NR 507 WEEK 5- EDAPT ALTERATIONS IN
NEUROBIOLOGICAL FUNCTIONS ADVANCED
PATHOPHYSIOLOGY
(CHAMBERLAIN UNIVERSITY
Alterations in Neurobiological Functions
NR 507 WEEK 5- EDAPT ALTERATIONS IN
NEUROBIOLOGICAL FUNCTIONS ADVANCED
PATHOPHYSIOLOGY
, 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 you to meet the following course outcomes:
• CO 1: Analyze pathophysiologic mechanisms associated
with selected disease states 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 lifespan.
• CO 4: Integrate advanced pathophysiological concepts in the
diagnosis and treatment of health problems in selected
populations.
Recognizing Depression
The nurse practitioner (NP) is discussing a client’s reason for
seeking care. Which client statements should the NP recognize
as being associated with depression? Select all that apply.
“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.”
, “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 difficulty making decisions,
feeling hopeless and sad, and feeling guilt or self-negativity.
Impaired recent and immediate memory or episodes of extreme
energy are not associated with major depressive disorders.
Tricyclic Antidepressants
The nurse practitioner (NP) prescribes a tricyclic antidepressant for
a client with newly diagnosed major depressive disorder (MDD).
Which statement should the NP include when providing client
education?
“This medication will take 2–4 weeks to reach a therapeutic
blood level.” “Most clients notice a change in their mood within
36 hours after the first dose.”
“Generally, 5–7 days are needed for the medication to start
working.” “Your symptoms should improve over 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 achieved. Improvement in depression
should be demonstrated sooner than 3 to 4 months.
Acetylcholine and Mood
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.
Acetylcholine contributes to normal muscle contraction.
Acetylcholine binds to receptors on the presynaptic
neuron.
Acetylcholine is involved in regulating neural circuits associated with
mood and emotion, particularly in brain regions such as the hippocampus
and prefrontal cortex. Changes in acetylcholine levels or receptor
function in these areas may impact mood regulation and contribute to
depressive symptoms.