A nurse is preparing to assess a newborn who is postmature. Which of the following findings should the nurse expect?
Cracked, peeling skin
Abundant lanugo
Short, soft fingernails
Abundant vernix .
The Correct Answer is A
Choice A rationale: A postmature newborn, or one born after 42 weeks of gestation, is likely to exhibit cracked, peeling skin due to the prolonged exposure to amniotic fluid and the absence of vernix. This makes Choice A the correct answer, as it reflects the expected findings for a postmature newborn.
Choice B rationale: Abundant lanugo is typically seen in preterm infants, not postmature infants. Lanugo is a fine, downy hair that covers the fetus and usually disappears by 37 weeks of gestation. Therefore, Choice B is not an expected finding for a postmature newborn.
Choice C rationale: Short, soft fingernails are characteristic of preterm infants. In postmature infants, fingernails are generally long and may extend beyond the fingertips due to prolonged gestation. This makes Choice C an incorrect answer for the expected findings of a postmature newborn.
Choice D rationale: Abundant vernix is typically seen in preterm and term infants. Vernix is a white, cheesy substance that covers the fetal skin to protect it from amniotic fluid. Postmature infants usually have minimal to no vernix present, as it has already been absorbed. Therefore, Choice D is not an expected finding for a postmature newborn.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A rationale
The patient’s anti-A and anti-B antibodies crossing the placenta and causing the destruction of the fetal red blood cells is related to ABO incompatibility, not Rh incompatibility.
Choice B rationale
If the patient’s blood contains the Rh factor and the newborn’s does not, Rh incompatibility would not occur. Rh incompatibility happens when the mother’s blood does not contain the Rh factor (Rh-negative), but the baby’s blood does contain the Rh factor (Rh-positive).
Choice C rationale
The patient’s blood does not contain the Rh factor, so she produces anti-Rh antibodies that cross the placental barrier and cause hemolysis of red blood cells in newborns. This is the correct reason for hyperbilirubinemia occurring with Rh incompatibility.
Choice D rationale
The patient’s blood containing anti-Rh antibodies that attack the newborn’s red blood cells is a result of Rh incompatibility, but it does not explain why hyperbilirubinemia occurs.
Hyperbilirubinemia occurs due to the breakdown of the extra red blood cells, leading to an increase in bilirubin levels.
Correct Answer is D
Explanation
Choice A rationale: An awake, alert, and crying newborn is a common observation and does not specifically indicate Neonatal Abstinence Syndrome (NAS). Newborns have varying sleep-wake cycles, and it’s normal for them to have periods of being awake and alert. Crying is also a normal behavior for newborns as it’s their primary means of communication. It could indicate a variety of needs such as hunger, the need for a diaper change, or just the need for comfort and contact. Therefore, while an excessively crying baby could potentially be a sign of discomfort or distress, it is
not specifically indicative of NAS.
Choice B rationale: The presence of acrocyanosis, which is the bluish color of the hands and feet, is a normal finding in the first 24 to 48 hours of life due to immature circulation. It’s not specifically associated with NAS. NAS is a group of problems that occur in a newborn who was exposed to addictive opiate drugs while in the mother’s womb. Acrocyanosis is generally not a symptom of NAS.
Choice C rationale: A respiratory rate of 70/min is higher than the normal range (30-60/min) for a newborn and could indicate respiratory distress. However, it’s not specifically indicative of NAS. There are many potential causes of tachypnea (increased respiratory rate) in a newborn, including transient tachypnea of the newborn (TTN), respiratory distress syndrome (RDS), pneumonia, meconium aspiration syndrome (MAS), and more. While infants with NAS mayexperience symptoms such as stuffy nose, sneezing, and rapid breathing, a high respiratory rate alone is not specifically indicative of NAS.
Choice D rationale: Jitteriness in the hands of a newborn can be a sign of Neonatal Abstinence Syndrome (NAS). NAS is a drug withdrawal syndrome in newborns that occurs primarily among opioid-exposed infants shortly after birth, often manifested by central nervous system irritability, autonomic overreactivity, and gastrointestinal tract dysfunction. Jitteriness or tremors, especially when disturbed, along with other signs such as high-pitched crying, poor feeding, and
loose stools, are more indicative of NAS.
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