Labor and Delivery Practice Questions

Q: Which method is most appropriate for cervical ripening in a term pregnancy with oligohydramnios and reactive NST?

Foley catheter. **Foley catheter** - **Mechanical methods** like the Foley catheter are preferred for cervical ripening in the presence of **oligohydramnios** because they do not carry the risk of inducing uterine hyperstimulation, which can further compromise fetal well-being. - The reactive non-stress test (NST) indicates the fetus is currently healthy, but oligohydramnios suggests a need to minimize any potential stress, making mechanical ripening a safer choice. *Dinoprostone gel 0.5mg* - **Prostaglandins** like dinoprostone can increase the risk of **uterine hyperstimulation**, which could be particularly dangerous for a fetus with oligohydramnios as it restricts blood flow and oxygen. - While effective for ripening, the risk profile is higher compared to mechanical methods when fetal compromise (like oligohydramnios) is present. *Misoprostol 25mcg vaginal* - **Misoprostol** is a potent prostaglandin analog that carries a significant risk of **uterine tachysystole** and hyperstimulation. - In cases with **oligohydramnios**, any drug-induced increase in uterine activity could further strain fetal oxygenation and well-being. *Oxytocin infusion* - **Oxytocin** is primarily used for **induction of labor** (to stimulate contractions) and not for cervical ripening directly. - Initiating oxytocin without a ripened cervix is less effective and carries a higher risk of failed induction and potentially C-section, and it does not address the need for cervical changes first.

Q: True about uterine rupture during labor:

Occurs more with previous cesarean. ***Occurs more with previous cesarean*** - A prior **cesarean section** poses a significant risk factor for uterine rupture during subsequent labors due to the presence of a uterine scar that can dehisce. - The risk of uterine rupture increases with the number of previous C-sections, especially in cases of short inter-pregnancy intervals or specific types of uterine incisions. *Not associated with fetal distress* - **Fetal distress** is a very common and critical sign of uterine rupture, often manifesting as sudden **severe bradycardia** or **late decelerations** due to placental compromise or direct fetal injury. - The disruption of the uterine wall can lead to **hypoxia, acidosis, and fetal demise** if not urgently addressed. *Best treated conservatively* - **Uterine rupture is a medical emergency** requiring **immediate surgical intervention**, typically a **laparotomy** for repair of the uterus and delivery of the fetus. - Conservative management is generally inappropriate and can lead to **severe maternal hemorrhage, fetal anoxia, and death** due to rapid blood loss and lack of oxygen to the fetus. *Always causes pain* - While often accompanied by **sudden, severe abdominal pain**, uterine rupture can sometimes present with less obvious symptoms, particularly if it's a **dehiscence of an old scar** without complete rupture. - In some cases, the primary sign might be **fetal distress** or **vaginal bleeding** with minimal maternal pain, especially if the mother has an **epidural analgesia** in place masking pain.

Q: A 29-year-old woman at 39 weeks of gestation presents with spontaneous rupture of membranes and meconium-stained amniotic fluid. What is the most appropriate initial step in management?

Fetal heart rate monitoring. ***Fetal heart rate monitoring*** - The presence of **meconium-stained amniotic fluid** necessitates immediate assessment of **fetal well-being** to rule out **fetal distress**. - **Continuous fetal heart rate monitoring** helps identify potential complications like **cord compression** or **fetal hypoxemia**, guiding subsequent management. *Immediate induction of labor* - While delivery will be planned, **immediate induction** is not the *first* step; initial assessment of fetal status is more critical. - Induction might be considered after fetal assessment, but only if the cervix is favorable and there are no signs of severe distress. *Expectant management* - **Expectant management** is inappropriate with **meconium-stained amniotic fluid** due to the increased risk of **meconium aspiration syndrome** and fetal distress. - Close monitoring and prompt intervention are essential to ensure fetal and neonatal safety. *Cesarean section* - A **Cesarean section** might be indicated if severe **fetal distress** is identified, but it is not the *initial* step without prior fetal assessment. - Many cases of meconium-stained fluid can still result in a vaginal delivery with appropriate monitoring and supportive care.

