The nurse is aware that there are multiple classifications for cesarean deliveries. Which situations does the nurse classify as an unscheduled cesarean birth? Select all that apply.

Correct Answer: C

Rationale: The correct answer is C because an unscheduled cesarean birth occurs when the cervix fails to fully dilate after prolonged labor, leading to the need for an emergency cesarean section. This situation poses risks to both the mother and the baby, necessitating immediate intervention. Choice A is incorrect because a previous cesarean delivery does not necessarily mean the current cesarean birth is unscheduled. Choice B is incorrect as evidence of a prolapsed cord with membrane rupture would typically lead to an emergency cesarean delivery but is not the only scenario for unscheduled cesarean birth. Choice D is also incorrect as a preexisting cardiac health condition does not automatically indicate the need for an unscheduled cesarean birth.

Correct Answer: D

Rationale: The correct answer is D because electronic fetal monitoring is the only method that can directly measure and display the fetal heart rate in response to contractions. Variability, tachycardia, and bradycardia can also be observed through electronic fetal monitoring, but fetal response to contractions specifically requires continuous monitoring of the fetal heart rate during contractions. Therefore, D is the only clinical finding that can be determined exclusively through electronic fetal monitoring. Variability (A), tachycardia (B), and bradycardia (C) can be identified through other means of monitoring and assessment as well.

Correct Answer: A

Rationale: The correct answer is A because at 30 weeks of gestation, a fetal heart rate of 160 to 170 bpm is considered normal due to the fetus's stage of development. Fetal heart rates gradually decrease as gestation progresses. Choices B, C, and D are incorrect because they do not directly impact the fetal heart rate based on gestational age. Choice B, fast labors, does not affect the baseline fetal heart rate. Choice C, epidural block, may cause maternal hypotension but typically doesn't affect the fetal heart rate. Choice D, mild preeclampsia, may lead to fetal distress but does not directly influence the baseline fetal heart rate.

Correct Answer: D

Rationale: The correct answer is D because determining the position of the fetus before attaching the electrode is crucial for accurate monitoring. This step ensures proper placement, reducing the risk of misinterpretation of data. Lubricating the tocotransducer with gel (A) is unnecessary and may interfere with the signal. Securing the tocotransducer with a strap (B) is important but should come after determining fetal position. Informing the patient to remain in semi-Fowler position (C) is not directly related to the correct initiation of electronic fetal monitoring.

Correct Answer: C

Rationale: The correct answer is C: Change maternal position. At 38 weeks' gestation with 4 cm dilation and 100% effacement, the fetal heart rate pattern suggests possible umbilical cord compression due to the +1 station vertex position. Changing maternal position can relieve this compression, improving fetal heart rate. Continuing oxytocin infusion (A) can worsen the situation by increasing contractions. Contacting anesthesia for epidural (B) is not indicated as it doesn't address the immediate concern. Administering Narcan and preparing for immediate delivery (D) is unnecessary and not supported by the given scenario.