WEEK 5 STUDY GUIDE
Alterations in Neurobiological Functions
Comprehensive Review
Exam Study Guide
Focused on Key Concepts
, lOMoARcPSD| 51648332
Alterations in Neurobiological Functions
DEPRESSION
Introduction to Depression
Major depressive disorder is a mood disorder characterized by depressive symptoms that
last longer than 2 weeks. Though the exact cause is unknown, depression can be
influenced by genetic and environmental factors. Stressful life events, such as giving birth
or experiencing emotional trauma, can also impact the development of depression.
Recent research has tied depression to decreased activity of
the prefrontal cortex (Buelt, 2023). The prefrontal cortex controls attention, memory, mood, and
, , , , , , , , , , , , ,
personality.
This learning module focuses on disease processes associated with depression and enables yo
, , , , , , , , , , , ,
u to meet the following course outcomes:
, , , , , ,
● CO 1: Analyze pathophysiologic mechanisms associated with selected disease stat
, , , , , , , , ,
es across the lifespan.
, , ,
● CO 2: Examine the way in which homeostatic, adaptive, and compensatory physiological
, , , , , , , , , , , ,
mechanisms can be supported and/or altered through specific therapeutic interventions
, , , , , , , , , ,
across the lifespan. , ,
● CO 3: Distinguish risk factors associated with selected disease states across the life
, , , , , , , , , , , ,
span.
● CO 4: Integrate advanced pathophysiological concepts in the diagnosis and treatment
, , , , , , , , , , ,
of health problems in selected populations.
, , , , ,
RecognizingDepression ,
The nurse practitioner (NP) is discussing a client’s reason for seeking care. Which client sta
, , , , , , , , , , , , , ,
tements should the NP recognize as being associated with depression? Select all that appl
, , , , , , , , , , , , ,
y.
“I feel so hopeless, and everyone says I look sad.”
, , , , , , , , ,
“Lately, I cannot seem to remember anything without writing it down.”
, , , , , , , , , ,
“My partner is frustrated because I can’t make decisions about our upcoming vacation.”
Downloaded by Benjamin Luca ()
, lOMoARcPSD| 51648332
“I have so much more energy these days.”
, , , , , , ,
“Never in my life have I felt so worthless; I feel guilty about everything.”
, , , , , , , , , , , , ,
---------------
Symptoms of depression can include difficultymaking decisions, feeling hopeless and sad, and f
, , , , , , , , , , , , ,
eeling guilt or self-negativity. , , ,
Impaired recent and immediate memory or episodes of extreme energy are not associated wi
, , , , , , , , , , , , ,
th major depressive disorders.
, , ,
------------------
TricyclicAntidepressants ,
The nurse practitioner (NP) prescribes a tricyclic antidepressant for a client with newly diagn
, , , , , , , , , , , , ,
osed major depressive disorder (MDD). Which statement should the NP include when provi
, , , , , , , , , , , ,
ding client education?
, ,
“This medication will take 2–
, , , ,
4 weeks to reach a therapeutic blood level.” “Most clients notice a change in their mood wit
, , , , , , , , , , , , , , , ,
hin 36 hours after the first dose.”
, , , , , ,
“Generally, 5– ,
7 days are needed for the medication to start working.” “Your symptoms should improve ov
, , , , , , , , , , , , , ,
er the next 3–4 months.”
, , , ,
-----------
It takes 2 to 4 weeks for tricyclic antidepressants to reach a therapeutic blood level.
, , , , , , , , , , , , , ,
Within 36 hours and 5 to 7 days are both too short for a therapeutic blood level of the drug to be ach
, , , , , , , , , , , , , , , , , , , , , ,
ieved. Improvement in depression should be demonstrated sooner than 3 to 4 months.
, , , , , ,, , , , , , ,
---------------
AcetylcholineandMood , ,
Which statement best explains how acetylcholine impacts mood?
, , , , , , ,
Acetylcholine regulates neural circuits in the hippocampus and prefrontal cortex. , , , , , , , , ,
Acetylcholine targets both serotonin and norepinephrine systems. Acetylcholinecontribute , , , , , , , ,
s to normal musclecontraction.
, , , ,
Acetylcholine binds to receptors on the presynaptic neuron. , , , , , , ,
--------
Acetylcholine is involved in regulating neural circuits associated with mood and emotion, particu , , , , , , , , , , , ,
larly in brain regions such as the hippocampus and prefrontal cortex. Changes in acetylcholine le
, , , , , , , , , , , , , ,
vels or receptor function in these areas may impact mood regulation and contribute to depressiv
, , , , , , , , , , , , , ,
e symptoms.
,
Downloaded,by,Benjamin,Luca,()
, lOMoARcPSD| 51648332
Acetylcholine's impact on muscle contraction is not related to its impact on mood. Acetylchol , , , , , , , , , , , , ,
ine binds to postsynaptic (not presynaptic) neuron receptors. Acetylcholine acts on two mai
, , , , , , , , , , , ,
n types of receptors: muscarinic receptors and nicotinic receptors.
