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A nurse is assessing a young child and suspects coarctation of the aorta based on which finding?

A.

Diastolic murmur.

B.

Hypotension.

C.

Excessive crying.

D.

Unequal upper and lower extremity pulses.

Answer and Explanation

The Correct Answer is D

Choice A rationale

 

A diastolic murmur is not a typical finding in coarctation of the aorta. This condition is more commonly associated with systolic murmurs.

 

Choice B rationale

 

Hypotension is not a common finding in coarctation of the aorta. In fact, hypertension in the upper extremities is more typical due to the narrowing of the aorta.

 

Choice C rationale

 

Excessive crying is not a specific indicator of coarctation of the aorta. It can be a symptom of many different conditions and is not diagnostic.

 

Choice D rationale

 

Unequal upper and lower extremity pulses are a key finding in coarctation of the aorta. The narrowing of the aorta causes reduced blood flow to the lower extremities, resulting in weaker pulses compared to the upper extremities.


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View Related questions

Correct Answer is D

Explanation

Choice A rationale

A sputum culture can help identify respiratory infections but is not definitive for diagnosing cystic fibrosis.

Choice B rationale

Stool fat content analysis can indicate malabsorption issues but is not specific to cystic fibrosis.

Choice C rationale

Pulmonary function tests assess lung function but do not confirm a diagnosis of cystic fibrosis.

Choice D rationale

The sweat chloride test is the gold standard for diagnosing cystic fibrosis. It measures the concentration of chloride in sweat, which is elevated in individuals with cystic fibrosis due to defective chloride transport in sweat glands.

Correct Answer is D

Explanation

Choice A rationale

Polyuria, or excessive urination, is typically associated with hyperglycemia rather than hypoglycemia. In the context of diabetes, polyuria occurs when high blood glucose levels lead to increased urine production as the body attempts to excrete excess glucose. Since the adolescent’s blood glucose level is 55 mg/dL, which indicates hypoglycemia, polyuria is not an expected finding.

Choice B rationale

Dry, flushed skin is a common symptom of hyperglycemia, not hypoglycemia. When blood glucose levels are high, the body becomes dehydrated, leading to dry skin and a flushed appearance. In contrast, hypoglycemia often presents with symptoms such as sweating, pallor, and shakiness due to the body’s response to low blood glucose levels.

Choice C rationale

Deep, rapid respirations, also known as Kussmaul respirations, are typically associated with diabetic ketoacidosis (DKA), a complication of hyperglycemia. DKA occurs when the body produces high levels of ketones due to insufficient insulin. Since the adolescent’s blood glucose level is 55 mg/dL, which indicates hypoglycemia, deep, rapid respirations are not an expected finding.

Choice D rationale

Tachycardia, or an increased heart rate, is a common symptom of hypoglycemia. When blood glucose levels drop, the body releases catecholamines (such as adrenaline) to raise blood glucose levels. This response leads to symptoms such as shakiness, sweating, and tachycardia. Therefore, tachycardia is an expected finding in an adolescent with a blood glucose level of 55 mg/dL.

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