The caregiver whose newborn was newly diagnosed with phenylketonuria (PKU) has questions about the disorder. Which statement made by the nurse is correct regarding PKU?
"A urine test can check the necessary lab values."
"Severe cognitive deficits can result with untreated PKU."
"The urine has a high concentration of phenyl pyruvic acid."
"The effects of PKU are reversible."
The Correct Answer is B
A. PKU is typically diagnosed through a blood test, not a urine test. The blood test measures phenylalanine levels, which are elevated in PKU.
B. Untreated PKU can lead to severe cognitive deficits and developmental delays due to the accumulation of phenylalanine, which is toxic to the brain. Early detection and treatment can prevent these outcomes.
C. In PKU, the urine does not typically contain high levels of phenyl pyruvic acid; it is the blood levels of phenylalanine that are elevated.
D. The effects of PKU are not reversible; however, with early and consistent treatment, such as a strict low-phenylalanine diet, the symptoms can be managed effectively.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. Offering a pacifier is contraindicated after cleft lip and palate repair as it can disrupt the surgical site and interfere with healing.
B. Maintaining elbow restraints prevents the infant from touching or putting objects in their mouth, which could disrupt the surgical site and compromise healing.
C. The Trendelenburg position is not recommended as it can increase pressure on the surgical site and compromise breathing.
D. An ice collar may be used for pain relief in older children or adults but is not typically used in infants, and it may not be feasible in this population.
Correct Answer is B
Explanation
A. Mild illnesses like nasopharyngitis (a common cold) do not typically contraindicate vaccination, so there is no need to delay immunization.
B. It is essential to evaluate for allergies to vaccine components, such as gelatin or neomycin, which could contraindicate the administration of the varicella vaccine.
C. The first dose of the varicella vaccine is recommended at 12-15 months of age, not at 4 years of age, so it is appropriate to administer it during this well-check.
D. The varicella vaccine is administered subcutaneously, not intramuscularly, so this is not the correct route for administration.
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