To prevent heat loss from convection in a newborn, which action by the nurse is best?

The correct answer is choice D. Announcement of the delivery.

Choice A reason:

Support thermoregulation is a priority in nursing care of the newborn immediately after birth. Newborns are at risk of hypothermia because they have a large surface area to body mass ratio, thin skin, and limited subcutaneous fat. To prevent heat loss, newborns should be dried thoroughly, placed skin-to-skin with the mother, and covered with warm blankets.

Choice B reason:

Identifying the infant is a priority nursing care of the newborn immediately after birth. Newborns should be identified with identification bands that match those of the mother and father or significant other. This helps prevent errors in infant identification and ensures safety and security.

Choice C reason:

Promoting normal respirations is a priority nursing care of the newborn immediately after birth. Newborns need to establish effective breathing patterns to ensure adequate oxygenation and prevent complications such as respiratory distress syndrome or meconium aspiration syndrome. To promote normal respirations, newborns should be suctioned gently to clear the airway, stimulated to cry, and assessed for signs of distress.

Choice D reason:

Announcement of the delivery is not a priority in nursing care of the newborn immediately after birth. While it may be a joyful moment for the parents and family, it does not affect the health and well-being of the newborn. Therefore, it can be done later after the essential newborn care has been completed.

Choice A reason:

Basal metabolic rate reduction. This is incorrect because a newborn under a radiant heat warmer will have an increased basal metabolic rate, not a reduced one. The basal metabolic rate is the amount of energy the body uses at rest, and it is influenced by temperature. A warmer environment will stimulate the newborn's metabolism and increase the energy expenditure. • Choice B reason:

Brown fat production. This is incorrect because a newborn under a radiant heat warmer will have less need for brown fat production, not more. Brown fat is a type of fat tissue that generates heat by burning calories. It is found in newborns and helps them maintain their body temperature in cold environments. A warmer environment will reduce the need for brown fat activation. • Choice C reason:

Shivering. This is incorrect because a newborn under a radiant heat warmer will not shiver, but shivering is not the main mechanism of heat production in newborns. Shivering is an involuntary contraction of muscles that generates heat by increasing metabolism. Newborns have limited ability to shiver because of their immature nervous system and low muscle mass. They rely more on brown fat and increased metabolic rate to produce heat. • Choice D reason:

Cold stress. This is correct because a newborn under a radiant heat warmer will prevent cold stress, which is a condition where the newborn's body temperature drops below normal and causes adverse effects. Cold stress can impair oxygen delivery, increase acidosis, decrease blood glucose, and increase the risk of infection and bleeding. A radiant heat warmer provides a neutral thermal environment for the newborn and prevents heat loss by radiation.

: 1 : 2 : 3 : 4.