Correct Answer: B

Rationale: A rubella titer of less than 1:8 indicates that the client is not immune to rubella. In such cases, retesting will be necessary during the pregnancy. If the client is found to be non-immune, rubella immunization is required post-delivery. Therefore, choices A, C, and D are incorrect. Choice A suggests exposure, which cannot be confirmed by the titer result. Choice C wrongly implies that the client has not developed immunity, which is not accurate. Choice D is incorrect as the titer result is not within the normal immune range.

Correct Answer: A

Rationale: The correct interpretation of the Chadwick sign is that the cervix appears violet in color. This sign is a probable sign of pregnancy, characterized by the violet coloration of the cervix due to increased vascularity of the pelvic organs. It is not a definitive positive sign of pregnancy but rather a probable one. Choices B and D are incorrect as cervical softening is known as the Goodell sign, and thinning of the cervix is referred to as the Hegar sign. These signs are also probable signs of pregnancy, but they do not specifically indicate the Chadwick sign.

Correct Answer: C

Rationale: During the fourth stage of labor, the woman's vital signs should be assessed every 15 minutes during the first hour. An increasing pulse rate is an early sign of excessive blood loss, as the heart beats faster to compensate for reduced blood volume. The blood pressure decreases as blood volume diminishes, but this is a later sign of hypovolemia. The most common reason for excessive postpartum bleeding is a uterus that is not firmly contracting and compressing open vessels at the placental site. Therefore, the nurse should check the client's uterine fundus for firmness, height, and positioning. Checking the uterine fundus is the priority action as it helps determine if the client is bleeding excessively. Notifying the registered nurse immediately is not necessary unless the cause of bleeding is unclear and needs further intervention. Continuing to check vital signs without addressing the potential issue will delay necessary intervention. Documenting findings is important, but not the immediate priority when faced with a potential emergency situation like postpartum hemorrhage.

Correct Answer: C

Rationale: The correct answer is 'Devices that apply pressure alone are available over the counter.' Acupressure over the Neiguan acupuncture point can be used as a complementary alternative therapy to relieve nausea during pregnancy. It can be performed with devices that apply pressure alone, which are available over the counter. Acupressure devices that apply electrical impulses over this point require a prescription. It is not safe to try any type of complementary alternative therapy during pregnancy, as some may be harmful to the mother and fetus. Therefore, the nurse should instruct the client about the availability of over-the-counter pressure devices for acupressure, which are generally safe to use.

Correct Answer: C

Rationale: The correct answer is 'One-half.' According to the MyPlate food plan, at least half of the grains consumed daily should be whole grains. This ensures a well-balanced and healthy diet. Choices A, B, and D are incorrect because they do not align with the dietary recommendation provided by the MyPlate food plan. One-quarter, one-third, and two-thirds do not represent the appropriate proportion of whole grains as advised by the plan, which emphasizes the importance of including a significant portion of whole grains in one's diet.