. The
pathophysiology of this disorder is most closely linked to an overactivity of which
neurotransmitter system?
A) Norepinephrine
B) Serotonin
C) Dopamine
,D) Acetylcholine
Answer: C
Rationale: The dopamine hypothesis of schizophrenia posits that an overactivity of
dopamine, particularly in the mesolimbic pathway, contributes to the positive
symptoms of the disorder, such as hallucinations and delusions. This is the
foundational rationale for the mechanism of action of antipsychotic medications.
3. An alteration in which receptor function is most associated with the
development of psychotic symptoms?
A) GABA-A receptor
B) NMDA receptor
C) Nicotinic acetylcholine receptor
D) Alpha-2 adrenergic receptor
Answer: B
Rationale: Hypofunction of the NMDA (N-methyl-D-aspartate) glutamate receptor
is another key neurobiological model for schizophrenia. This hypofunction can
lead to downstream effects that produce both positive and negative symptoms,
making it a significant target for research and treatment.
4. The mechanism of action for many antipsychotic medications involves blocking
which neurotransmitter receptor?
A) Serotonin 5-HT2A receptors
B) Dopamine D2 receptors
C) Norepinephrine alpha-1 receptors
D) Histamine H1 receptors
Answer: B
Rationale: Many typical and atypical antipsychotics work primarily by
antagonizing dopamine D2 receptors in the brain. This action helps to reduce the
positive symptoms of psychosis by decreasing dopaminergic transmission in the
mesolimbic pathway.
5. In the context of treating schizophrenia, a patient's negative symptoms, such as
flat affect and social withdrawal, are thought to be related to which condition?
A) Excessive dopamine in the mesolimbic pathway
B) Dopamine deficiency in the mesocortical pathway
C) Overactivity of glutamate in the prefrontal cortex
D) Increased GABA transmission in the basal ganglia
Answer: B
Rationale: Negative symptoms are associated with a hypofrontality, which is a
deficiency of dopamine in the mesocortical pathway that projects to the prefrontal
,cortex. This pathway regulates motivation, social behavior, and emotional
expression.
6. The therapeutic effect of aripiprazole (Abilify) is unique because it acts as a:
A) Full dopamine D2 receptor antagonist
B) Partial dopamine D2 receptor agonist
C) Dopamine and serotonin reuptake inhibitor
D) Selective serotonin reuptake inhibitor
Answer: B
Rationale: Aripiprazole is a third-generation antipsychotic that functions as a
partial agonist at D2 receptors. This means it can both block and stimulate the
receptor, stabilizing dopamine activity and leading to fewer side effects like
extrapyramidal symptoms and hyperprolactinemia.
7. A patient with schizophrenia has a history of poor adherence to medication. The
provider is considering a long-acting injectable (LAI) antipsychotic. Which of the
following is a major advantage of using an LAI?
A) Immediate onset of action compared to oral formulations
B) Lower cost compared to all oral antipsychotics
C) Guaranteed medication adherence for the duration of the injection's effect
D) Ability to provide the same medication as the oral formulation
Answer: C
Rationale: Long-acting injectable antipsychotics are a critical tool for managing
non-adherence. Once administered, they provide a steady release of medication,
ensuring therapeutic blood levels and reducing the risk of relapse, despite not being
a complete guarantee of adherence.
8. Before starting antipsychotic medications, which of the following baseline
assessments is essential for monitoring and safety?
A) Electrocardiogram for all patients
B) Complete blood count and basic metabolic panel
C) Fasting plasma glucose, lipid panel, weight, and blood pressure
D) Liver function tests and thyroid panel
Answer: C
Rationale: Antipsychotics, especially atypical ones, have significant metabolic side
effects. Baseline assessments of weight, body mass index, blood pressure, fasting
plasma glucose, and a lipid panel are essential to establish a starting point for
monitoring weight gain, diabetes, and dyslipidemia.
, 9. The phenomenon where a drug's effect is diminished after repeated use,
requiring higher doses for the same effect, is known as:
A) Tolerance
B) Dependence
C) Sensitization
D) Potentiation
Answer: A
Rationale: Tolerance is a key concept in pharmacokinetics where the body adapts
to a drug, requiring a higher dose to achieve the same therapeutic or side effect.
This is distinct from dependence, which involves a withdrawal syndrome upon
cessation.
10. A patient on a new psychiatric medication develops an adverse effect that is
due to blocking the H1 histamine receptor. This adverse effect is most likely:
A) Extrapyramidal symptoms
B) Sedation and weight gain
C) Orthostatic hypotension
D) Prolonged QTc interval
Answer: B
Rationale: Histamine H1 receptor antagonism is a common property of many
sedating psychiatric medications. It is responsible for significant side effects like
drowsiness and increased appetite, which can lead to weight gain. Anticholinergic
properties are more associated with EPS, while alpha-1 antagonism causes
orthostatic hypotension.
11. A patient is admitted to the emergency department after an overdose of a
benzodiazepine. The specific antidote that should be administered is:
A) Naloxone (Narcan)
B) Flumazenil (Romazicon)
C) Diphenhydramine (Benadryl)
D) Atropine
Answer: B
Rationale: Flumazenil is a competitive benzodiazepine receptor antagonist that
reverses the sedative effects of benzodiazepines. It is used in emergency settings
for benzodiazepine overdose. Naloxone is for opioid overdose.
12. The most concerning and potentially fatal adverse effect of clozapine (Clozaril)
that requires strict monitoring is:
A) Weight gain and metabolic syndrome
B) Agranulocytosis and neutropenia
