When caring for a woman with a complete placenta previa, which finding should the nurse report to the physician?

Correct Answer: D

Rationale: The correct answer is D: O2 saturation less than 95%. In placenta previa, there is a risk of maternal hemorrhage, which can lead to decreased oxygen delivery to tissues. Reporting low O2 saturation is crucial as it indicates potential hypoxia, necessitating immediate intervention. Choice A (BP of 95/60) may be within normal limits. Choice B (Temperature of 100.1°F) can indicate infection but is not directly related to placenta previa. Choice C (Urine output of 40 mL/hour) may reflect renal function but is not the priority in this situation.

Correct Answer: A

Rationale: The correct answer is A (contractions and pushing efforts) because they are the main physiological components of labor and birth. Contractions help to thin and dilate the cervix, while pushing efforts help the baby descend through the birth canal. Pelvis and pelvic floor tissues (B) play a role in the mechanics of birth but do not make up the powers of labor. Fetal position, attitude, lie, and presentation (C) are important factors influencing labor progress but do not constitute the powers of labor. Oxytocin (D) is a hormone that stimulates contractions but is not a direct component of the powers of labor.

Correct Answer: D

Rationale: The correct answer is D because the second stage of labor begins when the mother starts pushing to deliver the baby. This stage involves the actual delivery of the baby and ends with the birth. The other choices are incorrect because: A: Labor begins before the second stage. B: The early phase is part of the first stage of labor. C: Full dilation and effacement mark the transition between the first and second stages but pushing is when the second stage actually begins.

Correct Answer: C

Rationale: The correct answer is C because a blood pressure of 142/88 is considered abnormal during the first stage of labor. Elevated blood pressure can indicate preeclampsia, a serious condition that requires immediate medical attention. A: Patient moaning with contractions is a common response to pain during labor and not necessarily abnormal. B: Contractions 3 minutes apart lasting 60 seconds are within the normal range for the first stage of labor. D: Respiratory rate of 22 is within the normal range and not indicative of any abnormalities during labor. In summary, the abnormal finding in this scenario is the elevated blood pressure, which can be a sign of a serious condition like preeclampsia.

Correct Answer: B

Rationale: During the third stage of labor, the birthing person may experience cramping, a gush of fresh vaginal bleeding, and lengthening of the umbilical cord. This is due to the delivery of the placenta. Cramping helps expel the placenta, fresh vaginal bleeding is normal after delivery, and the lengthening of the umbilical cord indicates that the placenta is detaching. Choices A, C, and D are incorrect as they do not accurately describe the typical experiences during the third stage of labor.