A nurse is providing teaching to the parents of an infant who is to undergo pilocarpine iontophoresis testing for cystic fibrosis.
Which of the following statements should the nurse include in the teaching?
"A nurse will insert an IV prior to the test.”
"We will measure the amount of protein in your baby's urine over a 24 hour period.”
"The test will measure the amount of chloride in your baby's sweat.”
"Your baby will need to fast for 8 hours prior to the test.”
The Correct Answer is C
Pilocarpine iontophoresis is a test used to diagnose cystic fibrosis by measuring the amount of chloride in a person’s sweat.
Choice A is wrong because an IV is not necessary for this test.
Choice B is wrong because the test measures chloride in sweat, not protein in urine.
Choice D is wrong because fasting is not required for this test.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A 24-gauge catheter is the smallest-gauge catheter and is appropriate for administering IV fluids and medications to an infant.

Choice B is wrong because an opaque dressing would prevent the nurse from visualizing the insertion site.
Choice C is wrong because starting an IV in an infant’s foot can be painful and difficult to secure.
Choice D is wrong because IV sites should be changed every 72-96 hours or according to facility policy.
Correct Answer is A
Explanation
The nurse should position the opening of the bag over the urethra and the anus.
Choice B is wrong because placing a snug-fitting diaper over the drainage bag is not necessary.
Choice C is wrong because there is no need to apply lidocaine gel to the perineum before attaching the bag.
Choice D is wrong because there is no need to stretch the perineum taut when applying the bag.
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