A nurse is reinforcing teaching with a newly licensed nurse about coup and contrecoup injuries. Which of the following statements by the newly licensed nurse indicates an understanding of the teaching?
A contrecoup injury is not considered a "true" injury, and a coup injury can be more devastating.
The coup injury is the primary focal injury, and the contrecoup injury occurs on the opposite side of the brain.
The coup injury occurs secondary to the contrecoup injury but does not affect blood supply to the brain.
Contrecoup injuries are less severe and easier to heal from over time.
The Correct Answer is B
A. A contrecoup injury is a true injury and can be significant; stating it is not considered "true" is incorrect and indicates a lack of understanding.
B. This statement accurately describes coup and contrecoup injuries, where a coup injury occurs at the site of impact and a contrecoup injury occurs on the opposite side of the brain.
C. This statement is incorrect because a coup injury does not occur secondary to the contrecoup; they can happen simultaneously during trauma.
D. Contrecoup injuries can be just as severe as coup injuries, and the healing process varies; stating they are easier to heal from is misleading and reflects a misunderstanding.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. While travel can expose individuals to various pathogens, Guillain-Barré syndrome (GBS) is more commonly linked to recent infections rather than overseas travel.
B. GBS is often preceded by an acute viral or bacterial infection, particularly an upper respiratory or gastrointestinal infection. This makes it essential for the nurse to inquire about a recent upper respiratory infection.
C. Taking multivitamins does not have a direct connection to the development of GBS.
D. While some vaccines are associated with GBS, the MMR vaccine is not typically a cause of concern in this context.
Correct Answer is B
Explanation
A. The ascending tracts transmit sensory information to the brain, but they do not process the information; that function is performed in the brain itself.
B. This statement accurately reflects the function of the descending tracts, which carry motor signals from the CNS to the muscles, facilitating voluntary movement.
C. Sensory receptors are located in various tissues throughout the body, including the skin and muscles, but not exclusively in the muscles.
D. Motor neurons are located in the spinal cord and peripheral nervous system, not in the dermal layer of the skin, where sensory receptors reside.
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