A mother brings her 2-month-old to the well-baby clinic. She states that when she kisses her baby, the infant's skin tastes salty.
The nurse should prepare the mother for what standard diagnostic test to screen for cystic fibrosis (CF)?
Sweat-chloride test.
Faecal-fat test.
Pulmonary-function test.
Potassium chloride test.
The Correct Answer is A
The nurse should prepare the mother for a sweat-chloride test to screen for cystic fibrosis (CF). A sweat- chloride test measures the amount of chloride in the sweat and is used to diagnose CF. CF is a genetic disorder that can cause the body to produce thick, sticky mucus that can clog the lungs and pancreas. One of the symptoms of CF is salty-tasting skin due to an increased amount of salt in the sweat. The other options (B, C, and D) are not standard diagnostic tests for screening for CF.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Infants with congenital heart defects may have difficulty with feeding due to increased effort required to breathe and feed at the same time. This can lead to poor weight gain and dehydration. Thus, it is important for the nurse to report any signs of poor feeding or oral intake to the healthcare provider. While audible heart murmur (choice A)and a high heart rate (choice B)are expected findings in infants with congenital heart defects, they do not necessarily indicate a need for immediate intervention. Weight gain of 2.2 lbs. (1 kg) in the last 48 hours (choice D)may actually be a positive finding in an infant with a congenital heart defect, but it is not as important to report as poor oral intake and suckling effort.
Correct Answer is A
Explanation
The nurse should prepare the mother for a sweat-chloride test to screen for cystic fibrosis (CF). A sweat- chloride test measures the amount of chloride in the sweat and is used to diagnose CF. CF is a genetic disorder that can cause the body to produce thick, sticky mucus that can clog the lungs and pancreas. One of the symptoms of CF is salty-tasting skin due to an increased amount of salt in the sweat. The other options (B, C, and D) are not standard diagnostic tests for screening for CF.
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