Labor and Delivery Practice Questions

Q: When in labor, a diagnosis of occipito-posterior presentation is made. The most appropriate management would be:

Wait and watch for progress of labor. ***Wait and watch for progress of labor*** - Many **occipito-posterior (OP) presentations** will spontaneously rotate to an occipito-anterior (OA) position with ongoing contractions, especially in multiparous women. - Close monitoring of fetal well-being and labor progress is essential, but immediate intervention is not always required. *Emergency CS* - An emergency cesarean section is typically reserved for cases where there is **fetal distress**, **failure to progress** after a reasonable period of observation, or other clear obstetric indications. - An OP presentation alone, without complications, does not warrant an immediate CS. *Early rupture of membranes* - While sometimes used to evaluate cervical dilation or apply a fetal scalp electrode, **early artificial rupture of membranes (AROM)** in OP presentation is not a definitive management strategy. - It may even increase the risk of cord prolapse or ascending infection without necessarily expediting rotation. *Start oxytocin drip* - **Oxytocin augmentation** may be considered if contractions are inadequate and labor is prolonged, but it's not the first-line management for OP presentation itself. - It should only be initiated after assessing the power, passage, and passenger, and ensuring there are no contraindications to augmentation.

Q: What is the PRIMARY immediate cause of death associated with uterine inversion?

Severe hemorrhage. ***Severe hemorrhage*** - Uterine inversion leads to significant tearing and exposure of highly vascular uterine tissue, resulting in massive and **rapid blood loss**. - This acute blood loss causes **hypovolemic shock**, which is the primary immediate cause of death if not promptly managed. - **Note:** Neurogenic shock (from vagal stimulation due to traction on uterine ligaments) also occurs immediately with uterine inversion, but **hemorrhagic shock** is the predominant cause of mortality. *Cardiogenic shock* - This type of shock is caused by the heart's inability to pump adequate blood, often due to conditions like **myocardial infarction** or severe heart failure. - While hemorrhage can eventually affect cardiac function, **cardiogenic shock** is not the primary or immediate cause of death in uterine inversion. *Acute respiratory distress syndrome* - **ARDS** is a severe lung condition characterized by widespread inflammation and fluid accumulation in the lungs, typically occurring secondary to sepsis, severe trauma, or prolonged shock. - It is not an immediate consequence of uterine inversion but could potentially develop as a complication of prolonged shock or severe infection if the patient survives the initial hemorrhage. *Sepsis* - **Sepsis** is a life-threatening condition caused by the body's overwhelming response to an infection. - While uterine inversion can increase the risk of infection if treatment is delayed, **sepsis** is a delayed complication rather than an immediate cause of death.

Q: After delivery of the body in breech presentation, extraction of the aftercoming head will be difficult in all of the following conditions except:

Placenta previa. ***Placenta previa*** - **Placenta previa** primarily affects the vaginal delivery by obstructing the birth canal and risking severe hemorrhage, but it does not directly interfere with the **mechanical difficulty** of delivering the head of a breech baby once it has "cornered" or descended past the ischial spines. - While placenta previa makes any vaginal delivery more dangerous, it does not inherently make the *head maneuver* itself more difficult in the same way as conditions altering head size or cervical opening. *Hydrocephalus* - **Hydrocephalus** involves an abnormally enlarged fetal head due to excessive cerebrospinal fluid, which would significantly increase the disparity between the head size and the maternal pelvis, making delivery of the head after the body has delivered much more difficult. - The increased **biparietal diameter** in hydrocephalus poses a major mechanical obstruction during head extraction in a breech delivery. *Incomplete dilation of cervix* - If the **cervix is not fully dilated** when the body of a breech baby delivers, the undilated cervix can trap the fetal head (a condition known as a **head entrapment**), making its delivery extremely difficult and potentially causing fetal distress or injury. - This scenario specifically creates a mechanical obstruction for head delivery because the opening is insufficient to accommodate the largest part of the fetus. *Extension of head* - An **extended fetal head** (where the head is tilted backward, presenting the occiput) increases the effective diameter of the head that must pass through the pelvis, making delivery significantly more difficult. - Optimal head delivery in breech presentation requires the fetal head to be **flexed** to present the smallest possible diameter; extension eliminates this advantage and creates a larger, more difficult presentation.

