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 ["A","D","E"]
Explanation
Choice A rationale
Creating an organization chart for tasks can help a child with ADHD manage their responsibilities and stay on track.
Choice D rationale
Designating an established area for study can provide structure and minimize distractions, helping a child with ADHD focus on their work.
Choice E rationale
Maintaining a consistent home schedule can provide predictability and structure, which can be beneficial for a child with ADHD5.
Choice B rationale
Nonstimulant medications can be beneficial in the treatment of ADHD. They are often used when stimulant medications are not effective or cause undesirable side effects.
Choice C rationale
While medication can be an important part of treatment for some children with ADHD, it is not always the best or only approach. Behavioral therapy and lifestyle changes are also important components of treatment.
Choice F rationale
Being diagnosed with ADHD does not automatically qualify a child for a specialized education plan. While some children with ADHD may benefit from individualized education programs (IEPs) or 504 plans, these are determined on a case-by-case basis.
Correct Answer is A
Explanation
Choice A rationale
The startle reflex, also known as the Moro reflex, is a normal response in newborns but typically disappears around 4 to 6 months of age. If a 6-month-old infant still demonstrates this reflex, it may indicate neurological issues that require further evaluation.
Choice B rationale
Playing “peek-a-boo” is a normal developmental milestone for a 6-month-old infant. It shows that the infant is starting to understand object permanence, which is the understanding that objects continue to exist even when they cannot be seen.
Choice C rationale
Doubling birth weight by 6 months is a normal growth milestone for infants. This indicates that the infant is growing and developing as expected.
Choice D rationale
Turning the head to locate sound is a normal developmental milestone for a 6-month-old infant. This shows that the infant’s hearing and neck muscles are developing appropriately.
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