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How does reviewing the genetic makeup of a client help guide the PMHNP in selecting medication
for clients? ✔Correct Answer-Genetic testing can assist by providing more information on how
clients may respond to certain psychotropic medications, as well as providing information on how a
client may break down and metabolize medications based on the cytochrome P450 system.
There may be an environmental exposure that turned a gene "on" that should have been "off" for
one twin to develop schizophrenia and not the other
. Both environmental and psychosocial stressors can impact mental health. Although twins may have
identical genes, their gene expression may be different.
Neuroscience ✔Correct Answer-is the study of the structure and function of the brain and is a field
which is making great advancements (Pliszka, 2016). A strong foundational understanding of
neuroscience and how the structure and function of the brain can result in mental health symptoms
is necessary to treat mental illnesses.
Some mental disorders such as Alzheimer's disease, schizophrenia, and major depressive disorder
are thought to be a result of malformations or malfunctions within the brain.
The psychiatric mental health nurse practitioner (PMHNP) must comprehend how medications
impact the brain in order to safely and effectively prescribe psychotropic medications.
Brain tissue ✔Correct Answer-is composed of gray and white matter.
gray matter ✔Correct Answer-The cerebellum, cerebrum, brain stem, and the butterfly-shaped
portion of the central spinal cord are comprised of gray matter which contains neural cell bodies,
axon terminals, dendrites, and all nerve synapses.
It is the working area of the brain and the focus of psychiatry and neurology.
Gray matter ✔Correct Answer-associated with learning.
Changes in the gray matter are linked to psychiatric diagnoses including Alzheimer's disease,
schizophrenia, and major depressive disorder.
White Matter ✔Correct Answer-contains nerve fibers that connect neurons from different regions
into functional circuits.
The myelin that coats neuronal axons is necessary for electrical impulse transmission.
, Think of the white matter as a transit system. If there are breaks in the system, then people cannot
get to their destinations.
Within the brain, these breaks affect neural communication, affecting behavior.
Damage to the myelin can impair transmission which can impact not only sensory and motor
function, but also cognition.
White matter abnormalities are associated with autism and vascular dementia.
The central sulcus separates which lobes? ✔Correct Answer-frontal lobe from parietal lobe
Frontal lobe ✔Correct Answer-Associated with movement, intelligence, abstract thinking. etc.
Broca's area ✔Correct Answer-Speech
Temporal lobe ✔Correct Answer-Involves object identification and auditory signals
Cerebellum ✔Correct Answer-coordination and balance
Wernicke's area ✔Correct Answer-Speech comprehension
occipital lobe ✔Correct Answer-Primary visual area
parietal lobe ✔Correct Answer-Keeps us alert to what is going on around us
Sensory Cortex ✔Correct Answer-Pain, heat, and other sensations
motor cortex ✔Correct Answer-Movement
Hippocampus ✔Correct Answer-Involved in both memory and anxiety
Nucleus accumbens ✔Correct Answer-Involved in the reward process.
Thalamus ✔Correct Answer-Involved in sensory organ and motor command processing
Striatum ✔Correct Answer-Involved in complex motor actions, also links cognition to motor actions
Limbic System ✔Correct Answer-This includes circuits that are associated with pleasure and
reward, emotion and learning
Basal ganglia ✔Correct Answer-A group of structures involved in voluntary motor movements
Amygdala ✔Correct Answer-Involved in emotional regulation and perception of odors
Corpus callosum ✔Correct Answer-Controls the communication between the two brain
hemispheres
white matter ✔Correct Answer-Contains nerve fibers that connect neurons from different regions
into functional circuits