A nurse is caring for a preterm newborn who is in an incubator to maintain a neutral thermal environment. The father of the newborn asks the nurse why this is necessary.
Which of the following responses should the nurse make?
“Preterm newborns have a smaller body surface area than normal newborns”
“Preterm newborns lack adequate temperature control mechanisms”
“The heat in the incubator rapidly dries the sweat of preterm newborns”
“The added brown fat layer in preterm newborn reduces his ability to generate heat” .
The Correct Answer is B
Choice A rationale
While it is true that preterm newborns have a smaller body surface area than full-term newborns, this is not the primary reason for using an incubator. A smaller body surface area can contribute to heat loss, but the main issue is the lack of adequate temperature control mechanisms.
Choice B rationale
Preterm newborns lack the adequate temperature control mechanisms that full-term newborns have. They have less subcutaneous fat to insulate them and a higher surface area to volume ratio, which increases heat loss. They also lack the ability to shiver to generate heat.
Therefore, an incubator is used to maintain a neutral thermal environment.
Choice C rationale
The heat in the incubator does not rapidly dry the sweat of preterm newborns. In fact, preterm newborns do not sweat as efficiently as full-term newborns or adults, so they are less likely to lose heat through sweating.
Choice D rationale
The statement that the added brown fat layer in preterm newborn reduces his ability to generate heat is incorrect. In fact, preterm newborns have less brown fat than full-term newborns. Brown fat is a type of fat that generates heat when metabolized, and it is an important source of heat for newborns.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A rationale
The largest fetal diameter passing through the pelvic outlet is not what is indicated by the presenting part being at 0 station. This would be more indicative of a positive station, such as
+31.
Choice B rationale
The position of the fetal head, such as left occiput posterior, is not determined by the station of the presenting part. The station refers to the level of the presenting part in relation to the mother’s ischial spines.
Choice C rationale
The palpability of the posterior fontanel is not related to the station of the presenting part. The fontanels are soft spots on the baby’s head which allow for compression during birth and brain growth after birth.
Choice D rationale
This is the correct interpretation of the clinical finding. The presenting part is at 0 station when its lowermost portion is at the level of an imaginary line drawn between the client’s ischial spines.
Correct Answer is A
Explanation
If the umbilical cord is protruding from the vagina, it’s a medical emergency known as cord prolapse. The nurse should insert a gloved hand into the vagina to relieve pressure on the cord. This is done to prevent cord compression, which could cut off the baby’s oxygen supply.
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today
Report Wrong Answer on the Current Question
Do you disagree with the answer? If yes, what is your expected answer? Explain.
Kindly be descriptive with the issue you are facing.