Q: A primigravida at 39 weeks presents in active labor with cervical dilation of 6 cm, regular contractions every 3-4 minutes, and no progress in cervical dilation after 4 hours. What is the most appropriate management?

Oxytocin augmentation. ***Oxytocin augmentation*** - This patient is experiencing **active phase arrest**, defined as cervical dilation of 6 cm or more with ruptured membranes and no cervical change for **4 hours with adequate contractions**, or **6 hours with inadequate contractions**. - The contractions occurring every 3-4 minutes suggest **suboptimal uterine activity** for active labor progression (optimal is every 2-3 minutes). - **Oxytocin augmentation** is the appropriate first-line management to improve contraction frequency and intensity, promoting cervical dilation. - Before proceeding to cesarean section, augmentation should be attempted unless there are contraindications. *Amniotomy* - **Amniotomy** can augment labor if membranes are intact, but it is **less effective than oxytocin** for managing active phase arrest. - If membranes are already ruptured, amniotomy is not an option. - Oxytocin provides more controlled and predictable augmentation of labor. *Emergency cesarean section* - Cesarean section is indicated when **oxytocin augmentation fails** after adequate trial, or when there are maternal/fetal compromise or suspected cephalopelvic disproportion. - Since augmentation has not been attempted, proceeding directly to cesarean section would be premature. - Current guidelines recommend attempting augmentation before surgical intervention in the absence of urgent indications. *Expectant management* - **Expectant management** is inappropriate as the patient has met criteria for active phase arrest requiring intervention. - Prolonged labor without intervention increases risks of **maternal exhaustion, chorioamnionitis, and fetal compromise**. - Active intervention is necessary to promote safe labor progression.

Q: What is the first step in the management of a prolapsed umbilical cord during labor?

Positioning the mother in a knee-chest position. ***Positioning the mother in a knee-chest position*** - The immediate priority in a prolapsed umbilical cord is to **relieve pressure on the cord** to maintain fetal oxygenation. - The **knee-chest position** (or Trendelenburg or modified Sims position) uses gravity to shift the fetus away from the cervix, thus reducing compression on the cord. *Immediate emergency cesarean section* - While an emergency cesarean section is the definitive management for delivery once the cord prolapse is diagnosed, it is not the **first step**. - Relieving cord compression must happen *before* or concurrently with preparations for surgery to prevent **fetal hypoxia** and death. *Administration of tocolytics as needed* - Tocolytics (medications to stop uterine contractions) may be considered *after* relieving cord compression to inhibit contractions and reduce further cord compression during preparations for delivery. - However, they are not the initial, primary response to **alleviate cord compression**. *Manual reduction of the cord if possible* - **Manual reduction of the umbilical cord** is generally **contraindicated** due to the risk of inducing vasospasm or further cord compression, which can worsen fetal compromise. - The primary goal is to keep the cord uncompressed and outside the birth canal while preparing for delivery.

Q: Compare the immediate management options for umbilical cord prolapse in a term pregnancy with an abnormal fetal heart rate. Which intervention is most likely to prevent fetal hypoxia?

Manual elevation of the presenting part. ***Manual elevation of the presenting part*** - This intervention **relieves compression** on the umbilical cord, immediately restoring blood flow and preventing further fetal hypoxia. - It serves as a **bridging measure** to gain time for an emergency delivery, typically a cesarean section. *Emergency cesarean section* - While the definitive treatment for delivery with cord prolapse, it is **not the *immediate* action** to prevent hypoxia; manual elevation must precede it to stabilize the fetus. - The surgical preparation and execution take time, during which **fetal oxygenation** must be maintained. *Tocolysis* - Administering **tocolytics** (drugs to relax the uterus) may be considered to reduce uterine contractions, which can worsen cord compression. - However, it is a **secondary measure** that does not directly relieve cord compression as effectively as manual elevation. *Amnioinfusion* - This procedure involves infusing saline into the amniotic cavity, primarily used for **variable decelerations** due to cord compression not associated with prolapse, or meconium dilution. - It is **not effective** for the immediate relief of a prolapsed umbilical cord, as it does not address the physical compression.

