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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.

Answer and Explanation

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.

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Correct Answer is A

Explanation

Choice A rationale:

Cesarean birth is a factor strongly associated with postpartum deep-vein thrombosis (DVT) After a cesarean section, the risk of developing DVT increases due to reduced mobility and potential trauma to blood vessels during the surgery. Decreased mobility can lead to blood stasis, increasing the risk of clot formation.

Choice B rationale:

Rheumatoid arthritis (Choice B) is not directly associated with an increased risk of postpartum DVT. Other autoimmune disorders, such as antiphospholipid syndrome, may be associated with a higher risk of DVT, but rheumatoid arthritis itself is not a known risk factor.

Choice C rationale:

Hypotension (Choice C) is not directly linked to an increased risk of postpartum DVT. However, hypotension can be associated with other complications and should be managed appropriately.

Choice D rationale:

Uterine atony (Choice D) is excessive bleeding following childbirth due to the uterus not contracting adequately. While it is a postpartum complication, it is not directly associated with an increased risk of DVT.

A. Hyporeactivity. B. Excessive high-pitched cry. C. Acrocyanosis. D. Respiratory rate of 50/min.

Correct Answer is B

Explanation

Choice A rationale:

Hyporeactivity, or reduced responsiveness to stimuli, is not typically associated with neonatal abstinence syndrome (NAS) NAS is characterized by increased irritability and not reduced activity.

Choice B rationale:

An excessive high-pitched cry is a common manifestation of neonatal abstinence syndrome. Infants exposed to substances like methadone during pregnancy may experience heightened sensitivity and exhibit a high-pitched cry as a sign of withdrawal.

Choice C rationale:

Acrocyanosis, a bluish discoloration of the hands and feet, is not a specific indicator of neonatal abstinence syndrome. It is a common finding in newborns and often resolves on its own.

Choice D rationale:

A respiratory rate of 50/min is within the normal range for a newborn. It is not an indication of neonatal abstinence syndrome.

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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?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A postpartum complication a client is at risk for is deep-vein thrombosis. Which of the following is a factor strongly associated with this postpartum complication?

Correct Answer is A

Explanation

A nurse is assessing a newborn who is 48 hr old and has a maternal history of methadone use during pregnancy. Which of the following manifestations should the nurse identify as an indication of neonatal abstinence syndrome?

Correct Answer is B

Explanation

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