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, the placenta covers the cervix, increasing the risk of bleeding. Decreased oxygen saturation can indicate poor perfusion due to bleeding, necessitating immediate medical attention. A: BP of 95/60 is relatively normal and not an urgent concern in this scenario. B: Temperature of 100.1°F may indicate an infection but is not directly related to placenta previa. C: Urine output of 40 mL/hour is within the normal range and does not directly impact the management of placenta previa.

Correct Answer: A

Rationale: The correct answer is A: contractions and pushing efforts. During labor and birth, contractions help to dilate the cervix and push the baby down the birth canal. Pushing efforts from the mother help to expel the baby out. Pelvis and pelvic floor tissues (choice B) provide the passage for the baby but do not actively contribute to the powers of labor. Fetal position, attitude, lie, and presentation (choice C) refer to the baby's position and orientation in the womb, which can affect the progress of labor but do not constitute the powers of labor. Oxytocin (choice D) is a hormone that stimulates contractions but is not the sole component of the powers of labor and birth.

Correct Answer: D

Rationale: The correct answer is D: when pushing begins. The second stage of labor begins when the cervix is fully dilated, and the mother starts pushing to deliver the baby. This stage ends with the birth of the baby. Option A is incorrect because the second stage begins after birth. Option B is incorrect as it refers to the transition phase, not the second stage. Option C is incorrect because the cervix being fully dilated and effaced marks the beginning of the second stage, not the end of it.

Correct Answer: C

Rationale: The correct answer is C because a blood pressure of 142/88 is considered high and abnormal during the first stage of labor. This could indicate hypertension, which can have serious implications for both the mother and the baby. High blood pressure can lead to complications such as preeclampsia. A, B, and D are incorrect because: A: Patient moaning with contractions is a common response to labor pains and does not necessarily indicate an abnormal finding. B: Contractions 3 minutes apart lasting 60 seconds are within the normal range for the first stage of labor. D: A respiratory rate of 22 is also within the normal range and is not indicative of any abnormal findings during the first stage of labor.

Correct Answer: B

Rationale: During the third stage of labor, the correct answer is B because it describes the typical experiences of the birthing person during this stage. Cramping signifies uterine contractions, a gush of fresh vaginal bleeding indicates the delivery of the placenta, and lengthening of the umbilical cord indicates separation from the placenta. The other options are incorrect as they do not align with the physiological processes of the third stage of labor. A is incorrect as the fetus is delivered in the second stage, not the third. C is incorrect as dyspnea (difficulty breathing) is not a common symptom during the third stage. D is incorrect as increased blood pressure and pain are not typical experiences during this stage.