A nurse at an emergency department is caring for a child who was admitted with cystic fibrosis. The child's parent is given the following laboratory results: sodium 128 mg/dL (136 to 145 mEq/dL), blood glucose 268 g/dL (70 to 100 g/dL), potassium 4.2 mq/L (3.4 to 4.7 mEq/L), and oxygen saturation 88% on 2 L/min via nasal canula (95% to 100% ) . The parent ask how the values relate to cystic fibrosis. Which of the following statements by the nurse is accurate?

"Oxygen saturation levels elevate due to scaring of lung tissue and impairment of gas exchange."

"The condition impairs the function of the intestines, therefore affecting blood glucose levels."

"The condition produces mucus in the lungs, affecting potassium levels."

"The condition affects the movement of sodium and water, lowering sodium levels."

Answer and Explanation

The Correct Answer is D

A. Oxygen saturation levels typically decrease, not elevate, in cystic fibrosis due to scarring and impairment of lung function, leading to difficulty with gas exchange.

B. Cystic fibrosis primarily affects the lungs and digestive system but does not directly impact blood glucose levels unless diabetes develops as a complication.

C. Cystic fibrosis affects mucus production in the lungs, but potassium levels are not typically affected in the way described. Potassium imbalance would be more related to renal function or other factors.

D. Cystic fibrosis affects the movement of sodium and water across cell membranes, leading to thickened mucus and an increased risk of electrolyte imbalances, such as low sodium levels (hyponatremia).

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Correct Answer is B

Explanation

A. Unintelligible speech is common at 18 months and typically resolves with age. However, a hearing screening may still be appropriate to rule out any issues.

B. By 6 months of age, infants should begin making babbling sounds. The absence of babbling at 8 months suggests a potential hearing impairment and warrants further evaluation.

C. Preferring to play with others is typical behavior for a 4-year-old and does not indicate a hearing impairment.

D. An exaggerated startle response at 3 months is a normal developmental milestone and does not indicate a hearing problem.

A. "Oxygen saturation levels elevate due to scaring of lung tissue and impairment of gas exchange." B. "The condition impairs the function of the intestines, therefore affecting blood glucose levels." C. "The condition produces mucus in the lungs, affecting potassium levels." D. "The condition affects the movement of sodium and water, lowering sodium levels."

Correct Answer is D

Explanation

A. Oxygen saturation levels typically decrease, not elevate, in cystic fibrosis due to scarring and impairment of lung function, leading to difficulty with gas exchange.

B. Cystic fibrosis primarily affects the lungs and digestive system but does not directly impact blood glucose levels unless diabetes develops as a complication.

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Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A nurse is performing hearing screenings for children at a community health fair. Which of the following children should the nurse refer to a provider for a more extensive hearing Evaluation?

Correct Answer is B

Explanation

Correct Answer is D

Explanation

A nurse is gathering data on a 10-month-old infant. Which of the following findings should be reported to the provider?

A nurse is assessing an adolescent who experienced blunt trauma to the abdomen. Which of the following findings is the nurse's priority?

A nurse is caring for a group of adolescents. Which of the following findings should be reported to the provider immediately?

A nurse is assessing a child who has nephrotic syndrome. Which of the following findings should the nurse expect?

Which intervention would the nurse include when providing atraumatic care?

A nurse is caring for an infant who has congenital heart disease. Which of the following actions should the nurse plan to take? Please select 3 actions. (Select all that apply.)

A nurse is teaching a newly hired nurse about the management of care for the terminal illness of a child. Which of the following statements by the newly hired nurse indicates an understanding of the teaching?

A nurse is providing discharge teaching to the parents of a child who has a new diagnosis of diabetes mellitus. Which of the following statements by the parents indicates an understanding of the teaching?