A nurse is completing an assessment of a newborn, including obtaining blood pressure measurements at each extremity. Which of the following findings suggests coarctation of the aorta?
Low systolic blood pressure in the upper extremities and elevated systolic blood pressure in the lower extremities
Elevated systolic blood pressure in the upper extremities and elevated systolic blood pressure in the lower extremities
Low systolic blood pressure in the upper extremities and low systolic blood pressure in the lower extremities
Elevated systolic blood pressure in the upper extremities and low systolic blood pressure in the lower extremities
The Correct Answer is D
A. Low systolic blood pressure in the upper extremities and elevated systolic blood pressure in the lower extremities. – Incorrect. Coarctation of the aorta causes the opposite finding.
B. Elevated systolic blood pressure in the upper extremities and elevated systolic blood pressure in the lower extremities. – Incorrect. Blood pressure in the lower extremities is reduced due to decreased blood flow.
C. Low systolic blood pressure in the upper extremities and low systolic blood pressure in the lower extremities. – Incorrect. Coarctation of the aorta leads to hypertension in the upper body due to increased resistance.
D. Elevated systolic blood pressure in the upper extremities and low systolic blood pressure in the lower extremities. – Correct. Coarctation of the aorta causes high BP in the arms and low BP in the legs due to obstructed blood flow past the narrowing.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. "Use lotion or powder inside the cast to prevent itching." – Incorrect. Lotions and powders can increase moisture, leading to skin irritation or infection.
B. "Ensure the cast remains dry and clean at all times." – Correct. Moisture can weaken the cast and cause skin breakdown.
C. "Massage the baby’s foot to improve circulation while the cast is on." – Incorrect. Massage is not recommended as it may interfere with alignment.
D. "Remove the cast daily to allow the baby’s skin to breathe." – Incorrect. The cast must remain on continuously and is only removed by a healthcare provider.
Correct Answer is D
Explanation
A. Treat bacterial infections – Incorrect. N-acetylcysteine is not an antibiotic.
B. Promote coughing and clear secretions – Incorrect. This describes its use in cystic fibrosis as a mucolytic, not in acetaminophen toxicity.
C. Reduce pain and fever – Incorrect. Acetaminophen, not N-acetylcysteine, is used for pain and fever.
D. Prevent liver damage – Correct. N-acetylcysteine replenishes glutathione stores, which helps detoxify acetaminophen metabolites that cause hepatotoxicity.
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