Labor and Delivery — MCQs

A G2P1L1 woman with a previous lower segment cesarean section (LSCS) presents at 37 weeks gestation with a blood pressure of 150/100 mm Hg. The cardiotocography (CTG) is reactive, and her per vaginum (P/V) findings are: os closed, cervix partially effaced, soft, midline, vertex at -2 station, and the pelvis is adequate. Urine protein by dipstick is 1+. What is the management?

Q415Easy

Which of the following is a side effect of magnesium sulfate?

Q416Medium

Which of the following is true regarding postpartum hemorrhage (PPH)?

Q417Medium

A pregnant woman presents with a major degree placenta previa and a malformed fetus. What is the best management approach?

Q418Easy

What is the name of the following manoeuvre?

Q419Medium

Disseminated intravascular coagulation is present in all of the following conditions except:

Q420Easy

Late deceleration in fetal heart rate monitoring indicates:

Labor and Delivery Indian Medical PG Practice Questions and MCQs

Question 411: In breech presentation, engagement occurs earliest in which type?

A. Frank breech (Correct Answer)
B. Complete breech
C. Knee breech
D. Footling breech

Explanation: **Explanation:** In breech presentation, **engagement** is defined as the passage of the bitrochanteric diameter (10 cm) through the pelvic inlet. **Why Frank Breech is Correct:** In a **Frank breech** (extended breech), the thighs are flexed and the legs are extended at the knees. This configuration creates a firm, compact, and wedge-like presenting part. The buttocks act as a more effective dilator of the cervix compared to other breech types. Because the lower extremities are tucked away from the pelvis, the bitrochanteric diameter can descend into the pelvic brim more efficiently and earlier in labor (or even in late pregnancy in primigravidae). **Why the other options are incorrect:** * **Complete Breech:** Here, both thighs and legs are flexed (criss-cross position). This creates a bulky, irregular presenting part that is less "streamlined" than the frank breech, often delaying engagement until labor is well-established. * **Footling and Knee Breech (Incomplete Breech):** In these types, one or both feet/knees are the lowermost parts. These are narrow, irregular, and do not fill the lower uterine segment effectively. Engagement of the bitrochanteric diameter occurs much later, often only after significant descent of the prolapsed limb. **High-Yield NEET-PG Pearls:** * **Most common type:** Frank breech is the most common variety (approx. 70%), especially in term primigravidae. * **Cord Prolapse Risk:** The risk is **lowest in Frank breech** (0.5%) because the buttocks fit snugly against the cervix. It is **highest in Footling breech** (15-20%) due to the irregular fit. * **Diameter of Engagement:** The engaging diameter in breech is the **Bitrochanteric diameter (10 cm)**. * **Maneuver for Frank Breech:** Pinard’s maneuver is used to deliver the extended legs in a frank breech.

Question 412: Stillbirth is defined as the birth of a dead newborn child after how many completed weeks of gestation?

A. 20
B. 28 (Correct Answer)
C. 37
D. 40

Explanation: **Explanation:** The definition of **Stillbirth** varies globally based on the criteria used (WHO vs. National guidelines). In the context of the Indian healthcare system and the National Health Mission (NHM), stillbirth is defined as a baby born with no signs of life at or after **28 completed weeks of gestation**. **1. Why 28 weeks is correct:** In India, the legal and clinical threshold for "viability" (the ability of the fetus to survive outside the womb) is traditionally considered 28 weeks. Any fetal death occurring after this period but before birth is classified as a stillbirth. This aligns with the International Classification of Diseases (ICD-10) recommendation for international reporting. **2. Analysis of Incorrect Options:** * **20 weeks (Option A):** This is the threshold used in many developed countries (like the USA) where neonatal intensive care is more advanced. In India, fetal loss before 20–22 weeks is generally classified as an **Abortion (Miscarriage)**. * **37 weeks (Option B):** This marks the beginning of **Term** pregnancy. A fetal death between 28 and 37 weeks is a preterm stillbirth, while after 37 weeks, it is a term stillbirth. * **40 weeks (Option D):** This is the expected date of delivery (EDD). Death at this stage is a post-term or term stillbirth. **High-Yield Clinical Pearls for NEET-PG:** * **WHO Definition:** For international comparison, WHO defines stillbirth as fetal death at **≥28 weeks** or birth weight **≥1000g**. * **Fresh vs. Macerated:** A "Fresh Stillbirth" (death <24 hours before delivery) suggests intrapartum complications, while a "Macerated Stillbirth" (peeling skin, skull collapse) suggests the fetus died in utero days before delivery. * **Spalding’s Sign:** Overlapping of skull bones on X-ray, a classic sign of fetal death (usually appears 4–7 days after death).

