Why are neonates predisposed to problems with thermoregulation?

Correct Answer: C

Rationale: Neonates have a large surface area relative to their weight, which makes them prone to heat loss to the environment, leading to thermoregulation issues. The underdeveloped kidney affecting urine concentration (Choice A) is unrelated to the thermal regulation process. While a flexed posture can help retain heat (Choice B), it does not outweigh the impact of the large body surface area in neonates. Although subcutaneous fat (Choice D) provides insulation, in neonates, the large body surface area is more significant in contributing to heat loss than the fat's insulating properties.

Correct Answer: C

Rationale: When a parent's infant is born with physical defects, understanding the psychological reactions is crucial. The reaction is often similar to the grief experienced when facing the death of a child. Parents need to grieve for the loss of the expected child and adapt to the needs of a child with physical defects. The grief process typically involves stages like shock, frustration, and anger, which can last for years. Denial during the shock phase is not maladaptive but can help parents cope initially. Additionally, parents are sensitive to the behavior of health professionals, whose interactions can significantly influence the parents' reactions to the infant. Therefore, recognizing the similarity of the psychological reaction to grief is an important consideration in understanding how parents cope with their infant's physical defects.

Correct Answer: D

Rationale: The correct answer is D, 'Small for gestational age.' A small for gestational age, or small-for-date, infant is any child whose intrauterine growth rate was slowed and whose birth weight falls below the 10th percentile on intrauterine growth curves. Choices A and B, 'Postterm' and 'Postmature,' refer to infants born after 42 weeks of gestational age regardless of birth weight, and do not specifically address growth rate. Choice C, 'Low birth weight,' refers to infants with a birth weight less than 2500 g (5.5 pounds) regardless of gestational age, which is a different classification compared to being small for gestational age.

Correct Answer: C

Rationale: The primary consideration of susceptibility to infections in neonates is their diminished nonspecific and specific immunity. Neonates lack the ability to mount a robust immune response, making them vulnerable to infections. Choice A is incorrect because neonates do not have increased humoral immunity; rather, their humoral immunity is diminished. Choice B is incorrect as neonates do not have an overwhelming anti-inflammatory response; instead, their immune responses are generally weakened. Choice D is incorrect because neonates have diminished or absent levels of immunoglobulin A and immunoglobulin M, contributing to their susceptibility to infections.

Correct Answer: B

Rationale: The correct response for the nurse to provide in this situation is to ask more questions to determine if the infant is displaying symptoms of colic. Colic is a common condition in infants that can lead to prolonged crying and fussiness. It is essential to assess for other symptoms before giving advice to the parent. Choices A, C, and D are incorrect because they do not address the possibility of colic or the need for further assessment of the infant's condition.