Q: What is the best initial treatment for a prolapsed umbilical cord discovered during labor?

Elevating the presenting part. ***Elevating the presenting part*** - Elevating the presenting part (e.g., using a **gloved hand** to push the fetal head off the cord) is the immediate action to relieve pressure on the prolapsed umbilical cord and prevent **fetal hypoxia**. - This maneuver is crucial while preparing for an **emergency cesarean delivery**, which is the definitive treatment. *Cesarean delivery* - While an **emergency cesarean delivery** is the definitive management for a prolapsed umbilical cord, it is not the *initial* action. - The immediate priority is to **alleviate cord compression** before the surgical procedure can be performed. *Manual repositioning of the cord* - Attempting to manually push the cord back into the uterus is generally **not recommended** due to the risk of further compressing the cord, introducing infection, or causing trauma. - The goal is to relieve pressure on the cord, not necessarily to return it to its original position. *Administration of tocolytics* - **Tocolytics** are medications used to relax the uterus and inhibit contractions, which might be considered in some scenarios to reduce pressure on the cord. - However, elevating the presenting part mechanically is a more direct and immediate action to relieve **cord compression** and is the priority while waiting for tocolytics to take effect or for a C-section.

Q: Which factor is the most predictive of successful labor induction in a full-term primigravida?

Bishop score. ***Bishop score*** - The **Bishop score** is a pre-labor scoring system used to determine the likelihood of **successful vaginal delivery** after induction. - A higher Bishop score indicates a **more favorable cervix** and therefore a greater chance of successful induction. *Cervical readiness* - While cervical readiness is crucial for successful induction, the **Bishop score is the standardized tool** used to quantitatively assess and predict this readiness. - It integrates several elements of cervical status, rather than just a general "readiness." *Fetal size* - **Fetal size** can impact the ease of labor progression but is not the primary determinant of whether an **induction will be successful in initiating labor**. - A very large fetus (macrosomia) can lead to labor complications but does not directly predict the initial success of induction itself. *Amniotic fluid assessment* - **Amniotic fluid assessment** (e.g., amniotic fluid index) is important for evaluating **fetal well-being** and identifying complications like oligohydramnios or polyhydramnios. - However, it does not directly predict the success of labor induction in terms of cervical response or uterine contractility.

Q: Which diagnostic test is preferred for confirming the diagnosis of intra-amniotic infection during labor?

Amniocentesis. ***Amniocentesis*** - **Amniocentesis** allows for direct collection of amniotic fluid, which can then be tested for bacterial growth, white blood cell count, glucose levels (decreased due to bacterial metabolism), and inflammatory markers such as interleukin-6. - This provides definitive laboratory evidence of infection within the amniotic cavity, confirming **intra-amniotic infection (IAI)**. - It is considered the gold standard confirmatory test when laboratory confirmation is needed, though clinical diagnosis is more commonly used in practice. *Maternal blood culture* - A maternal blood culture can detect systemic maternal infection but does not directly confirm the presence of intra-amniotic infection. - It is often negative even when IAI is present, as the infection may be localized to the amniotic sac. *Fetal heart rate monitoring* - Fetal heart rate monitoring can show signs of fetal distress, such as tachycardia, which may be a consequence of intra-amniotic infection, but it does not confirm the infection itself. - Fetal heart rate abnormalities can be caused by various other factors, making it a non-specific indicator for IAI. *Clinical diagnosis based on maternal symptoms and signs* - While maternal fever, uterine tenderness, tachycardia, and purulent vaginal discharge are strong indicators of suspected intra-amniotic infection, clinical diagnosis in traditional teaching is considered presumptive rather than definitive confirmation. - Amniocentesis provides objective laboratory evidence, distinguishing true infection from other febrile conditions during labor from a diagnostic standpoint.

Q: A 28-year-old primigravida at 40 weeks of gestation is in active labor with persistent late decelerations and minimal baseline variability on fetal heart rate monitoring. What is the most appropriate next step?

