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.

Answer and Explanation

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.

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Correct Answer is A

Explanation

A. A blood pressure of 80/40 mm/Hg indicates hypotension, which is a contraindication for administering furosemide. The medication can further lower blood pressure and increase the risk of adverse effects.
B. An oxygen saturation of 95% is within normal limits and does not indicate a need to withhold furosemide.
C. A serum sodium level of 140 mEq/L is normal and would not warrant withholding the medication.
D. A serum potassium level of 4.8 mEq/L is also normal and safe for furosemide administration, as the medication may cause potassium loss but does not require withholding if the level is within range.

A. Report of dizziness B. Temperature of 39° C (102.2° F) C. Hypoglycemia D. History of cigarette smoking

Correct Answer is A

Explanation

A. A heart rate of 56/min indicates bradycardia, which can reduce cardiac output and lead to dizziness due to decreased cerebral perfusion.
B. A high temperature is not directly associated with bradycardia; fever typically causes tachycardia.
C. Hypoglycemia does not have a direct relationship with bradycardia; it is more commonly associated with symptoms like sweating, confusion, and tremors.
D. Cigarette smoking typically contributes to conditions like tachycardia and vascular constriction, not bradycardia.

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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?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

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Correct Answer is A

Explanation

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Correct Answer is A

Explanation

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