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."
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).
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. Providing a detailed description of how burns occurred may suggest a plausible explanation, but it does not necessarily indicate abuse.
B. Denying discomfort despite the presence of burns may suggest emotional detachment or an attempt to conceal the severity of the injuries, which can be indicative of abuse.
C. Describing strong relationships with peers is a typical and healthy sign of social development and does not indicate abuse.
D. Reluctance to leave home may suggest anxiety or attachment to family, but it is not necessarily indicative of abuse.
Correct Answer is C
Explanation
A. Breastfeeding or formula feeding should be continued until 12 months, as breast milk or formula provides the necessary nutrients.
B. Whole milk should not be introduced at 10 months.
C. Whole milk should not be introduced until after the first year of life (12 months), as it lacks the appropriate balance of nutrients for infants and may cause digestive issues or iron deficiency before then.
D. 8 months is too early for whole milk; breast milk or formula is still the best option until 12 months.
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