A nurse is assisting with teaching a group of nursing students about the pathophysiology of the spinal cord. Which of the following statements by a nursing student indicates understanding?
"The ascending tract of the spinal cord processes information in the brain."
"The descending tracts of the spinal cord deliver the CNS motor information to neurons in the muscle."
"The sensory receptors are in the muscles."
"The motor neurons are in the dermal layer of skin."
The Correct Answer is B
A. The ascending tract of the spinal cord transmits sensory information to the brain, but it does not process it; processing occurs in the brain itself.
B. This statement accurately describes the function of the descending tracts, which carry motor commands from the central nervous system (CNS) to the muscles, facilitating movement.
C. Sensory receptors are located in various tissues throughout the body, including the skin, not just in the muscles.
D. Motor neurons are not found in the dermal layer; they are located in the spinal cord and the peripheral nervous system, where they innervate muscles.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. Nicardipine is a calcium channel blocker primarily used to manage blood pressure but does not directly reduce ICP.
B. Phenytoin is an anticonvulsant used to prevent seizures, which may occur after a hemorrhage, but it does not address increased ICP.
C. Dopamine is used to increase blood pressure and cardiac output but does not play a role in reducing ICP.
D. Mannitol is an osmotic diuretic that helps decrease ICP by drawing fluid from brain tissue into the bloodstream, thus relieving pressure within the skull. It is the most appropriate intervention for managing increased ICP.
Correct Answer is D
Explanation
A. Gelatin allergies are not directly related to cardiac catheterization procedures, as iodine-based contrast media is typically used.
B. A yeast allergy is unrelated to the contrast dye or materials used in the procedure.
C. Egg allergies may be relevant to some medications or vaccines, but they are not typically a concern in cardiac catheterization.
D. Shellfish allergies are important because clients with shellfish allergies may also react to iodine-based contrast dyes commonly used in cardiac catheterization procedures.
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