A nurse is caring for a client who has just delivered her first newborn. The nurse anticipates hyperbilirubinemia due to Rh incompatibility. The nurse should understand that hyperbilirubinemia occurs with Rh incompatibility for which of the following reasons?
The client'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.
The client's blood contains the Rh factor, and the newborn's does not, and antibodies that destroy red blood cells are formed in the fetus.
The client has a history of receiving a transfusion with Rh-negative blood.
The client's anti-A and anti-B antibodies cross the placenta and cause the destruction of the fetal red blood cells.
The Correct Answer is A
Choice A rationale:
Rh incompatibility occurs when an Rh-negative client is exposed to Rh-positive fetal blood, typically during a prior pregnancy or delivery. The client’s immune system produces anti-Rh antibodies that cross the placenta in subsequent pregnancies, attacking the Rh-positive red blood cells of the fetus. This hemolysis releases bilirubin, leading to hyperbilirubinemia in the newborn.
Choice B rationale:
Rh incompatibility only occurs when the client is Rh-negative and the fetus is Rh-positive. An Rh-positive client will not form antibodies against an Rh-negative fetus, as their immune system recognizes the Rh factor as normal.
Choice C rationale:
This choice is not related to the mechanism of Rh incompatibility. Receiving a transfusion with Rh-negative blood would not cause the mother's immune system to produce anti-Rh antibodies or lead to Rh incompatibility with her newborn.
Choice D rationale:
This choice describes the ABO blood group system, not the Rh factor. ABO incompatibility can occur when a mother with blood type O (producing anti-A and anti-B antibodies) has a newborn with blood type A, B, or AB, leading to hemolysis of the fetal red blood cells. However, the question specifically mentions Rh incompatibility, which involves the Rh factor, not the ABO system.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A reason:
Breastfeeding is the recommended first line of action for a newborn with a blood glucose level of 40 mg/dL, which is on the lower end of the normal range (normal range: 40-60 mg/dL for a newborn). Breast milk provides a natural source of glucose and other nutrients essential for the newborn's growth and development. It also facilitates bonding and has immunological benefits. Early initiation of breastfeeding helps to stabilize the blood glucose levels naturally.
Choice B reason:
Gavage feeding 60 mL of glucose water is not the first choice for managing borderline low blood glucose levels in a newborn. This method is typically reserved for infants who cannot feed orally due to medical conditions or prematurity. It is an invasive procedure and can be stressful for the newborn.
Choice C reason:
Administering 10 mL of D5W (5% dextrose in water) via IV is a treatment for hypoglycemia (low blood glucose levels), not for borderline low levels like 40 mg/dL. This intervention is usually considered when blood glucose levels are significantly lower than the normal range and the infant is symptomatic or unable to tolerate oral feedings.
Choice D reason:
Rechecking the glucose level in 2 hours is a passive approach and may not be appropriate for a newborn with a blood glucose level of 40 mg/dL. Immediate action, such as feeding, is preferred to prevent potential hypoglycemia and its associated risks.
Correct Answer is A
Explanation
Fresh cabbage leaves have been traditionally used as a home remedy to help alleviate pain and discomfort associated with breast engorgement. The coolness of the cabbage leaves can provide a soothing effect, and they may also have anti-inflammatory properties that help reduce swelling. However, it is important to note that this should be used as a complementary measure and not a substitute for medical treatment or advice if the engorgement is severe or persistent.
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