Q: Active management of 3rd stage of labour involves all EXCEPT:

Uterine massage. ***Uterine massage*** - **Uterine massage** is performed *after* the delivery of the placenta to promote sustained uterine contraction and prevent **postpartum hemorrhage**. - While it's a crucial step in preventing excessive bleeding, it is not considered part of the *active management of the third stage of labor* as defined by WHO guidelines, which focuses on interventions *during* placental separation and expulsion. - Uterine massage is part of **routine postpartum care** rather than AMTSL itself. *IV oxytocin* - Administering **prophylactic uterotonic** (oxytocin 10 IU IM/IV) *immediately* after birth of the baby (within 1 minute) is a **core component** of active management. - Oxytocin stimulates uterine contractions to aid placental separation and significantly **reduces postpartum hemorrhage** risk. *Delayed cord clamping* - **Delayed cord clamping** (clamping the umbilical cord between 1-3 minutes after birth) is recommended by **current WHO guidelines** as part of active management. - This practice provides neonatal benefits (improved iron stores, better hemoglobin levels) while not increasing maternal hemorrhage risk. - This replaced the older practice of early cord clamping in modern AMTSL protocols. *Controlled cord traction* - **Controlled cord traction** with **counter-traction on the uterus** (Brandt-Andrews maneuver) is performed to facilitate placental delivery once signs of placental separation appear. - This maneuver **reduces the duration of third stage**, blood loss, and risk of retained placenta.

Q: A patient went into shock immediately after a normal delivery; the most likely cause is:

PPH. ***PPH (Postpartum Hemorrhage)*** - **Postpartum hemorrhage (PPH)** is the **most common cause of shock immediately after delivery**, occurring in 3-5% of all deliveries. - PPH is defined as blood loss of 500 mL or more after vaginal birth (1000 mL after cesarean), potentially leading to **hypovolemic shock** if not quickly managed. - It is the **leading cause of maternal mortality worldwide** and accounts for approximately 25% of all maternal deaths globally. *Amniotic fluid embolism* - This rare and life-threatening condition involves amniotic fluid entering the maternal circulation, causing a sudden onset of **cardiorespiratory collapse** and **coagulopathy**. - While it can cause immediate shock, it is **extremely rare** (1 in 40,000 deliveries), making it much less likely than PPH statistically. - Typically presents with more acute and severe respiratory distress, cyanosis, and cardiovascular compromise. *Uterine inversion* - While a severe obstetric emergency causing significant blood loss and shock, uterine inversion is **rare** (1 in 2,000-20,000 deliveries). - It involves the **uterus turning inside out** and is usually evident on clinical examination with a visible mass at the introitus. - Less frequent than PPH overall as a cause of immediate post-delivery shock. *Eclampsia* - Eclampsia is characterized by **new-onset grand mal seizures** in a woman with pre-eclampsia, typically occurring before, during, or after labor. - While it can cause cardiovascular compromise, it is **not a primary cause of immediate hemorrhagic shock** following an otherwise normal delivery. - Shock in eclampsia occurs through mechanisms like cerebral edema and hypertensive crisis rather than volume loss.

Q: Total uterine activity during normal labor is measured as 190-300 units over a 10-minute period. Which unit is being referred to here?

Montevideo units. ***Montevideo units*** - Montevideo units (MVUs) are a measure of **uterine contraction intensity** over a 10-minute period, multiplied by the number of contractions. - A value between **190-300 MVUs** is generally considered adequate for effective labor progression. *mm of Hg* - **mmHg (millimeters of mercury)** is typically used to measure **blood pressure** and other physiological pressures. - While uterine contraction strength can be measured in mmHg directly, the combined measure over time is expressed as MVUs. *cm of water* - **cm of water** is a unit of pressure primarily used in measuring **cerebrospinal fluid pressure** or central venous pressure. - It is not the standard unit for quantifying uterine contraction strength in the context of normal labor. *Joules /kg* - **Joules per kilogram (J/kg)** is a unit of **specific energy** or specific enthalpy. - It describes the energy content per unit mass and is not relevant to measuring uterine contraction pressure.

