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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).
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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.
When describing the various neurotransmitters, which of the following would the nurse identify as the primary cholinergic neurotransmitter?
- A. Dopamine
- B. Acetylcholine
- C. Norepinephrine
- D. Serotonin
Correct Answer: B
Rationale: Acetylcholine is the primary cholinergic neurotransmitter, acting in the parasympathetic nervous system and at neuromuscular junctions. Dopamine, norepinephrine, and serotonin are monoamine neurotransmitters, not cholinergic.
Which of the following would a nursing instructor identify when describing the area of the brain involved with verbal language function, including areas for both receptive and expressive speech?
- A. Right hemisphere
- B. Parietal lobe
- C. Occipital lobe
- D. Left hemisphere
Correct Answer: D
Rationale: The left hemisphere is primarily responsible for verbal language functions, including Broca?s area (expressive speech) and Wernicke?s area (receptive speech). The right hemisphere handles nonverbal functions, the parietal lobe processes sensory information, and the occipital lobe is involved in vision.
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.
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.