OWNER: EMILLYCHARLOTTE
COPYRIGHT STATEMENT: ©2024 EMILLYCHARLOTTE. ALL RIGHTS
RESERVED
FIRST PUBLISHED: SEPTEMBER 2024
MSN 620 Final - Mental Health Exam
Study Guide
Define bipolar disorder - Correct Answer✔️✔️-Bipolar disorder (BD) is characterized by
chronically occurring episodes of mania or hypomania alternating with depression
What are the categories of bipolar disorder? - Correct Answer✔️✔️-bipolar I disorder (BD-
I)
bipolar II disorder (BD-II)
cyclothymic disorder
other specified bipolar and related disorders
bipolar or related disorders, unspecified.
Describe the etiology of bipolar disorder. - Correct Answer✔️✔️-interaction of genetic,
epigenetic, neurochemical, and environmental factors. Heritability is well established.
short arm of chromosome 11
childhood maltreatment, particularly emotional abuse or neglect, has been linked to the
later development of the condition. Other stressful life events associated with
developing BD include childbirth, divorce, unemployment, disability, and early parental
loss. In adulthood, "stressful life event" came 6 months before a manic or depressive
episode.
1/20
,TITLE: EMILLYCHARLOTTE 2024/2025 ACADEMIC PERIOD
OWNER: EMILLYCHARLOTTE
COPYRIGHT STATEMENT: ©2024 EMILLYCHARLOTTE. ALL RIGHTS
RESERVED
FIRST PUBLISHED: SEPTEMBER 2024
The etiology of BD is thought to involve imbalances in systems associated with
monoaminergic neurotransmitters, particularly dopamine and serotonin, and intracellular
signaling systems that regulate mood.
a diffuse pattern of brain alterations including smaller subcortical volumes, lower cortical
thickness and altered white matter integrity in groups of individuals with bipolar disorder
compared to healthy controls
When is the peak of bipolar disorder age wise? - Correct Answer✔️✔️-There are two
peaks in the age of onset: 15-24 years and 45-54 years, with more than 70% of
individuals manifesting clinical characteristics of the condition before 25 years of age.
Patho of bipolar disorder - Correct Answer✔️✔️-Evidence supports a strong genetic
component and an epigenetic contribution. Human studies have shown changes in
brain-derived neurotrophic factor (BDNF), nerve growth factor (NGF), neurotrophin-3
(NT-3), and neurotrophin-4 (NT-4) in patients with BD, indicating neurotrophic signaling
is a molecular mechanism associated with decreased neuroplasticity. Other proposed
mechanisms include mitochondrial dysfunction, oxidative stress, immune-inflammatory
imbalance, and compromised hypothalamic-pituitary-adrenal axis. Additionally,
neuroimaging studies have shown "evidence of change in regional activity, functional
connectivity, neuronal activity, and bioenergetics associated with BD," and anatomic
studies have revealed dendritic spine loss in the dorsolateral prefrontal cortex in the
post-mortem brain tissue of patients with BD.
2/20
, TITLE: EMILLYCHARLOTTE 2024/2025 ACADEMIC PERIOD
OWNER: EMILLYCHARLOTTE
COPYRIGHT STATEMENT: ©2024 EMILLYCHARLOTTE. ALL RIGHTS
RESERVED
FIRST PUBLISHED: SEPTEMBER 2024
What are some characteristics that can increase the likelihood of a bipolar rather than
unipolar diagnosis? - Correct Answer✔️✔️-Inquiry into past hypomanic or manic episodes
is particularly important for patients with early onset of their first depressive episode (ie,
in patients younger than 25 years), a high number of lifetime depressive episodes (5 or
more episodes), and a family history of bipolar disorder. These findings in the patient's
history have been shown to increase the likelihood of a bipolar rather than a unipolar
diagnosis.
Other factors increasing the likelihood of a diagnostic change from MDD to BD include
the presence of psychosis, unresponsiveness to antidepressants, the induction of manic
or hypomanic symptoms by antidepressant drug treatment, and polymorbidity, defined
as 3 or more comorbid conditions.
Describe the criteria to diagnose BD-I - Correct Answer✔️✔️-Criteria met for at least one
manic episode, which might have been preceded or followed by a hypomanic episode
or major depressive episode (hypomanic or major depressive episodes are not required
for the diagnosis).
Describe the criteria to diagnose BD-II - Correct Answer✔️✔️-Criteria met for at least one
current or past hypomanic episode and a major depressive episode; no manic episodes.
Describe the criteria to diagnose cyclothymic disorder. - Correct Answer✔️✔️-Hypomanic
symptoms that do not meet the criteria for hypomanic episodes and depressive
symptoms that do not meet the criteria for major depressive episodes in
3/20