Question 413: A gravida 3 female with a history of two prior second-trimester abortions associated with painless cervical dilatation presents with Level II ultrasound findings. What is the most appropriate management?

A. Administer progesterone
B. Apply Fothergill suture
C. Apply McDonald suture (Correct Answer)
D. Wait and watch

Explanation: ***Apply McDonald suture*** - History of two prior **second-trimester abortions** with **painless cervical dilatation** indicates **cervical incompetence**, requiring **cervical cerclage**. - **McDonald cerclage** is the standard procedure for cervical incompetence, using a **purse-string suture** around the cervix to provide mechanical support. *Administer progesterone* - **Progesterone** is used as adjunctive therapy for **short cervix** but is not the definitive treatment for **cervical incompetence**. - It may help maintain pregnancy but cannot provide the **mechanical support** needed to prevent cervical dilatation. *Apply Fothergill suture* - **Fothergill suture** refers to the **Manchester operation** for **uterovaginal prolapse**, not cervical incompetence. - This procedure involves **amputation of the cervix** and **cardinal ligament shortening**, which is inappropriate for pregnancy management. *Wait and watch* - **Expectant management** is inappropriate given the clear history of **recurrent second-trimester losses** due to cervical incompetence. - **Level II ultrasound** likely shows **cervical funneling** or **short cervix**, indicating active cervical changes requiring immediate intervention.

Question 414: A G2P1L1 woman with a previous lower segment cesarean section (LSCS) presents at 37 weeks gestation with a blood pressure of 150/100 mm Hg. The cardiotocography (CTG) is reactive, and her per vaginum (P/V) findings are: os closed, cervix partially effaced, soft, midline, vertex at -2 station, and the pelvis is adequate. Urine protein by dipstick is 1+. What is the management?

A. Start antihypertensives and follow up after 1 week.
B. Induction of labor. (Correct Answer)
C. Cesarean section.
D. Do not start antihypertensives but follow up after 1 week.

Explanation: ### Explanation **1. Why Induction of Labor (IOL) is the Correct Answer:** The patient presents with **Gestational Hypertension** (BP ≥140/90 mmHg) with mild proteinuria (1+) at **37 weeks gestation**. According to standard obstetric guidelines (ACOG/FOGSI), the definitive management for any hypertensive disorder of pregnancy at or beyond 37 weeks is **delivery**. Despite a previous LSCS, a **Trial of Labor After Cesarean (TOLAC)** is not contraindicated here because the pelvis is adequate, the CTG is reactive, and the patient is at term. Induction is preferred over expectant management because continuing the pregnancy increases the risk of maternal complications (eclampsia, placental abruption) without improving fetal outcomes. **2. Why Other Options are Incorrect:** * **Options A & D:** Follow-up after one week (expectant management) is contraindicated. Once a patient with gestational hypertension or pre-eclampsia reaches **37 weeks**, the risks of continuing the pregnancy outweigh the benefits. Antihypertensives (Option A) are generally reserved for severe hypertension (BP ≥160/110 mmHg) to prevent maternal stroke, but they do not "cure" the underlying condition or delay the need for delivery at term. * **Option C:** Cesarean section is not the first-line management simply because of a previous LSCS or hypertension. If there are no obstetric contraindications to vaginal birth (like placenta previa or contracted pelvis), a trial of induction is appropriate. **3. Clinical Pearls for NEET-PG:** * **Term Definition in HTN:** For Gestational HTN/Mild Pre-eclampsia, deliver at **37 weeks**. For Severe Pre-eclampsia, deliver at **34 weeks**. * **Bishop Score:** The P/V findings (partially effaced, soft, midline) suggest a favorable cervix for induction. * **TOLAC Criteria:** A single previous low-transverse LSCS with an adequate pelvis is the ideal candidate for TOLAC. * **Antihypertensives in Pregnancy:** Labetalol (Drug of choice), Methyldopa, and Nifedipine are safe. ACE inhibitors and ARBs are strictly contraindicated.