, , , , , , , ,
-----
NormalPhysiologyofSerotoninand Norepi , , , , ,
nephrine
Serotonin and norepinephrine are chemical messengers that, along with dopamine and acetylc
, , , , , , , , , , ,
holine, play a crucial role in communication between nerve cells (neurons) in the brain. These ne
, , , , , , , , , , , , , , ,
urotransmitters are involved in various physiological processes and are particularly relevant to t , , , , , , , , , , , ,
he understanding of depression. Click each section below to learn more about the normalphysi
, , , , , , , , , , , , , ,
ologyof neurotransmitters. , ,
Serotonin
Synthesis and Release: Serotonin is synthesized in the neurons from the amino acid tryptopha
, , , , , , , , , , , , ,
n. Once synthesized, serotonin is stored in vesicles within the nerve terminals.
, , , , , , , , , , ,
Release and Reuptake: When a nerve impulse reaches the end of a neuron, serotonin is releas
, , , , , , , , , , , , , , ,
ed into the synapse (the gap between neurons). After release, some of the serotonin binds to rec
, , , , , , , , , , , , , , , ,
eptors on the postsynaptic neuron, transmitting the signal. The remaining serotonin is taken bac
, , , , , , , , , , , , ,
k up into the presynaptic neuron through a process called reuptake, where it can be recycled.
, , , , , , , , , , , , , , ,
Receptors: Serotonin binds to specific receptors on the postsynaptic neuron. There are various
, , , , , , , , , , , ,
subtypes of serotonin receptors (e.g., 5-HT1, 5-
, , , , , , ,
HT2), and their activation can have different effects on mood, emotion, and other physiologicalf
, , , , , , , , , , , , , ,
unctions.
Norepinephrine
Synthesis and Release: Norepinephrine is synthesized from the amino acid tyrosine. Like sero
, , , , , , , , , , , ,
tonin, it is stored in vesicles in the nerve terminals.
, , , , , , , , ,
Release and Reuptake: Upon a nerve impulse, norepinephrine is released into the synapse
, , , , , , , , , , , ,
. It then binds to receptors on the postsynaptic neuron. The unbound norepinephrine is also s
, , , , , , , , , , , , , , ,
ubject to reuptake into the presynaptic neuron for recycling.
, , , , , , , ,
Receptors: Norepinephrine primarily acts on adrenergic receptors, of which there are alpha an
, , , , , , , , , , , ,
d beta subtypes. The activation of these receptors can have various effects on mood, alertness,
, , , , , , , , , , , , , , ,
and other physiological responses.
, , ,
Downloaded,by,Benjamin,Luca,()
Alterations in Neurobiological Functions
Comprehensive Review
Exam Study Guide
Focused on Key Concepts
, lOMoARcPSD| 51648332
Alterations in Neurobiological Functions
DEPRESSION
Introduction to Depression
Major depressive disorder is a mood disorder characterized by depressive symptoms that
last longer than 2 weeks. Though the exact cause is unknown, depression can be
influenced by genetic and environmental factors. Stressful life events, such as giving birth
or experiencing emotional trauma, can also impact the development of depression.
Recent research has tied depression to decreased activity of
the prefrontal cortex (Buelt, 2023). The prefrontal cortex controls attention, memory, mood, and
, , , , , , , , , , , , ,
personality.
This learning module focuses on disease processes associated with depression and enables yo
, , , , , , , , , , , ,
u to meet the following course outcomes:
, , , , , ,
● CO 1: Analyze pathophysiologic mechanisms associated with selected disease stat
, , , , , , , , ,
es across the lifespan.
, , ,
● CO 2: Examine the way in which homeostatic, adaptive, and compensatory physiological
, , , , , , , , , , , ,
mechanisms can be supported and/or altered through specific therapeutic interventions
, , , , , , , , , ,
across the lifespan. , ,
● CO 3: Distinguish risk factors associated with selected disease states across the life
, , , , , , , , , , , ,
span.
● CO 4: Integrate advanced pathophysiological concepts in the diagnosis and treatment
, , , , , , , , , , ,
of health problems in selected populations.
, , , , ,
RecognizingDepression ,
The nurse practitioner (NP) is discussing a client’s reason for seeking care. Which client sta
, , , , , , , , , , , , , ,
tements should the NP recognize as being associated with depression? Select all that appl
, , , , , , , , , , , , ,
y.
“I feel so hopeless, and everyone says I look sad.”
, , , , , , , , ,
“Lately, I cannot seem to remember anything without writing it down.”
, , , , , , , , , ,
“My partner is frustrated because I can’t make decisions about our upcoming vacation.”
Downloaded by Benjamin Luca ()
, lOMoARcPSD| 51648332
“I have so much more energy these days.”
, , , , , , ,
“Never in my life have I felt so worthless; I feel guilty about everything.”
, , , , , , , , , , , , ,
---------------
Symptoms of depression can include difficultymaking decisions, feeling hopeless and sad, and f
, , , , , , , , , , , , ,
eeling guilt or self-negativity. , , ,
Impaired recent and immediate memory or episodes of extreme energy are not associated wi
, , , , , , , , , , , , ,
th major depressive disorders.
