A nurse is teaching car seat safety to a parent of an infant who weighs 4.5 kg (10 lb). Which of the following car seat positions should the nurse include in the teaching?

A. “This is a vasomotor response caused by cooling or warming": While vasomotor responses can cause changes in skin color due to temperature changes, acrocyanosis specifically refers to blue discoloration of the hands and feet due to reduced peripheral circulation, not necessarily due to temperature changes.

B. “This is normal her circulatory system will take a few days to adjust”: While it's true that newborns may have transient circulatory changes as their circulatory system adapts after birth, acrocyanosis specifically refers to a benign condition characterized by persistent blue discoloration of the extremities unrelated to circulatory adjustments.

C. "Let's watch her carefully to make sure she does not have a circulatory problem": While it's important to monitor infants for any signs of circulatory problems, acrocyanosis is typically a

benign and self-limiting condition that does not require intervention unless accompanied by other concerning symptoms.

D. "Your daughter has acrocyanosis; this is causing her blue hands and feet.”: This response provides an accurate explanation for the blue discoloration of the infant's hands and feet. Acrocyanosis is a common and benign condition in newborns characterized by blue discoloration of the extremities due to peripheral vasoconstriction, which gradually resolves over the first few days to weeks of life.

A. Controls impulsive feelings: Preschoolers are still developing their ability to control impulses. While they may begin to understand the concept of rules and consequences, complete control over impulsive feelings is not typically expected at this stage.

B. Expresses need for privacy: Preschoolers may begin to show a growing awareness of privacy but may not consistently express this need or fully understand its implications. This is more commonly seen in older children and adolescents.

C. Builds a collection of cards: Building a collection of cards is not a typical developmental task for preschoolers. While they may engage in collecting objects, the items they collect are often related to their interests and may vary widely.

D. Participates in imaginary play: Imaginary play is a significant aspect of preschoolers' development. They often engage in make-believe scenarios, role-playing, and using objects symbolically to represent other objects. This type of play fosters creativity, social skills, and cognitive development in preschool-aged children.