RN Maternal Nursing OB Newborn 2023 2024 Exam -Nurselytic

Correct Answer: A

Rationale: The correct answer is A:
To secrete mucus that prevents infection. The cervix acts as a barrier to protect the fetus from potential infections entering the uterus. The mucus produced by the cervix forms a plug that blocks the entry of harmful bacteria, reducing the risk of infection reaching the developing fetus.

Choices B, C, and D are incorrect because the cervix primarily functions to provide a protective barrier against infections during pregnancy, rather than solely protecting the fetus from trauma, regulating fetal temperature, or encompassing all functions mentioned in the other options.

Correct Answer: D

Rationale: The correct answer is D - All of the above. Varicocele, Cryptorchidism, and Testicular cancer are all potential causes of male infertility. Varicocele is an abnormal enlargement of the veins within the scrotum, which can lead to reduced sperm quality. Cryptorchidism is a condition where one or both testicles fail to descend into the scrotum, affecting sperm production. Testicular cancer can also impact fertility by affecting the function of the testes.
Therefore, all three conditions can contribute to male infertility.

Choices A, B, and C are incorrect because each of them individually can cause male infertility, making D the most comprehensive and correct answer.

Correct Answer: D

Rationale: The correct answer is D: All of the above. Maternal hypertension during pregnancy can lead to preterm labor due to uteroplacental insufficiency, fetal growth restriction as the placenta may not provide adequate nutrients and oxygen to the fetus, and placental abruption due to increased risk of vascular damage. These complications can have serious consequences for both the mother and the fetus.

Choices A, B, and C are all potential complications associated with maternal hypertension, making option D the correct choice.

Correct Answer: A

Rationale: The recommended method for screening for Down syndrome during pregnancy is maternal serum screening. This test measures specific hormones and proteins in the mother's blood to assess the risk of chromosomal abnormalities in the fetus. It is a non-invasive and low-risk option that can be done early in pregnancy. Fetal ultrasound (
B) is used to evaluate fetal growth and anatomy but is not specific for Down syndrome screening. Chorionic villus sampling (
C) and amniocentesis (
D) are diagnostic tests that involve sampling fetal tissue and carry a higher risk of complications compared to maternal serum screening.

Correct Answer: A

Rationale: The correct answer is A: Fetal distress. A nuchal cord occurs when the umbilical cord is wrapped around the baby's neck. This can potentially lead to decreased blood flow and oxygen supply to the baby, resulting in fetal distress. Maternal hemorrhage and amniotic fluid embolism are not direct complications of a nuchal cord.
Therefore, the correct answer is A as it directly relates to the potential consequence of a nuchal cord.