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

Answer and Explanation

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.

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Correct Answer is ["C","D","E"]

Explanation

A. Set the water heater at 65.6° C (150° F):
The recommended temperature for a water heater is around 49°C (120°F) to prevent burns. Setting it at 65.6°C (150°F) can lead to scald injuries.
B. Install accordion style gates: Accordion-style gates are not recommended because they can pose a strangulation risk. The safer option is to use gates with vertical or horizontal slats that are spaced closer together.
C. Fit the mattress so that it is snug against the sides of the crib: A snug-fitting mattress prevents gaps where the baby could get trapped or injured.
D. Tie plastic bags in knots before discarding them:
This prevents accidental suffocation or choking hazards that can occur if an infant gets hold of a plastic bag.
E. Serve food in small, non-circular pieces:Serving food in small, non-circular pieces reduces the risk of choking. Infants should be given age-appropriate foods to minimize the risk of choking, and cutting food into small, easy-to-manage pieces is recommended.

A. Heat intolerance B. Bradycardia C. Lethargy D. Weight gain

Correct Answer is A

Explanation

A. Heat intolerance
Explanation:
Graves' disease is an autoimmune disorder that results in hyperthyroidism, meaning there is an overproduction of thyroid hormones. Common symptoms of Graves' disease include heat intolerance, increased sweating, weight loss, palpitations, and anxiety. The hyperactivity of the thyroid gland leads to an increased metabolic rate, causing heat intolerance.
B. Bradycardia
Explanation: Bradycardia (slow heart rate) is not typically associated with Graves' disease. Hyperthyroidism usually leads to an increased heart rate (tachycardia) due to the stimulatory effects of thyroid hormones on the cardiovascular system.
C. Lethargy
Explanation: Lethargy (excessive tiredness or lack of energy) is more commonly associated with hypothyroidism, where there is an insufficient production of thyroid hormones. In Graves' disease, the excess thyroid hormones often lead to symptoms of hyperactivity, not lethargy.
D. Weight gain
Explanation: Weight gain is not a typical finding in Graves' disease. Hyperthyroidism often leads to unintentional weight loss due to increased metabolism and energy expenditure. Weight gain is more commonly associated with hypothyroidism.

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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?

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