Rationale 2025/2026 Exam Questions
and Answers | 100% Pass
How does the nurse interpret the laboratory analysis of a stool sample
containing excessive amounts of azotorrhea and steatorrhea in a child with
cystic fibrosis (CF)? The values indicate the child is
1. Not compliant with taking her vitamins.
2. Not compliant with taking her enzymes.
3. Eating too many foods high in fat.
4. Eating too many foods high in fiber. - 🧠 ANSWER ✔✔ANS 2
2. If the child were not taking enzymes, the result would be a large amount
of undigested food, azotorrhea, and steatorrhea in the stool. Pancreatic
ducts in CF patients become clogged with thick mucus that blocks the flow
of digestive enzymes from the pancreas to the duodenum. Therefore,
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,patients must take digestive enzymes with all meals and snacks to aid in
absorption of nutrients. Often, teens are noncompliant with their medication
regimen because they want to be like their peers.
TEST-TAKING HINT: The test taker needs to understand the
pathophysiology of CF and the impact it has on the gastrointestinal system.
The test taker also must be familiar with the conditions azotorrhea and
steatorrhea.
Which would the nurse explain to parents about the inheritance of cystic
fibrosis?
1. CF is an autosomal-dominant trait passed on from the child's mother.
2. CF is an autosomal-dominant trait passed on from the child's father.
3. The child of parents who are both carriers of the gene for CF has a 50%
chance of
acquiring CF.
4. The child of a mother who has CF and a father who is a carrier of the
gene for CF
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,has a 50% chance of acquiring CF. - 🧠 ANSWER ✔✔ANS 4
4. If the child is born to a parent with CF and the other parent is a carrier,
the child has a 50% chance of acquiring the disease and a 50% chance of
being a carrier of the disease. TEST-TAKING HINT: Answers 1 and 2 can
be eliminated with knowledge of the genetic inheritance of CF. CF is
inherited as an autosomal-recessive trait.
The parent of a 4-month-old with cystic fibrosis (CF) asks the nurse what
time to begin the child's first chest physiotherapy (CPT) each day. Which is
the nurse's best response?
1. "Thirty minutes before feeding the child breakfast."
2. "After deep-suctioning the child each morning."
3. "Thirty minutes after feeding the child breakfast."
4. "Only when the child has congestion or coughing." - 🧠 ANSWER ✔✔1.
CPT should be done in the morning prior to feeding to avoid the risk of the
child vomiting.
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, TEST-TAKING HINT: Answer 4 can be eliminated because of the word
"only." There are very few times in health care when an answer will be
"only." Answer 3 can be eliminated when one considers the risk of vomiting
and aspiration that may occur if percussion is performed following eating
The parent of an infant with cystic fibrosis (CF) asks the nurse how to meet
the child's increased nutritional needs. Which is the nurse's best
suggestion?
1. "You may need to increase the number of fresh fruits and vegetables
you give
your child."
2. "You may need to advance your child's diet to whole cow's milk because
it is higher
in fat than formula."
3. "You may need to change your child to a higher-calorie formula."
4. "You may need to increase your child's carbohydrate intake." - 🧠
ANSWER ✔✔3. Often infants with CF need to have a higher-calorie
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