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When evaluating the patient's progress, the nurse knows that four of the five fetal factors that interact to regulate the heart Nrate Rare I(SeGlect Bal.l CthatM apply.) U S N T O
- A. baroreceptors.
- B. adrenal glands.
- C. chemoreceptors.
- D. uterine activity.
Correct Answer: A
Rationale: The correct answer is A: baroreceptors. Baroreceptors are sensory receptors that detect changes in blood pressure and play a role in regulating heart rate. They are one of the fetal factors that interact to regulate heart rate. Adrenal glands (B) primarily regulate stress response, chemoreceptors (C) detect changes in oxygen and carbon dioxide levels, and uterine activity (D) refers to contractions during labor, which are not directly related to regulating fetal heart rate. Thus, A is correct as it directly influences heart rate regulation.
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The nurse is reviewing an electronic fetal monitor tracing from a patient in active labor and notes the fetal heart rate gradually drops to 20 beats per minute (bpm) below the baseline and returns to the baseline well after the completion of the patient's contractions. How will the nurse document these findings?
- A. Late decelerations
- B. Early decelerations
- C. Variable decelerations
- D. Proximal decelerations
Correct Answer: B
Rationale: The correct answer is B: Early decelerations. Early decelerations occur in response to fetal head compression during contractions, resulting in a gradual decrease in the fetal heart rate that mirrors the timing of contractions. In this scenario, the fetal heart rate drops to 20 bpm below the baseline during contractions and returns to baseline after contractions, indicating a benign pattern. Late decelerations (choice A) occur after the peak of the contraction and are associated with uteroplacental insufficiency. Variable decelerations (choice C) are abrupt decreases in fetal heart rate without a consistent timing in relation to contractions, often due to cord compression. Proximal decelerations (choice D) are not a recognized classification of decelerations in fetal monitoring.
The nurse-manager on a labor and delivery unit is monitoring the reasons for cesarean births at the facility. Which reasons contribute to the high rates of cesarean births? Select all that apply.
- A. Fetuses in breech position unable to deliver vaginally
- B. Increased number of elective or maternal request cesareans
- C. Incidences of women of older maternal age getting pregnant
- D. Decreasing rate of malpractice litigation with cesarean birth
Correct Answer: B
Rationale: The correct answer is B: Increased number of elective or maternal request cesareans. This is correct because the rise in elective cesarean births, often due to patient preference or convenience, can contribute to the overall high rates of cesarean births.
A: Fetuses in breech position unable to deliver vaginally - This is a valid reason for cesarean births, but it does not address the question about high rates of cesarean births.
C: Incidences of women of older maternal age getting pregnant - While advanced maternal age can be a factor in cesarean births, it is not directly related to the high rates of cesarean births at the facility.
D: Decreasing rate of malpractice litigation with cesarean birth - This is an irrelevant factor in determining the reasons for high rates of cesarean births at the facility.
Following a cesarean birth, intrathecal morphine is administered to the patient for postoperative pain management. Of which fact about intrathecal morphine therapy is the nurse aware? Select all that apply.
- A. An anesthesiologist or CRNA administers it intrathecally.
- B. The nurse needs to closely monitor for common side effects.
- C. The drug produces generalized CNS depression.
- D. The recommended dose is 10 to 15 mg.
Correct Answer: B
Rationale: The correct answer is B: The nurse needs to closely monitor for common side effects.
1. Intrathecal morphine can lead to side effects such as respiratory depression, nausea, vomiting, and pruritus.
2. Monitoring for these side effects is crucial for early detection and intervention.
3. Anesthesiologists or CRNAs typically administer intrathecal morphine, not nurses.
4. Intrathecal morphine primarily acts locally at the spinal cord level, not producing generalized CNS depression.
5. The recommended dose of intrathecal morphine is typically much lower than 10-15 mg to avoid overdose and side effects.
Decelerations that mirror the contractions are present with each contraction on the monitor strip of a multipara who received epidural anesthesia 20 minutes ago. The nurse should
- A. maintain the normal assessment routine
- B. administer O at 8 to 10 L/minute by face mask.
- C. increase the IV flow rate from 125 to 150 mL/hour.
- D. assess the maternal blood pressure for a systolic pressure below 100 mm Hg.
Correct Answer: A
Rationale: The correct answer is A: maintain the normal assessment routine. Decelerations mirroring contractions in a multipara with epidural anesthesia likely indicate normal physiologic response to labor. There is no indication of fetal distress. Administering O2 (B) is unnecessary as there is no indication of maternal hypoxemia. Increasing IV flow rate (C) is not necessary if there are no signs of hypovolemia. Assessing maternal blood pressure (D) for hypotension is not relevant without other signs of maternal compromise. Maintaining the normal assessment routine ensures ongoing monitoring and evaluation of both mother and baby without unnecessary interventions.
What is one potential fetal complication of using the vacuum extractor?
- A. cephalohematoma
- B. face presentation
- C. fetal growth restriction
- D. scalp fracture
Correct Answer: A
Rationale: The correct answer is A: cephalohematoma. When using a vacuum extractor during childbirth, the device applies suction to the baby's head to assist with delivery. This suction can cause a collection of blood between the baby's skull and periosteum, resulting in a cephalohematoma. This complication is due to the pressure exerted on the baby's head during the extraction process. Cephalohematoma is a common side effect of vacuum extraction and typically resolves on its own. Face presentation and fetal growth restriction are not directly related to the use of a vacuum extractor. Scalp fracture is a rare but serious complication that can occur if excessive force is applied during vacuum extraction, leading to bone injury, which is different from the collection of blood in a cephalohematoma.