Question 415: Which of the following is a side effect of magnesium sulfate?

A. Hypotonia (Correct Answer)
B. Anuria
C. Coma
D. Pulmonary edema

Explanation: **Explanation:** Magnesium sulfate ($MgSO_4$) is the drug of choice for seizure prophylaxis in pre-eclampsia and control in eclampsia. Its primary mechanism involves blocking neuromuscular transmission by decreasing the amount of acetylcholine released at the motor endplate. **Why Hypotonia is correct:** As a neuromuscular blocker and CNS depressant, magnesium causes generalized muscle relaxation. In the mother, this manifests as a loss of deep tendon reflexes (the first sign of toxicity). If it crosses the placenta, it can cause **neonatal hypotonia** (floppy baby syndrome) and respiratory depression, especially if administered shortly before delivery. **Analysis of Incorrect Options:** * **Anuria:** $MgSO_4$ is excreted almost exclusively by the kidneys. While renal failure leads to magnesium toxicity, the drug itself does not cause anuria. In fact, monitoring urine output ($>30$ ml/hr) is mandatory to prevent toxicity. * **Coma:** While severe toxicity can lead to CNS depression and somnolence, "Coma" is an extreme end-stage manifestation. Hypotonia and loss of reflexes are much more characteristic and common side effects. * **Pulmonary Edema:** This is a known complication of pre-eclampsia and can be exacerbated by fluid overload during $MgSO_4$ administration, but it is not a direct pharmacological side effect of the magnesium ion itself. **NEET-PG High-Yield Pearls:** * **Monitoring Parameters:** 1. Patellar reflex (earliest sign of toxicity: loss of reflex at 7–10 mEq/L); 2. Respiratory rate ($>12$/min); 3. Urine output ($>100$ ml/4 hours). * **Antidote:** 10 ml of 10% **Calcium Gluconate** IV (administered over 10 minutes). * **Therapeutic Range:** 4–7 mEq/L. Respiratory paralysis occurs at $>12$ mEq/L and cardiac arrest at $>25$ mEq/L.

Question 416: Which of the following is true regarding postpartum hemorrhage (PPH)?

A. Type B lynch suture is used. (Correct Answer)
B. With new advances, both atonic and traumatic PPH can be reduced.
C. It is more common in multiparous women.
D. It is associated with polyhydramnios.

Explanation: **Explanation:** Postpartum Hemorrhage (PPH) remains a leading cause of maternal mortality. Understanding its management and risk factors is crucial for NEET-PG. **1. Why Option A is Correct:** The **B-Lynch suture** is a life-saving surgical compression technique used in the management of atonic PPH when medical management (oxytocics) fails. It acts like a "pair of suspenders," compressing the anterior and posterior walls of the uterus against each other to achieve hemostasis. It is the most common uterine compression suture used to avoid a hysterectomy. **2. Analysis of Incorrect Options:** * **Option B:** While advances in active management (AMTSL) and drugs like Carbetocin have significantly reduced the incidence of **atonic PPH**, they have little impact on **traumatic PPH**. Traumatic PPH (lacerations, ruptures) is primarily dependent on obstetric skill, instrumental delivery, and fetal size, rather than pharmacological advances. * **Option C:** PPH is actually more common in **grand multiparous women** (parity ≥5) due to poor uterine tone (atony). However, as a general rule for exams, "multiparity" alone is often a distractor; the risk is specifically associated with the exhaustion of the myometrium in high-parity cases. * **Option D:** Polyhydramnios is a known **risk factor** for atonic PPH because the overdistended uterus cannot contract effectively after delivery. However, in the context of this specific question, Option A is the definitive clinical "truth" regarding management. **High-Yield Clinical Pearls for NEET-PG:** * **Definition:** Blood loss >500 ml (Vaginal) or >1000 ml (LSCS). * **Most Common Cause:** Uterine Atony (70-80%). * **First-line Drug:** Oxytocin (10 IU IM or 20 IU IV infusion). * **Drug of Choice for Prophylaxis:** Oxytocin. * **Surgical Step-ladder:** Uterine massage → Oxytocics → Tamponade → B-Lynch → Uterine/Internal Iliac Artery Ligation → Hysterectomy.

