Nurses can prevent evaporative heat loss in the newborn by:
Drying the baby after birth and wrapping the baby in a dry blanket.
Keeping the baby out of drafts and away from air conditioners.
Placing the baby away from the outside wall and the windows.
Warming the stethoscope and the nurse’s hands before touching the baby.
The Correct Answer is A
Drying the baby after birth and wrapping the baby in a dry blanket
This prevents evaporative heat loss, which occurs when water on the skin surface evaporates and cools the skin. Evaporative heat loss is especially significant in newborns because they are wet at birth and have a large surface area relative to their body mass.
Choice B is wrong because it addresses convective heat loss, which occurs when air currents blow over the skin and carry away heat.
Convective heat loss can be prevented by keeping the baby out of drafts and away from air conditioners.
Choice C is wrong because it addresses radiant heat loss, which occurs when heat radiates from the skin to cooler objects in the environment.
Radiant heat loss can be prevented by placing the baby away from the outside wall and the windows.
Choice D is wrong because it addresses conductive heat loss, which occurs when heat transfers from the skin to cooler objects in contact with the skin.
Conductive heat loss can be prevented by warming the stethoscope and the nurse’s hands before touching the baby.
Normal body temperature for a newborn is 36.5°C to 37.5°C (97.7°F to 99.5°F).
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["A","B","C","D"]
Explanation
These are all positive signs of pregnancy, which are definitive and can only be explained by the presence of a fetus.A positive sign of pregnancy is fetal movement palpated by the nurse-midwife.
Choice E is wrong because a positive hCG test is a probable sign of pregnancy, not a positive one.A probable sign of pregnancy is strongly suggestive of pregnancy but could have other causes.A positive hCG test could be caused by medications, tumors, or other conditions that affect the level of hCG in the blood or urine.
Some other probable signs of pregnancy are uterine enlargement, Hegar’s sign (softening of the lower uterine segment), Goodell’s sign (softening of the cervix), Chadwick’s sign (bluish discoloration of the cervix), ballottement (rebound of the fetus when tapped by the examiner’s finger), Braxton Hicks contractions (painless, irregular uterine contractions), and positive pregnancy test.
Some other positive signs of pregnancy are identification of fetal heartbeat, visualization of the fetus by ultrasound or x-ray, and verification of fetal movement by an experienced clinician.
Correct Answer is A
Explanation
Vernix caseosa is a cheese-like, whitish substance that fuses with the epidermis and serves as a protective coating for the newborn.
Some possible explanations for the other choices are:
- Choice B. Surfactant is a protein that lines the alveoli of the infant’s lungs and helps prevent them from collapsing.
- Choice C. Caput succedaneum is a swelling of the tissue over the presenting part of the fetal head caused by pressure during delivery.
- Choice D. Acrocyanosis is a bluish discoloration of the hands and feet due to reduced peripheral circulation.
Normal ranges for vernix caseosa are not applicable as it varies depending on the gestational age and skin maturity of the newborn. However, it is usually more abundant in preterm infants than in term or post-term infants.
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