Emergency cesarean section. ***Emergency cesarean section*** - **Persistent late decelerations** and **minimal baseline variability** are ominous signs of **fetal distress** due to uteroplacental insufficiency, warranting immediate delivery. - An **emergency cesarean section** is the most rapid and effective method to deliver the fetus and prevent potential morbidity or mortality. *Continue labor with close monitoring* - Continuing labor with these findings would put the fetus at significant risk, as **late decelerations** indicate **fetal hypoxia** and **acidosis**. - **Close monitoring** alone is insufficient when there are clear signs of ongoing serious fetal compromise. *Amnioinfusion* - **Amnioinfusion** is primarily used for **variable decelerations** caused by **cord compression**, not late decelerations which signify uteroplacental insufficiency. - It would not address the underlying pathology causing the **late decelerations** or the **minimal variability**. *Fetal scalp stimulation* - **Fetal scalp stimulation** is used to assess fetal reserve, but it is contraindicated or ineffective in the presence of **persistent late decelerations** and **minimal variability**. - A lack of acceleration in response to stimulation in this context often indicates severe fetal compromise, underscoring the need for immediate intervention rather than further assessment.

Question 1

Which method is most appropriate for cervical ripening in a term pregnancy with oligohydramnios and reactive NST?

Accepted Answer

Foley catheter

Answer

Dinoprostone gel 0.5mg

Answer

Misoprostol 25mcg vaginal

Answer

Oxytocin infusion

Question 2

True about uterine rupture during labor:

Accepted Answer

Occurs more with previous cesarean

Answer

Not associated with fetal distress

Answer

Best treated conservatively

Answer

Always causes pain

Question 3

A 29-year-old woman at 39 weeks of gestation presents with spontaneous rupture of membranes and meconium-stained amniotic fluid. What is the most appropriate initial step in management?

Accepted Answer

Fetal heart rate monitoring

Answer

Immediate induction of labor

Answer

Expectant management

Answer

Cesarean section

Question 4

A primigravida at 39 weeks presents in active labor with cervical dilation of 6 cm, regular contractions every 3-4 minutes, and no progress in cervical dilation after 4 hours. What is the most appropriate management?

Accepted Answer

Oxytocin augmentation

Answer

Amniotomy

Answer

Emergency cesarean section

Answer

Expectant management

Question 5

What is the first step in the management of a prolapsed umbilical cord during labor?

Accepted Answer

Positioning the mother in a knee-chest position

Answer

Immediate emergency cesarean section

Answer

Administration of tocolytics as needed

Answer

Manual reduction of the cord if possible

Question 6

Compare the immediate management options for umbilical cord prolapse in a term pregnancy with an abnormal fetal heart rate. Which intervention is most likely to prevent fetal hypoxia?

Accepted Answer

Manual elevation of the presenting part

Answer

Emergency cesarean section

Answer

Tocolysis

Answer

Amnioinfusion

Question 7

What is the best initial treatment for a prolapsed umbilical cord discovered during labor?

Accepted Answer

Elevating the presenting part

Answer

Cesarean delivery

Answer

Manual repositioning of the cord

Answer

Administration of tocolytics

Question 8

Which factor is the most predictive of successful labor induction in a full-term primigravida?

Accepted Answer

Bishop score

Answer

Cervical readiness

Answer

Fetal size

Answer

Amniotic fluid assessment

Question 9

Which diagnostic test is preferred for confirming the diagnosis of intra-amniotic infection during labor?

Accepted Answer

Amniocentesis

Answer

Maternal blood culture

Answer

Fetal heart rate monitoring

Answer

Clinical diagnosis based on maternal symptoms and signs

Question 10

A 28-year-old primigravida at 40 weeks of gestation is in active labor with persistent late decelerations and minimal baseline variability on fetal heart rate monitoring. What is the most appropriate next step?

Accepted Answer

Emergency cesarean section

Answer

Continue labor with close monitoring

Answer

Amnioinfusion

Answer

Fetal scalp stimulation

Labor and Delivery — MCQs

Labor and Delivery — MCQs

On this page

Practice by Chapter

Want unlimited practice?