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A nurse is developing a plan of care for a patient experiencing expressive aphasia. The nurse incorporates knowledge that the patient most likely has sustained damage to which of the following?
- A. The postcentral gyrus
- B. Broca?s area
- C. Basal ganglia
- D. The hippocampus
Correct Answer: B
Rationale: Expressive aphasia, difficulty producing speech, is associated with damage to Broca?s area in the frontal lobe. The postcentral gyrus processes sensory input, the basal ganglia regulate movement, and the hippocampus is involved in memory, none of which directly cause expressive aphasia.
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A patient has been diagnosed with memory dysfunction associated with Alzheimer?s disease. The nurse determines that damage to the patient?s brain includes deterioration of temporal lobe structures and the nerves of which of the following?
- A. Basal ganglia
- B. Limbic system
- C. Frontal lobe
- D. Hippocampus
Correct Answer: D
Rationale: Alzheimer?s disease involves memory dysfunction due to deterioration of the hippocampus (part of the limbic system in the temporal lobe) and other temporal lobe structures. The basal ganglia regulate movement, the limbic system broadly affects emotions, and the frontal lobe handles executive functions.
A nursing instructor asks a student to explain the influence of chronobiology on depression. Which of the following would the student include when responding?
- A. The exact location of genes leads to identifying the gene responsible for causing depression.
- B. A break in the corpus callosum blocks information exchange between the right and left hemispheres.
- C. Damage to the posterior areas of the parietal lobe leads to altered discriminative sensory function.
- D. Internal and external triggers can elicit biologic rhythm changes indicative of clinical depression.
Correct Answer: D
Rationale: Chronobiology studies biological rhythms, such as circadian rhythms, which influence mood disorders like depression. Internal (e.g., hormonal changes) and external (e.g., light exposure) triggers can disrupt these rhythms, contributing to depressive symptoms. The other options relate to genetics, brain connectivity, or sensory function, not chronobiology.
A nurse is reading a journal article about psychoneuroimmunology. Which information would the nurse most likely find? Select all that apply.
- A. Neurotoxin?s role in receptor site damage
- B. Hypothalamic-pituitary-thyroid axis disruption
- C. Static activity of natural killer cells in response to stress
- D. Hypothalamic damage leading to immune dysfunction
- E. Interruption in the typical circadian rhythm cycle
Correct Answer: B,D,E
Rationale: Psychoneuroimmunology studies interactions between the nervous, endocrine, and immune systems. Hypothalamic-pituitary-thyroid axis disruption (B), hypothalamic damage leading to immune dysfunction (D), and circadian rhythm interruptions (E) are relevant, as they link stress and brain function to immune responses. Neurotoxins (A) are less central, and natural killer cells are not static (C) but increase with stress.
The nurse is caring for an older adult who has experienced damage to the frontal lobe after an automobile accident. The nurse anticipates that the patient will have difficulty with which of the following?
- A. Smell
- B. Concept formation
- C. Receptive speech
- D. Hearing
Correct Answer: B
Rationale: The frontal lobe is responsible for executive functions, including concept formation, planning, and decision-making. Damage may impair these abilities. Smell is associated with the olfactory bulb, receptive speech with Wernicke?s area (temporal lobe), and hearing with the auditory cortex (temporal lobe).
A patient who is scheduled to undergo a sleep deprivation electroencephalogram (EEG) in the morning is experiencing moderate anxiety about the procedure. Based on an understanding of this test, which of the following would the nurse avoid?
- A. Explaining in depth what to expect during the upcoming procedure
- B. Administering a benzodiazepine medication prescribed for anxiety
- C. Taking a thorough history of her use of prescribed and illicit drugs
- D. Giving her a noncaffeinated beverage of her choice
Correct Answer: B
Rationale: A sleep deprivation EEG requires the patient to stay awake to provoke brain activity for diagnosis. Administering a benzodiazepine, which promotes sedation, would counteract this purpose. Explaining the procedure, taking a history, and offering a noncaffeinated beverage are appropriate and support the test?s goals.