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Which physiologic event is the key indicator of the commencement of true labor?
- A. Bloody show
- B. Cervical dilation and effacement
- C. Fetal descent into the pelvic inlet
- D. Uterine contractions every 7 minutes
Correct Answer: B
Rationale: The correct answer is B: Cervical dilation and effacement. This is the key indicator of true labor as it signifies the physiological changes needed for the cervix to open and thin out, allowing the baby to pass through the birth canal. Bloody show (A) can be present in early labor but is not a definitive sign. Fetal descent (C) and regular uterine contractions (D) are important, but cervical changes are the most reliable indicator of true labor initiation.
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The nurse is explaining the physiology of uterine contractions to a group of nursing students. Which statement best explains the maternal-fetal exchange of oxygen and waste products during a contraction?
- A. Little to no affect
- B. Increases as blood pressure decreases
- C. Diminishes as the spiral arteries are compressed
- D. Continues except when placental functions are reduced
Correct Answer: D
Rationale: The correct answer is D because maternal-fetal exchange of oxygen and waste products continues during uterine contractions unless placental functions are reduced. Contractions do not directly affect this exchange, so option A is incorrect. Option B is incorrect because blood pressure changes do not necessarily impact the exchange. Option C is incorrect because spiral arteries play a role in supplying blood to the placenta, but compression during contractions does not halt the exchange process.
The nurse is explaining the physiology of uterine contractions to a group of nursing students. Which statement best explains the maternal-fetal exchange of oxygen and waste products during a contraction?
- A. Little to no affect
- B. Increases as blood pressure decreases
- C. Diminishes as the spiral arteries are compressed
- D. Continues except when placental functions are reduced
Correct Answer: D
Rationale: Rationale for Correct Answer (D):
- During uterine contractions, placental blood flow may be temporarily reduced but not completely halted.
- Fetal-maternal exchange of oxygen and waste products continues to occur even during contractions.
- This is because the placenta acts as a continuous filter, allowing exchange to happen unless placental functions are severely compromised.
Summary of Other Choices:
A: Incorrect. There is an effect on maternal-fetal exchange during contractions.
B: Incorrect. Increased blood pressure does not necessarily correlate with increased exchange.
C: Incorrect. Compression of spiral arteries may impact blood flow but does not completely stop exchange.
The nurse is caring for a laboring patient with multiple family members in the room. How can the nurse address this situation?
- A. Educate the family that the pain the laboring person is experiencing is normal.
- B. Ask them all to leave the room.
- C. Explain that if the laboring person got an epidural, she would be more comfortable
- D. Assume the laboring person wants the family in the room
Correct Answer: B
Rationale: The correct answer is B because having multiple family members in the room during labor can be overwhelming and hinder the progress of labor. It is important for the laboring person to have privacy, focus, and reduce stress for a smoother labor experience. Asking the family members to leave the room ensures a calm and supportive environment for the laboring person.
Incorrect Choices:
A: Educating the family about pain normalcy is helpful, but privacy and focus are more crucial during labor.
C: Mentioning epidural may not be appropriate as it is the laboring person's decision and may not be the best option for everyone.
D: Assuming the laboring person wants family in the room without considering their preference may not be the best approach for their comfort and progress in labor.
A woman who is 39 weeks pregnant presents to the labor and delivery unit stating that she thinks she is in labor. Her contractions are irregular at 7 to 10 minutes apart. Which sign is definitive for true labor?
- A. Pain decreases when walking.
- B. Cervical dilation is occurring.
- C. The fetal membranes rupture.
- D. The fetal head is at –1 station.
Correct Answer: B
Rationale: The correct answer is B: Cervical dilation is occurring. During true labor, the cervix begins to dilate and efface in preparation for childbirth. This process is a definitive sign of active labor. In contrast, the other choices are not definitive signs of true labor. Choice A is incorrect because pain decreasing when walking is not a specific indicator of true labor. Choice C, the fetal membranes rupturing, indicates the beginning of labor but is not the definitive sign. Choice D, the fetal head at –1 station, signifies the descent of the baby into the pelvis but does not confirm active labor.
The nurse is caring for a 34-year-old gravida 4, para 3 experiencing a prolonged labor. The physician performed an amniotomy 3 hours ago to stimulate the progression of labor. The patient’s most recent vaginal exam was 8/80%/0. Which assessment finding should the nurse should be most concerned about?
- A. Pain score of 7/10
- B. FHR baseline of 165
- C. Mild variable decelerations
- D. Increased bloody mucous discharge
Correct Answer: B
Rationale: The correct answer is B: FHR baseline of 165. In this scenario, a FHR baseline of 165 is concerning as it is higher than the normal range (110-160 bpm) for a term fetus. This may indicate fetal distress or hypoxia, possibly due to cord compression or placental insufficiency. High baseline FHR can lead to fetal complications like acidosis or asphyxia. The other choices are less concerning: A is subjective and manageable, C indicates a common response to labor and is usually transient, and D is expected after amniotomy. Monitoring and addressing the abnormal FHR is crucial for fetal well-being.