Q: What is considered an abnormal fetal scalp blood pH level that necessitates urgent intervention?

pH 7.15. ***pH 7.15*** - A fetal scalp blood pH of **7.15** (representing pH <7.20) indicates **significant fetal acidosis** and requires **urgent intervention**, such as expedited delivery. - The critical threshold is **pH <7.20**; values below this suggest **fetal compromise** with high risk of adverse neonatal outcomes, necessitating immediate action. - pH values **<7.15** are considered **severe acidosis** requiring emergency delivery. *pH 7.4* - A pH of 7.4 is considered a **normal** and healthy fetal scalp blood pH (normal range: 7.25-7.35). - This indicates **no acidosis or compromise**, with the fetus being well-oxygenated. *pH 7.3* - A pH of 7.3 is within the **normal range** (7.25-7.35) for fetal scalp blood. - This represents **adequate fetal oxygenation** with no intervention required. *pH 7.35* - A pH of 7.35 is at the **upper end of the normal physiological range** for fetal scalp blood. - This level indicates **excellent fetal oxygenation** and acid-base balance with no interventions required.

Q: The definite sign of placental separation in stage 3 of parturition is

Lengthening of cord. ***Lengthening of cord*** - As the placenta detaches from the uterine wall and descends, the **umbilical cord will appear to lengthen** at the vulva, indicating that it has partially or fully entered the lower uterine segment or vagina. - This lengthening is a direct physical sign that the placenta has separated and is moving out of the uterus, making it a **definitive sign** of placental separation. *Uterine contraction* - **Uterine contractions** are necessary for placental separation, as they reduce the size of the placental bed, causing it to detach. - However, contractions alone do not definitively prove separation; the placenta may still be attached even with strong contractions. *Increase of BP* - An **increase in blood pressure (BP)** is not a direct or reliable sign of placental separation. - Blood pressure changes during labor and the third stage can be influenced by various factors, including pain, anxiety, and medication, making it an unreliable indicator. *Descent of placenta into vagina* - While the **descent of the placenta into the vagina** is a sign that separation has occurred, it is a later event. - The crucial "definite sign" of *separation* itself is often observed earlier via the lengthening of the cord and a gush of blood, indicating that detachment has occurred within the uterus.

Q: True labor pain includes all of the following except.

Formation of the bag of waters. ***Formation of the bag of waters*** - The **bag of waters** (amniotic sac) forms during pregnancy, not during labor itself. Its formation is not a component or feature of true labor. - While **rupture of membranes** may occur during labor, the formation of the bag of waters happens well before labor begins. - This is the correct answer as it is NOT included in true labor pain characteristics. *Painful uterine contractions* - **Painful, regular uterine contractions** are the hallmark of true labor, distinguishing it from false labor (Braxton Hicks contractions). - These contractions progressively increase in frequency, intensity, and duration, and are not relieved by rest or position changes. *Cervical dilation* - **Cervical dilation** (and effacement) is the most critical diagnostic criterion for true labor, representing progressive physiological changes. - True labor always leads to measurable cervical changes, unlike false labor. *Show (mucus plug discharge)* - The **"show"** refers to the passage of blood-tinged mucus from the cervical canal as it begins to dilate and efface. - This is a classic sign of true labor onset and represents the dislodgement of the mucus plug that sealed the cervical canal during pregnancy.

Q: A 25-year-old, 2nd gravida arrives in the labor room at full dilation. Which of the following practices is contraindicated at this stage of labor?

