Nokea
Like other systems in the body, the nervous system is composed of organs, principally the brain, spinal cord, nerves, and _______.
- A. ganglia
- B. axon
- C. neurons
- D. dura mater
Correct Answer: A
Rationale: The nervous system is composed of several key organs, including the brain, spinal cord, nerves, and ganglia. Ganglia are clusters of nerve cell bodies located outside the central nervous system and play a role in processing and transmitting nerve signals. Axons and neurons are components of nerves, while the dura mater is a protective membrane surrounding the brain and spinal cord. Ganglia are the correct answer as they are distinct organs within the nervous system.
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Mr. Sands continues to be quiet and withdrawn several days after admission. Besides Raynaud phenomenon, he has generalized telangiectasis. He seldom initiates conversation, and although up ad lib, he rarely leaves his room. Which one of the following goals would be most important to develop in his nursing care plan?
- A. Provide for solitude and rest
- B. Protect from temperature extremes
- C. Enhance self-concept
- D. Move to a four-bed ward
Correct Answer: C
Rationale: Enhancing self-concept can improve social interaction and emotional well-being.
What important information should you provide to a post-operative CTS patient for discharge?
- A. The surgical procedure is a cure for CTS.
- B. Hand movements will be restricted for 4€”6 weeks after surgery.
- C. Frequent pain medication dosages will no longer be necessary.
- D. Notify the physician immediately for any pain or discomfort.
Correct Answer: B
Rationale: Restriction of hand movements is necessary for proper healing.
The brain's ability to change in response to experience or damage is called:
- A. lateralization
- B. lesioning
- C. neuroplasticity
- D. functionality
Correct Answer: C
Rationale: Neuroplasticity refers to the brain's ability to reorganize itself by forming new neural connections in response to learning, experience, or injury. This adaptability allows the brain to compensate for damage and recover lost functions. Neuroplasticity is the basis for learning and memory and plays a crucial role in rehabilitation after brain injury. It highlights the brain's remarkable capacity for change and adaptation.
Why does a nurse position a patient with an above-the-knee amputation with a delayed prosthetic fitting prone several times a day?
- A. To prevent flexion contractures
- B. To assess the posterior skin flap
- C. To reduce edema in the residual limb
- D. To relieve pressure on the incision site
Correct Answer: A
Rationale: Prone positioning prevents contractures.
Which nerve projects to the hypothalamus to indicate the level of light stimuli in the retina?
- A. glossopharyngeal
- B. oculomotor
- C. optic
- D. vagus
Correct Answer: C
Rationale: The correct answer is C: optic nerve. The optic nerve carries visual information from the retina to the brain, including the hypothalamus. Light stimuli levels are detected by the retina and transmitted via the optic nerve to the hypothalamus for regulating various physiological processes.
A: glossopharyngeal - This nerve is responsible for taste and some motor functions in the throat, not related to light stimuli detection in the retina.
B: oculomotor - This nerve controls eye movements, not directly involved in transmitting light stimuli levels to the hypothalamus.
D: vagus - This nerve is responsible for parasympathetic functions in the body, not related to processing light stimuli information in the retina.