A nurse is collecting a blood phenylketonuria (PKU) test for a newborn prior to discharge.The newborn's guardian asks the nurse what a positive PKU test would mean.
Which of the following statements should the nurse make?
A positive finding indicates the inability to metabolize galactose.
A positive finding indicates the infant will have a slow metabolism.
A positive finding indicates an inability to metabolize certain amino acids.
A positive finding indicates an increased risk for neurological anomalies.
The Correct Answer is C
Choice A rationale
A positive finding for galactosemia, not PKU, indicates the inability to metabolize galactose. Galactosemia is a different metabolic disorder that requires a separate dietary intervention.
Choice B rationale
A positive PKU test does not indicate slow metabolism. Instead, it signifies the inability to metabolize phenylalanine, an amino acid.
Choice C rationale
Phenylketonuria (PKU) is a genetic disorder that leads to the inability to break down the amino acid phenylalanine. Without proper management, it can accumulate in the body and cause brain damage and other health issues.
Choice D rationale
A positive PKU test is not directly linked to an increased risk for neurological anomalies in general. The specific issue in PKU is the inability to metabolize certain amino acids, primarily phenylalanine, which can cause neurological damage if untreated. .
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A rationale
Gaining 2 pounds per week throughout the rest of pregnancy is excessive and not recommended. Normal weight gain is approximately 1 pound per week in the second and third trimesters.
Choice B rationale
Dieting during pregnancy can lead to inadequate nutrient intake for both the mother and the developing fetus. It is essential to focus on a balanced diet rather than trying to lose weight.
Choice C rationale
Meeting with a dietitian can help the client assess their nutritional needs and develop a healthy eating plan to support their pregnancy, ensuring both maternal and fetal health.
Choice D rationale
Eating an additional 700 calories per day is too high. Generally, an additional 300-500 calories per day is recommended during the second and third trimesters to support pregnancy. .
Correct Answer is D
Explanation
Choice A rationale
Transient circumoral cyanosis is common in newborns, especially when crying or feeding, and usually resolves on its own without intervention.
Choice B rationale
Transient strabismus, or the temporary crossing of the eyes, is normal in newborns due to underdeveloped eye muscles and usually resolves as the infant grows.
Choice C rationale
Caput succedaneum is the swelling of the scalp caused by pressure during delivery. It is usually benign and resolves within a few days without treatment.
Choice D rationale
Generalized petechiae, or small red or purple spots on the skin, can indicate a serious underlying condition such as a clotting disorder or infection and requires immediate medical evaluation.
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today
Report Wrong Answer on the Current Question
Do you disagree with the answer? If yes, what is your expected answer? Explain.
Kindly be descriptive with the issue you are facing.