ATI RN
RN Maternal Nursing OB Newborn 2023 2024 Exam Questions
Extract:
Question 1 of 5
Which of the following hormones is responsible for stimulating uterine contractions during labor?
Correct Answer: D
Rationale: Oxytocin is the correct answer as it is the hormone responsible for stimulating uterine contractions during labor. Oxytocin is produced by the pituitary gland and plays a crucial role in initiating and sustaining labor contractions. It acts on the smooth muscle cells of the uterus, causing them to contract and aiding in the progression of labor. Progesterone and estrogen are involved in preparing the uterus for pregnancy but do not directly stimulate contractions. Prolactin is responsible for milk production, not uterine contractions.
Therefore, D is the correct answer due to its specific role in labor contractions.
Question 2 of 5
What is the function of the cervix during pregnancy?
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.
Question 3 of 5
Which of the following is a potential cause of male infertility?
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.
Question 4 of 5
Which of the following is a potential complication of maternal hypertension during pregnancy?
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.
Question 5 of 5
What is the recommended method of screening for Down syndrome during pregnancy?
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.