ATI RN
Anatomy and Physiology of Pregnancy Quizlet Questions
Question 1 of 5
During a patient's physical examination the nurse notes that the lower uterine segment is soft on palpation. The nurse would document this finding as:
Correct Answer: C
Rationale: The correct answer is C: Chadwick's sign. This sign refers to the bluish discoloration of the cervix and vagina due to increased vascularity in early pregnancy. The lower uterine segment being soft on palpation is consistent with Chadwick's sign, indicating early signs of pregnancy. A: Hegar's sign refers to softening of the lower uterine segment, not the cervix or vagina. B: McDonald's sign is the softening of the uterus at the isthmus, not specifically at the lower uterine segment. D: Goodell's sign pertains to softening of the cervix, not the lower uterine segment.
Question 2 of 5
A 31-year-old woman believes that she may be pregnant. She took an OTC pregnancy test 1 week ago after missing her period; the test was positive. During her assessment interview, the nurse enquires about the woman’s last menstrual period and asks whether she is taking any medications. The woman states that she takes medicine for epilepsy. She has been under considerable stress lately at work and has not been sleeping well. She also has a history of irregular periods. Her physical examination does not indicate that she is pregnant. She has an ultrasound scan that reveals she is not pregnant. What is the most likely cause of the false-positive pregnancy test result?
Correct Answer: B
Rationale: The correct answer is B: She takes anticonvulsants. Anticonvulsants can interfere with pregnancy test results by causing false-positive results. Here's a step-by-step rationale: 1. Anticonvulsants, such as phenytoin and phenobarbital, contain hCG-like substances that can cross-react with pregnancy tests, leading to false-positive results. 2. The woman's history of epilepsy medication use suggests that she may be taking anticonvulsants, which could be the reason for the false-positive pregnancy test result. 3. Other choices are incorrect: A: Taking the test too early is unlikely since a week has passed since the missed period. C: Fibroid tumors do not typically cause false-positive pregnancy test results. D: Stress and hormone imbalance could impact menstrual cycles but are less likely to directly affect pregnancy test results.
Question 3 of 5
The nurse caring for the pregnant patient must understand that the hormone essential for maintaining pregnancy is:
Correct Answer: D
Rationale: The correct answer is D: progesterone. Progesterone is essential for maintaining pregnancy as it helps in thickening the uterine lining to support implantation and fetal development. Estrogen (choice A) plays a role in preparing the uterus for implantation but is not the primary hormone for maintaining pregnancy. Human chorionic gonadotropin (hCG) (choice B) is produced by the placenta and helps in detecting pregnancy but does not maintain it. Oxytocin (choice C) is involved in labor and breastfeeding, not in maintaining pregnancy.
Question 4 of 5
Appendicitis may be difficult to diagnose in pregnancy because the appendix is:
Correct Answer: D
Rationale: The correct answer is D because during pregnancy, the enlarging uterus pushes the appendix downward and laterally, making it low and to the right. This displacement can lead to atypical presentation of appendicitis symptoms. Choices A and B are incorrect as the appendix is not displaced high and to either side. Choice C is incorrect as the McBurney point is a specific location for appendicitis pain but does not describe the actual position of the appendix during pregnancy.
Question 5 of 5
Which time-based description of a stage of development in pregnancy is accurate?
Correct Answer: B
Rationale: The correct answer is B: Full Term-Pregnancy from the beginning of week 39 of gestation to the end of week 40. This is accurate because full-term pregnancy typically ranges from 39 to 40 weeks of gestation, which is considered the optimal time for a baby to be born in terms of development and health. Viability (Choice A) refers to the ability of a fetus to survive outside the womb and typically occurs between 22 to 37 weeks. Preterm (Choice C) describes a pregnancy that occurs before 37 weeks. Postdate (Choice D) refers to a pregnancy that extends beyond 40 weeks. Therefore, Choices A, C, and D are incorrect as they do not accurately describe the full-term stage of pregnancy.