A nurse is providing care for a patient who has recently given birth to her first child. The patient has a history of receiving a transfusion with Rh-negative blood.
The nurse expects hyperbilirubinemia due to Rh incompatibility.
What is the reason for hyperbilirubinemia occurring with Rh incompatibility?
The nurse expects hyperbilirubinemia due to Rh incompatibility.
Gastrointestinal assessment findings.
Respiratory rate.
Deep tendon reflexes.
The Correct Answer is C
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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A rationale
Neonatal abstinence syndrome is a condition that results from withdrawal from exposure to narcotics. It is not related to the newborn’s weight.
Choice B rationale
While a yellowish skin tone may indicate jaundice, this is not directly related to the newborn’s weight. Jaundice is caused by an excess of bilirubin, a yellow-orange substance in the blood.
Choice C rationale
Newborns with low birth weight are at risk for hypoglycemia because they have less stored glycogen. They may use up their glucose stores quickly and not have enough intake to maintain their blood glucose levels.
Choice D rationale
Neonatal sepsis is a severe infection in an infant less than 28 days old. It is not directly related to the newborn’s weight but can be associated with maternal infection.
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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