A parent brings a 2-week-old infant to a clinic for a phenylketonuria rescreening blood test. The test indicates a serum phenylalanine level of 1 mg/dL (60.5 mcmol/L). The nurse reviews this result and makes which interpretation?
It is inconclusive
it is negative
it requires rescreening at age 6 weeks.
It is positive
The Correct Answer is B
A. It is inconclusive
Explanation: A serum phenylalanine level within the normal range is considered conclusive in ruling out phenylketonuria. Inconclusive results typically occur when there are issues with the sample or testing process.
B. It is negative
Explanation:
A serum phenylalanine level of 1 mg/dL (60.5 mcmol/L) in a 2-week-old infant is within the normal range. In the context of phenylketonuria (PKU) screening, a "negative" result means that the phenylalanine levels are within the expected range, and there is no evidence of phenylketonuria.
C. It requires rescreening at age 6 weeks.
Explanation: If the initial screening result is within the normal range, rescreening at age 6 weeks may not be necessary for phenylketonuria. The timing and need for rescreening may vary based on local protocols and individual patient factors.
D. It is positive
Explanation: A positive result for phenylketonuria would indicate that the serum phenylalanine levels are elevated, suggesting a potential diagnosis of PKU. In this case, the result is negative, meaning there is no evidence of PKU.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. "Carry a water bottle with me because I drink a lot of water."
Explanation: Staying hydrated is crucial, especially for individuals with paralysis who may be prone to urinary issues. Carrying a water bottle is a good practice to maintain adequate hydration.
B. "Use a suppository every night to have a bowel movement."
Explanation: Using a suppository for regular bowel movements is a positive self-care behavior. It helps manage bowel care, which is important for individuals with paralysis.
C. "I do wheelchair exercises while watching TV."
Explanation: Engaging in wheelchair exercises to maintain mobility is a positive self-care behavior. It helps prevent complications related to being sedentary, such as muscle atrophy.
D. "I only need to catheterize myself twice every day."
Explanation: This statement may indicate a need for further teaching. Individuals with paralysis, especially due to conditions like spina bifida, often have neurogenic bladder dysfunction. They typically require more frequent catheterization, potentially every 4-6 hours, to ensure adequate bladder emptying and reduce the risk of complications like urinary tract infections (UTIs) or bladder infections.
Correct Answer is D
Explanation
A. Valley fever
Explanation: Valley fever is a respiratory infection caused by inhaling spores of the Coccidioides fungus. It is not related to tinea pedis.
B. Shingles
Explanation: Shingles is a painful rash caused by the varicella-zoster virus. It is not related to tinea pedis.
C. Fever blister
Explanation: A fever blister is another term for a cold sore, typically caused by the herpes simplex virus. It is not related to tinea pedis, which is a fungal infection of the feet.
D. "Athlete's foot"
Explanation:
Tinea pedis is commonly known as athlete's foot. It is a fungal infection that affects the skin of the feet, particularly the spaces between the toes. The condition is often associated with warm and moist environments, such as those found in athletic shoes, hence the term "athlete's foot."
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