The student nurse is collecting data on a child diagnosed with cystic fibrosis and notes the child has a barrel chest and clubbing of the fingers. In explaining this manifestation of the disease, the staff nurse explains the cause of this symptom to be:

high sodium chloride concentration in the sweat.

chronic lack of oxygen.

decreased respiratory capacity.

impaired digestive activity.

Answer and Explanation

The Correct Answer is B

A. While cystic fibrosis is characterized by a high concentration of sodium chloride in sweat due to defective chloride channels, this is not the cause of the barrel chest and clubbing of the fingers.

B. The barrel chest and clubbing of the fingers are often seen in children with cystic fibrosis due to chronic hypoxia (lack of oxygen). Chronic lung infections, airway obstruction, and respiratory insufficiency associated with cystic fibrosis lead to prolonged low oxygen levels, which can result in these physical changes.

C. Decreased respiratory capacity, often due to the chronic respiratory issues associated with cystic fibrosis, can result in a barrel chest (increased chest diameter due to air trapping) and clubbing of the fingers (a sign of chronic hypoxia).

D. Decreased respiratory capacity (due to thick mucus and airway obstruction) does contribute to chronic respiratory issues in cystic fibrosis, but the direct cause of the barrel chest and clubbing is the chronic lack of oxygen (hypoxia) rather than decreased capacity alone. The changes in the chest and fingers are a result of prolonged oxygen deprivation.

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Correct Answer is B

Explanation

A. Teaching the child to take long, slow breaths:

While teaching slow breathing techniques can be helpful in managing anxiety and promoting a sense of calm, it may not directly address the underlying airway inflammation and bronchodilation needed in acute laryngotracheobronchitis.

B. Assisting with racemic epinephrine nebulizer therapy:

Racemic epinephrine is a medication that contains epinephrine, a bronchodilator. Nebulizer therapy with racemic epinephrine helps reduce airway inflammation, allowing for bronchodilation and improved breathing. This is a common intervention for managing acute respiratory distress in conditions like croup.

C. Administering an oral analgesic:

Oral analgesics, such as pain medications, can provide relief from discomfort or pain, but they do not directly address the bronchodilation needed for conditions like acute laryngotracheobronchitis.

D. Administering a corticosteroid:

Corticosteroids have anti-inflammatory properties and can help reduce swelling and inflammation in the airways. By doing so, they contribute to bronchodilation and improved breathing in conditions like croup. Corticosteroids are often used as part of the treatment plan for acute laryngotracheobronchitis.

A. “My child has a vocabulary of approximately 20 words.” B. “My child is still thumb sucking.” C. “My child seems to be quite wary of strangers.” D. “My child is able to stand but is not yet taking steps independently.”

Correct Answer is D

Explanation

A. “My child has a vocabulary of approximately 20 words.”

This statement indicates language development, and an 18-month-old with a vocabulary of approximately 20 words is within the expected range. It's a positive indicator of language acquisition.

B. “My child is still thumb sucking.”

Thumb sucking is a common self-soothing behavior in infants and toddlers. While it's a normal behavior, it typically decreases with age. Thumb sucking alone may not necessarily be a cause for concern unless it persists significantly and interferes with other aspects of development.

C. “My child seems to be quite wary of strangers.”

Stranger anxiety is a normal developmental stage, and many children exhibit wariness or fear of unfamiliar people around the age of 18 months. It is considered a typical response and not necessarily indicative of developmental delay.

D. “My child is able to stand but is not yet taking steps independently.”

At 18 months, most children are expected to be walking independently. The inability to take independent steps might be a concern for gross motor skill development. While some variation is normal, a delay in achieving this milestone might prompt further evaluation to rule out any underlying developmental issues.

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The student nurse is collecting data on a child diagnosed with cystic fibrosis and notes the child has a barrel chest and clubbing of the fingers. In explaining this manifestation of the disease, the staff nurse explains the cause of this symptom to be:

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

The nurse is caring for a toddler with acute laryngotracheobronchitis. Which action aids in bronchodilation to improve breathing for this child?

Correct Answer is B

Explanation

Which statement by the mother of an 18-month-old would lead the nurse to believe that the child should be referred for further evaluation for developmental delay?

Correct Answer is D

Explanation

A 6-month-old boy weighed 8 lbs. 2 oz. at birth. Understanding developmental milestones, what should the nurse caring for the child calculate his current weight as?

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