, , ,
------------------
TricyclicAntidepressants ,
The nurse practitioner (NP) prescribes a tricyclic antidepressant for a client with newly diagn
, , , , , , , , , , , , ,
osed major depressive disorder (MDD). Which statement should the NP include when provi
, , , , , , , , , , , ,
ding client education?
, ,
“This medication will take 2–
, , , ,
4 weeks to reach a therapeutic blood level.” “Most clients notice a change in their mood wit
, , , , , , , , , , , , , , , ,
hin 36 hours after the first dose.”
, , , , , ,
“Generally, 5– ,
7 days are needed for the medication to start working.” “Your symptoms should improve ov
, , , , , , , , , , , , , ,
er the next 3–4 months.”
, , , ,
-----------
It takes 2 to 4 weeks for tricyclic antidepressants to reach a therapeutic blood level.
, , , , , , , , , , , , , ,
Within 36 hours and 5 to 7 days are both too short for a therapeutic blood level of the drug to be ach
, , , , , , , , , , , , , , , , , , , , , ,
ieved. Improvement in depression should be demonstrated sooner than 3 to 4 months.
, , , , , ,, , , , , , ,
---------------
AcetylcholineandMood , ,
Which statement best explains how acetylcholine impacts mood?
, , , , , , ,
Acetylcholine regulates neural circuits in the hippocampus and prefrontal cortex. , , , , , , , , ,
Acetylcholine targets both serotonin and norepinephrine systems. Acetylcholinecontribute , , , , , , , ,
s to normal musclecontraction.
, , , ,
Acetylcholine binds to receptors on the presynaptic neuron. , , , , , , ,
--------
Acetylcholine is involved in regulating neural circuits associated with mood and emotion, particu , , , , , , , , , , , ,
larly in brain regions such as the hippocampus and prefrontal cortex. Changes in acetylcholine le
, , , , , , , , , , , , , ,
vels or receptor function in these areas may impact mood regulation and contribute to depressiv
, , , , , , , , , , , , , ,
e symptoms.
,
Downloaded,by,Benjamin,Luca,()
, lOMoARcPSD| 51648332
Acetylcholine's impact on muscle contraction is not related to its impact on mood. Acetylchol , , , , , , , , , , , , ,
ine binds to postsynaptic (not presynaptic) neuron receptors. Acetylcholine acts on two mai
, , , , , , , , , , , ,
n types of receptors: muscarinic receptors and nicotinic receptors.
, , , , , , , ,
-----
NormalPhysiologyofSerotoninand Norepi , , , , ,
nephrine
Serotonin and norepinephrine are chemical messengers that, along with dopamine and acetylc
, , , , , , , , , , ,
holine, play a crucial role in communication between nerve cells (neurons) in the brain. These ne
, , , , , , , , , , , , , , ,
urotransmitters are involved in various physiological processes and are particularly relevant to t , , , , , , , , , , , ,
he understanding of depression. Click each section below to learn more about the normalphysi
, , , , , , , , , , , , , ,
ologyof neurotransmitters. , ,
Serotonin
Synthesis and Release: Serotonin is synthesized in the neurons from the amino acid tryptopha
, , , , , , , , , , , , ,
n. Once synthesized, serotonin is stored in vesicles within the nerve terminals.
, , , , , , , , , , ,
Release and Reuptake: When a nerve impulse reaches the end of a neuron, serotonin is releas
, , , , , , , , , , , , , , ,
ed into the synapse (the gap between neurons). After release, some of the serotonin binds to rec
, , , , , , , , , , , , , , , ,
eptors on the postsynaptic neuron, transmitting the signal. The remaining serotonin is taken bac
, , , , , , , , , , , , ,
k up into the presynaptic neuron through a process called reuptake, where it can be recycled.
, , , , , , , , , , , , , , ,
Receptors: Serotonin binds to specific receptors on the postsynaptic neuron. There are various
, , , , , , , , , , , ,
subtypes of serotonin receptors (e.g., 5-HT1, 5-
, , , , , , ,
HT2), and their activation can have different effects on mood, emotion, and other physiologicalf
, , , , , , , , , , , , , ,
unctions.
Norepinephrine
Synthesis and Release: Norepinephrine is synthesized from the amino acid tyrosine. Like sero
, , , , , , , , , , , ,
tonin, it is stored in vesicles in the nerve terminals.
, , , , , , , , ,
Release and Reuptake: Upon a nerve impulse, norepinephrine is released into the synapse
, , , , , , , , , , , ,
. It then binds to receptors on the postsynaptic neuron. The unbound norepinephrine is also s
, , , , , , , , , , , , , , ,
ubject to reuptake into the presynaptic neuron for recycling.
, , , , , , , ,
Receptors: Norepinephrine primarily acts on adrenergic receptors, of which there are alpha an
, , , , , , , , , , , ,
d beta subtypes. The activation of these receptors can have various effects on mood, alertness,
, , , , , , , , , , , , , , ,
and other physiological responses.
, , ,
Downloaded,by,Benjamin,Luca,()
