ATI RN
Anatomy and Physiology of Pregnancy Quizlet Questions
Question 1 of 5
The nurse teaches a pregnant woman about the presumptive, probable, and positive signs of pregnancy. The woman demonstrates understanding of the nurse's instructions if she states that a positive sign of pregnancy is:
Correct Answer: B
Rationale: The correct answer is B: fetal movement palpated by the nurse-midwife. This is a positive sign of pregnancy because it is a direct indication of the presence of a fetus. Fetal movements can only be felt once the baby has developed enough to be physically palpable, typically around 18-20 weeks of gestation. This sign is considered reliable and conclusive evidence of pregnancy. A: A positive pregnancy test is a presumptive sign, as it indicates the possibility of pregnancy but is not definitive. C: Braxton Hicks contractions are probable signs, as they are common in pregnancy but do not confirm the presence of a fetus. D: Quickening, the mother's first perception of fetal movements, is a probable sign and does not provide definitive proof of pregnancy.
Question 2 of 5
Numerous changes in the integumentary system occur during pregnancy. Which change persists after birth?
Correct Answer: D
Rationale: The correct answer is D, Striae gravidarum, because it refers to stretch marks that occur during pregnancy and often persist postpartum. Epulis (A) is a benign gingival tumor that typically resolves after pregnancy. Chloasma (B) is a skin condition causing dark patches that usually fade postpartum. Telangiectasia (C) are small dilated blood vessels that commonly appear during pregnancy but may diminish after giving birth. Therefore, the key differentiator is the persistence of Striae gravidarum after delivery.
Question 3 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 4 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 5 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.