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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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A rationale:
(Incorrect) The newborn with significant bruising from a face presentation is at an increased risk of elevated unconjugated bilirubin levels. Bruising can lead to the breakdown of red blood cells, increasing bilirubin production.
Choice B rationale:
(Incorrect) The premature newborn is at a higher risk of elevated unconjugated bilirubin levels. Premature infants often have an underdeveloped liver, which can lead to reduced bilirubin processing and clearance.
Choice C rationale:
(Correct) The baby born at 41 weeks' gestation is at the lowest risk for elevated unconjugated bilirubin levels. By this stage, the baby's liver is more mature, allowing for efficient processing and clearance of bilirubin.
Choice D rationale:
(Incorrect) The newborn with O+ blood type, born to a mother with O- blood type, is at an increased risk of elevated unconjugated bilirubin levels if the baby's blood type is Rh-positive and the mother's is Rh-negative. This situation can lead to Rh incompatibility and hemolytic disease of the newborn, causing higher bilirubin levels.
Correct Answer is ["A","B","D"]
Explanation
Choice A rationale:
The normal temperature range for a newborn measured axillary (armpit) is 97.7-99.3°F (36.5- 37.4°C). This is a crucial vital sign to monitor, as any significant deviation from this range could indicate an underlying issue requiring further evaluation.
Choice B rationale:
The newborn's heart rate varies with their activity level. While asleep, it is around 100 bpm, and when awake, it is 120-160 bpm. During crying or agitation, it can go up to 180 bpm.
Monitoring the heart rate is essential, as any abnormal values might indicate cardiac or other health problems.
Choice D rationale:
The normal respiratory rate for a newborn is 30-60 breaths per minute. Respiratory rate is a critical parameter to monitor as rapid or slow breathing could be a sign of respiratory distress or other respiratory conditions.
Choice C rationale:
Blood pressure is not routinely assessed in newborns, as it is challenging to obtain accurate readings due to their small size and physiology. Instead, other vital signs are relied upon for assessment.
Choice E rationale:
The head circumference is not included in the normal vital sign ranges. However, monitoring head circumference is crucial during infancy to track brain growth and development.
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