A mother brings her 2-month-old to the well-baby clinic.
She mentions that when she kisses her baby, the infant’s skin tastes salty.
What standard diagnostic test should the nurse prepare the mother for to screen for cystic fibrosis (CF)?
Fecal-fat test.
Sweat-chloride test.
Pulmonary-function test.
Potassium chloride test.
The Correct Answer is B
Choice A rationale
A fecal-fat test is used to measure the body’s ability to break down and absorb fat. It is not a standard diagnostic test for cystic fibrosis (CF)6.
Choice B rationale
A sweat-chloride test is the standard diagnostic test for CF. People with CF have higher than normal levels of sodium and chloride in their sweat, which can make their skin taste salty.
Choice C rationale
A pulmonary-function test measures how well the lungs work and can be used to monitor lung disease in people with CF. However, it is not a standard diagnostic test for CF, especially in a 2- month-old infant.
Choice D rationale
A potassium chloride test is not a standard diagnostic test for CF6.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A rationale
Proposing food even if the child shows no interest might not be effective. Children with autism spectrum disorder often have specific food preferences and may resist trying new foods.
Choice B rationale
While integrating play activities during meal times can make the experience more enjoyable for some children, it might be distracting for a child with autism spectrum disorder. These children often benefit from a calm, structured environment.
Choice C rationale
Establishing regular meal times can provide a sense of structure and predictability, which can be comforting for children with autism spectrum disorder. Regular meal times can also help ensure that the child is receiving adequate nutrition.
Choice D rationale
Permitting a variety of food options can be beneficial for some children, but children with autism spectrum disorder often have specific food preferences and may resist trying new foods.
Correct Answer is C
Explanation
Choice A rationale
Recognizing most letters and numbers is a skill that typically develops later in childhood, not at 3 years old.
Choice B rationale
Using 1-word sentences is a skill that is typically mastered by 2 years old. A 3-year-old child is usually able to speak in longer sentences.
Choice C rationale
Speaking in simple sentences with four or more words is a normal developmental milestone for a 3-year-old child.
Choice D rationale
Using gestures with 1 to 2-word sentences is a skill that is typically mastered by 2 years old. A 3-year-old child is usually able to speak in longer sentences.
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