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. .
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["B","C","D"]
Explanation
Choice A rationale
Hypertension is not a characteristic finding of hyperemesis gravidarum, which primarily affects fluid balance and nutritional status.
Choice B rationale
Dry mucous membranes are a sign of dehydration, commonly associated with hyperemesis gravidarum due to excessive vomiting.
Choice C rationale
Tachycardia can result from dehydration and electrolyte imbalances seen in hyperemesis gravidarum.
Choice D rationale
Poor skin turgor indicates dehydration, a common symptom of hyperemesis gravidarum.
Choice E rationale
Polyuria is not typical in hyperemesis gravidarum; the condition usually leads to dehydration, reducing urine output.
Correct Answer is ["A","B","C"]
Explanation
Choice A rationale
Irregular spotting is common after the placement of an IUD as the body adjusts to the device. This is a normal side effect and typically resolves within a few months.
Choice B rationale
Avoiding tampons initially after IUD placement is advised to prevent displacement or infection. Once the IUD is properly positioned and the risk of infection decreases, tampons can generally be used.
Choice C rationale
Informed consent is required prior to IUD placement to ensure the client understands the procedure, potential risks, and benefits, ensuring an informed decision.
Choice D rationale
IUDs typically need to be replaced every 3 to 10 years, depending on the type. Replacing an IUD every 2 years is not accurate and does not align with standard medical recommendations.
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