The nurse is preparing to care for a child with a diagnosis of intussusception. The nurse reviews the child's record and expects to note which sign of this disorder documented?

A. "Newborns are abdominal breathers."
Explanation: While it is true that newborns primarily use their diaphragms for breathing (abdominal breathing), this statement does not specifically address why the respiratory rate should be counted for a full minute.
B. "Activity will increase the respiratory rate."
Explanation: This statement acknowledges that activity can influence the respiratory rate but does not specifically address the need to count for a full minute to capture the irregular patterns.
C. "Newborns do not expand their lungs fully with each respiration."
Explanation: This statement highlights a characteristic of newborn respiratory physiology but does not specifically explain the importance of counting the respiratory rate for a full minute.
D. "The rate and rhythm of breath are irregular in newborns."
Explanation:
Newborns often have irregular breathing patterns, and counting the respiratory rate for a full minute helps capture the variations in rate and rhythm accurately. Newborns may experience periods of rapid breathing followed by periods of slower breathing, and their respiratory patterns can be influenced by sleep-wake cycles, feeding, and other factors. Counting for a full minute provides a more comprehensive and representative assessment of the newborn's respiratory status.

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.