Liberal prophylactic use of ergometrine. ***Liberal prophylactic use of ergometrine*** - **Ergometrine is CONTRAINDICATED at full dilation** (second stage of labor) because it causes **strong, sustained tetanic uterine contractions**. - If given before delivery of the baby, these tetanic contractions can: - **Trap the fetus** inside the uterus - Compromise **uteroplacental blood flow** leading to fetal hypoxia - Increase risk of **uterine rupture** - Impede normal progress of labor - Ergometrine is reserved for **third stage management** (after delivery of baby) for prevention of postpartum hemorrhage, NOT for use during active labor at full dilation. - **Oxytocin** is preferred over ergometrine even in third stage due to better safety profile. *Cord blood to be saved in 2 tubes - plain & EDTA* - Collecting **cord blood** for banking or analysis is not contraindicated at full dilation. - This is routinely done at the time of delivery using appropriate collection tubes (plain for serum studies, EDTA for cell counts). - This practice does not interfere with labor management. *Early clamping of cord* - While **delayed cord clamping** (30-60 seconds) is now preferred for improved neonatal outcomes (better iron stores, higher hemoglobin levels), early clamping is **not contraindicated**. - Early clamping may still be indicated in specific situations such as need for immediate neonatal resuscitation, placental abruption, or maternal instability. - The timing of cord clamping is decided at delivery, not at full dilation. *Avoidance of manual removal of placenta* - **Manual removal of placenta** is reserved for retained placenta (failure to deliver within 30 minutes after baby) that doesn't respond to conservative management. - Avoiding unnecessary manual removal reduces risk of infection, hemorrhage, and uterine trauma. - This is appropriate management, not a contraindicated practice at full dilation.

Question 1

When in labor, a diagnosis of occipito-posterior presentation is made. The most appropriate management would be:

Accepted Answer

Wait and watch for progress of labor

Answer

Emergency CS

Answer

Early rupture of membranes

Answer

Start oxytocin drip

Question 2

What is the PRIMARY immediate cause of death associated with uterine inversion?

Accepted Answer

Severe hemorrhage

Answer

Cardiogenic shock

Answer

Acute respiratory distress syndrome

Answer

Sepsis

Question 3

After delivery of the body in breech presentation, extraction of the aftercoming head will be difficult in all of the following conditions except:

Accepted Answer

Placenta previa

Answer

Hydrocephalus

Answer

Incomplete dilation of cervix

Answer

Extension of head

Question 4

Active management of 3rd stage of labour involves all EXCEPT:

Accepted Answer

Uterine massage

Answer

IV oxytocin

Answer

Delayed cord clamping

Answer

Controlled cord traction

Question 5

A patient went into shock immediately after a normal delivery; the most likely cause is:

Accepted Answer

PPH

Answer

Amniotic fluid embolism

Answer

Eclampsia

Answer

Uterine inversion

Question 6

Total uterine activity during normal labor is measured as 190-300 units over a 10-minute period. Which unit is being referred to here?

Accepted Answer

Montevideo units

Answer

mm of Hg

Answer

cm of water

Answer

Joules /kg

Question 7

What is considered an abnormal fetal scalp blood pH level that necessitates urgent intervention?

Accepted Answer

pH 7.15

Answer

pH 7.4

Answer

pH 7.3

Answer

pH 7.35

Question 8

The definite sign of placental separation in stage 3 of parturition is

Accepted Answer

Lengthening of cord

Answer

Uterine contraction

Answer

Increase of BP

Answer

Descent of placenta into vagina

Question 9

True labor pain includes all of the following except.

Accepted Answer

Formation of the bag of waters

Answer

Painful uterine contraction

Answer

Cervical dilation

Answer

Show (mucus plug discharge)

Question 10

A 25-year-old, 2nd gravida arrives in the labor room at full dilation. Which of the following practices is contraindicated at this stage of labor?

Accepted Answer

Liberal prophylactic use of ergometrine

Answer

Cord blood to be saved in 2 tubes - plain & EDTA

Answer

Early clamping of cord

Answer

Avoidance of manual removal of placenta

Labor and Delivery — MCQs

Labor and Delivery — MCQs

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