NEWLY UPDATED NR 546 MIDTERM EXAM 2023-2024 WITH ANSWERS thalamus - -answer-involved in sensory organ and motor command processing striatum - -answer-involved in complex motor actions, also links cognition to motor actions limbic system - -answer-includes circuits that are associated with pleasure and reward basal ganglia - -answer-group of structures involved in voluntary motor movements amygdala - -answer-involved in emotional regulation and perception of odors corpus callosum - -answer-controls the communication between the two brain hemispheres white matter - -answer-contains nerve fibers that connect neurons from different regions into functional circuits grey matter - -answer-contains nerve cells and dendrites brain tissue - -answer-made up of grey matter and white matter dorsal striatum - -answer-involved in complex motor actions and linkage of cognition to motor actions -main input area for basal ganglia *activated when anticipating or engaging in pleasure The field of epigenetics is rapidly growing and can help explain how gene expression is: - -answer-influenced by environmental factors and how epigenetics contributes to the manifestation of mental illness How does epigenetics impact a person's mental health? - - answer-internal or external factors activate portions of the genome that result in the manifestation of mental health symptoms -activation is often a result of a stressful event, which, when combined with the genetic risk, results in the disease -genes being on or off -occurrence of symptoms may be the result of inheritance of an abnormal gene or of normal genes being "on" when they should be "off." What should the PMHNP consider when prescribing chemical restraints? - -answer--allergy status -prior med hx for adverse drug reactions r/t the meds ordered in the chemical restraint -state regulations regarding chemical restrains must be reviewed Are the PMHNP and other staff liable if the client has an allergic reaction or adverse side effects to the drugs used for chemical restraint? - -answer-No. The client has been court-ordered to take the prescribed medications and the standing order for chemical restraints is approved. The PMHNP and other staff are not liable if the patient has an allergic reaction or adverse side effects. How does reviewing the genetic makeup of a client help guide the PMHNP in selecting medication for clients? - - answer--Genetic testing can assist by providing more information on how clients may respond to certain psychotropic medications -provides information on how a client may break down and metabolize medications based on the cytochrome P450 system. Tanrıkulu and Erbaş (2020) investigated identical twins to determine the presence of an inherited link for schizophrenia and why one twin may develop schizophrenia when the other does not. When two people have 100% identical DNA, why don't both persons develop the exact illnesses? Studies of identical Danish twins found that if one twin had schizophrenia, the other twin had a 50% lifetime risk of developing schizophrenia (Lemvigh et al., 2020). Why is there only half the risk? - -answer-Both environmental and psychosocial stressors can impact mental health. Although twins may have identical genes, their gene expression may be different. 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. central sulcus - -answer-separates the frontal lobe from the parietal lobe