A neonate born to a family with a two children who have cystic fibrosis has a sweat test performed shortly after birth.The results are within normal limits.Which interpretation by the nurse is correct?
A)Genetic testing is the only reliable method to diagnose cystic fibrosis.
B)Results are inconclusive unless fecal analysis for trypsin also is negative.
C)The test should be repeated when the neonate is older.
D)This child does not have cystic fibrosis.

Question

Quizplus · Accepted Answer

The sweat test, which measures the concentration of chloride in the sweat, is a key diagnostic test for cystic fibrosis. However, in neonates, the results can be unreliable because their sweat glands may not produce enough sweat for accurate analysis. Therefore, it is often recommended to repeat the test when the child is older, usually by 2 months of age, for more reliable results.

A Neonate Born to a Family with a Two Children