A nurse is reinforcing teaching about phenylketonuria (PKU) testing with the parent of a newborn. Which of the following statements by the parent indicates a need for further teaching?
"My baby will be placed under special lights if the test is elevated.".
"My baby must take formula or breast milk before the test is done.".
"This test checks for a genetic disorder that can be corrected by diet.".
"Sometimes the test is repeated in the doctor's office at the 2-week check-up.".
The Correct Answer is A
"My baby will be placed under special lights if the test is elevated.”.
Choice A rationale:

This statement indicates a need for further teaching. Phenylketonuria (PKU) is a metabolic disorder that leads to the accumulation of phenylalanine in the body. If the PKU test is elevated, it means that the baby has high levels of phenylalanine, and immediate dietary intervention is required. The parent's statement about special lights suggests a confusion with jaundice treatment, which is not related to PKU.
Choice B rationale:
This statement is accurate. Before the PKU test is done, the baby needs to consume formula or breast milk to ensure accurate test results.
Choice C rationale:
This statement is also accurate. PKU is a genetic disorder that can be managed with a special diet low in phenylalanine. By adhering to the prescribed diet, the harmful effects of PKU can be minimized.
Choice D rationale:
This statement is accurate. It is common for the PKU test to be repeated at the 2-week check- up to confirm the initial results and ensure early detection and management of PKU if present.
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Related Questions
Correct Answer is D
Explanation
A. Back to sleep: While placing babies on their backs to sleep is essential for reducing the risk of sudden infant death syndrome (SIDS), it does not prevent flat spots. Instead, tummy time while the baby is awake helps balance the time spent on their back.
B. Take the baby for walks: Taking a baby for walks is beneficial for overall development and stimulation but does not directly prevent flat spots on the head.
C. Keep them awake most of the day: This is not a safe or recommended practice. Babies need sufficient sleep for proper growth and development.
D. Tummy time helps prevent flat spots by reducing the amount of time the baby spends lying on their back. It also strengthens neck, shoulder, and arm muscles, encouraging the baby to move their head more freely and develop motor skills.
Correct Answer is D
Explanation
Choice A rationale:
"He is just cold”. is not the correct choice. While newborns can have cold hands and feet due to their immature thermoregulation, it would not explain persistent blue hands.
Choice B rationale:
"He may have been born with a heart problem”. is not the correct choice as it suggests a congenital heart defect. While cyanosis (bluish discoloration) can be associated with some heart problems, the hands alone being blue is less likely to be solely related to a heart issue.
Choice C rationale:
"The hands are always blue in a newborn”. is not the correct choice. While newborns may have bluish extremities (acrocyanosis) during the first few days after birth due to their developing circulatory system, persistent blue hands beyond this period would require further assessment.
Choice D rationale:
The correct choice is that "The circulation in his hands is not fully developed.”. Newborns have a developing circulatory system, and sometimes, their peripheral circulation takes some time to mature, leading to transient blue hands. However, if the blue color persists or worsens, it's essential to evaluate for any underlying issues.
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