Correct Answer: B

Rationale: After an amniotomy, the priority nursing action is to assess the fetal heart rate pattern. This is crucial to monitor for any signs of fetal distress, as changes in the fetal heart rate could indicate potential complications related to the procedure. Observing the color and consistency of the fluid (Choice A) is important but not the priority over assessing fetal well-being. Assessing the client's temperature (Choice C) and evaluating the client for chills and increased uterine tenderness (Choice D) are not immediate priorities following an amniotomy.

Correct Answer: B

Rationale: Cullen's sign, which presents as bruising around the umbilicus, indicates the presence of blood in the peritoneum. This sign is significant in cases of a ruptured ectopic pregnancy as it suggests intraperitoneal bleeding, prompting immediate medical attention. Chvostek's sign is related to facial muscle spasm and is not indicative of peritoneal bleeding. Chadwick's sign refers to a bluish discoloration of the cervix and vagina during pregnancy, not related to peritoneal bleeding. Goodell's sign is a softening of the cervix, which is a sign of pregnancy, and not specific to peritoneal bleeding.

Correct Answer: B

Rationale: When measuring a newborn's chest circumference, the appropriate anatomical landmark to use is the nipple line. This point is consistent and allows for accurate and standardized measurements across all newborn assessments. The sternal notch is not typically used for chest circumference measurements in newborns. The xiphoid process is located at the lower end of the sternum and is not an appropriate landmark for chest circumference measurement. The fifth intercostal space is typically used for locating the point of maximal impulse (PMI) during cardiac assessments, not for measuring chest circumference.

Correct Answer: D

Rationale: In the postpartum period, the presence of lochia rubra and small clots along with a firm, midline fundus at the umbilicus is considered normal. In this situation, the appropriate action is to document the findings and continue to monitor the client. Changes in the amount and character of lochia, deviation of the fundus from the midline, or fundal height above or below the expected level may indicate a need for further intervention. Encouraging bladder emptying is important but not the priority in this scenario. Notify the healthcare provider if there are signs of abnormal postpartum bleeding or fundal abnormalities. Therefore, choice D is the correct answer. Choices A, B, and C are incorrect because at this stage, there are no signs of abnormality that require immediate notification of the healthcare provider, increased frequency of fundal massage, or immediate bladder emptying.

Correct Answer: A

Rationale: The maternal serum alpha-fetoprotein (MSAFP) test is performed around 15-18 weeks of gestation to screen for neural tube defects and other developmental abnormalities in the fetus, not to assess fetal lung maturity, markers of fetal well-being, or Rh incompatibility between the mother and fetus. Choice A is the correct answer as it accurately reflects the purpose of the MSAFP test. Choices B, C, and D are incorrect because they do not align with the primary goal of this screening test.