Question 417: A pregnant woman presents with a major degree placenta previa and a malformed fetus. What is the best management approach?

A. Cesarean section (Correct Answer)
B. Oxytocin drip
C. Rupture of membranes
D. Instillation of Prostaglandin E2

Explanation: **Explanation:** The management of placenta previa is primarily dictated by the degree of the previa and the maternal hemodynamic status, rather than the condition of the fetus. **1. Why Cesarean Section is Correct:** In cases of **major degree placenta previa** (Grade III and IV), the placenta completely or partially covers the internal os. This creates a physical barrier to vaginal delivery and, more importantly, poses a massive risk of life-threatening maternal hemorrhage if the cervix begins to dilate or if any attempt at vaginal delivery is made. Even if the fetus is malformed or dead, the **maternal safety** takes precedence. A Cesarean section is mandatory to bypass the obstruction and control bleeding, regardless of fetal viability or anomalies. **2. Why Incorrect Options are Wrong:** * **Oxytocin drip & Rupture of membranes (ARM):** These are methods to induce or augment labor. In major placenta previa, uterine contractions and cervical dilatation will cause placental separation from the lower uterine segment, leading to torrential, uncontrollable bleeding. ARM is only considered in minor degrees (Grade I or II-anterior). * **Instillation of Prostaglandin E2:** This is used for cervical ripening and induction. Similar to oxytocin, inducing labor in a major previa is contraindicated due to the risk of maternal exsanguination. **Clinical Pearls for NEET-PG:** * **Macafee’s Regimen:** Expectant management used to gain fetal maturity, but only if the mother is stable and bleeding has stopped. * **Double Set-up Examination:** Only performed in the OT (ready for immediate CS) for cases of minor/doubtful placenta previa to decide the mode of delivery. * **Rule of Thumb:** In placenta previa, "The life of the mother is always more important than the condition of the fetus." Major degree = Mandatory CS.

Question 418: What is the name of the following manoeuvre?

A. Pinard
B. Ritzen
C. Loveset
D. Mauriceau-Smellie-Veit (Correct Answer)

Explanation: ***Mauriceau-Smellie-Veit*** - This maneuver is specifically used for delivering the **aftercoming head** in breech presentations, involving **suprapubic pressure** and **jaw flexion**. - The technique involves placing fingers on the **maxilla** to flex the fetal head while applying **suprapubic pressure** from above. *Pinard* - This maneuver is used to **flex the knee** in **incomplete (footling) breech** presentations to bring down the foot. - It involves **hooking the popliteal fossa** with a finger to flex the knee and deliver the leg, not related to head delivery. *Ritzen* - This maneuver is used in **vertex presentations** to control the **fetal head** at the **perineum** during crowning. - It involves **controlled delivery** of the head to prevent **perineal tears**, not applicable to breech deliveries. *Loveset* - This maneuver is used for delivering **extended arms** in breech presentations by **rotating the fetus**. - It involves **180-degree rotation** to bring the posterior arm anterior for delivery, not for head delivery.

Question 419: Disseminated intravascular coagulation is present in all of the following conditions except:

A. Prolonged pregnancy (Correct Answer)
B. Amniotic fluid embolism
C. Septic shock
D. Abruptio placentae

Explanation: **Explanation:** Disseminated Intravascular Coagulation (DIC) in obstetrics is a secondary pathological activation of the coagulation cascade, leading to the consumption of clotting factors and platelets. **Why Prolonged Pregnancy is the Correct Answer:** Prolonged pregnancy (post-term pregnancy >42 weeks) is associated with risks like macrosomia, oligohydramnios, and placental insufficiency, but it does **not** inherently trigger the systemic inflammatory response or the release of thromboplastin required to cause DIC. In contrast, **Intrauterine Fetal Death (IUFD)** can lead to DIC, but only if the dead fetus is retained for more than 3–4 weeks (due to the gradual release of thromboplastin into maternal circulation). **Why the other options are incorrect:** * **Amniotic Fluid Embolism:** This is a classic cause of "consumptive coagulopathy." Amniotic fluid contains high concentrations of tissue factor which, upon entering maternal circulation, triggers massive, sudden DIC. * **Septic Shock:** Endotoxins from Gram-negative bacteria (often seen in septic abortion or chorioamnionitis) activate the extrinsic pathway and damage endothelial cells, leading to DIC. * **Abruptio Placentae:** This is the **most common cause** of DIC in obstetrics. The retroplacental clot releases large amounts of thromboplastin into the maternal venous system. **High-Yield Clinical Pearls for NEET-PG:** * **Most common cause of DIC in pregnancy:** Abruptio placentae. * **Earliest bedside test for DIC:** Weiner’s Clot Observation Test (failure of blood to clot within 6–10 minutes or a clot that undergoes rapid lysis). * **Key Lab Findings:** ↓ Fibrinogen (<150 mg/dL), ↑ FDPs/D-dimer, ↓ Platelets, and prolonged PT/APTT. * **Management Priority:** Treat the underlying cause (e.g., deliver the fetus) and replace blood products (Cryoprecipitate is preferred for low fibrinogen).

Question 420: Late deceleration in fetal heart rate monitoring indicates:

A. Head compression
B. Cord compression
C. Fetal hypoxia (Correct Answer)
D. Breech presentation

Explanation: **Explanation:** **Late decelerations** are characterized by a gradual decrease in fetal heart rate (FHR) where the nadir (lowest point) occurs **after** the peak of the uterine contraction. This pattern is a hallmark sign of **uteroplacental insufficiency**. When the placenta cannot provide adequate oxygen during a contraction, fetal PO2 drops below a critical threshold, triggering chemoreceptors. This results in a vagal response and direct myocardial depression, leading to **fetal hypoxia** and acidosis. **Analysis of Options:** * **Option A (Head Compression):** This causes **Early Decelerations**. The nadir coincides with the peak of the contraction (mirror image). It is a physiological response due to increased intracranial pressure and is not associated with fetal distress. * **Option B (Cord Compression):** This causes **Variable Decelerations**. These are abrupt in onset and recovery, often V-shaped, and are the most common type of deceleration seen in labor. * **Option D (Breech Presentation):** While breech can be associated with cord prolapse (leading to variables), it is not the specific cause of late decelerations. **High-Yield Clinical Pearls for NEET-PG:** * **Early Deceleration:** Benign; "Mirror image" of contraction; caused by head compression. * **Variable Deceleration:** Most common; caused by cord compression; managed by position change or amnioinfusion. * **Late Deceleration:** Most ominous; indicates hypoxia; requires immediate "intrauterine resuscitation" (L-lateral position, Oxygen, IV fluids, stopping Oxytocin) and potentially urgent delivery. * **Sinusoidal Pattern:** Indicates severe fetal anemia (e.g., Rh isoimmunization).

Practice by Chapter

Physiology of Labor

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Stages of Labor and Normal Progression

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Fetal Monitoring Techniques

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Pain Management in Labor

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Induction and Augmentation of Labor

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Operative Delivery (Forceps and Vacuum)

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Cesarean Section: Indications and Techniques

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Dystocia and Abnormal Labor Patterns

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Obstetric Emergencies

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Postpartum Hemorrhage Management

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