Labor and Delivery Practice Questions

Q: What is the first-line drug for atonic postpartum hemorrhage?

Oxytocin. **Explanation:** **Atonic Postpartum Hemorrhage (PPH)** is the most common cause of PPH (approx. 80%). The primary goal of management is to stimulate uterine contractions to compress the spiral arteries. **Why Oxytocin is the Correct Answer:** Oxytocin is the **first-line drug** for both the prevention (Active Management of Third Stage of Labor - AMTSL) and treatment of atonic PPH. It acts rapidly (within 2–3 minutes when given IM), has a predictable response, and carries a low side-effect profile compared to other uterotonics. It is administered as a slow IV infusion or IM injection. **Analysis of Incorrect Options:** * **A. Methylergometrine:** This is a second-line agent. It is highly effective but **contraindicated in patients with hypertension** or pre-eclampsia, as it causes peripheral vasoconstriction. * **C. PGE1 (Misoprostol):** Usually reserved for settings where oxytocin is unavailable or as an adjunct. It has a slower onset of action and common side effects like shivering and pyrexia. * **D. Carboprost (15-methyl PGF2α):** A potent second-line uterotonic used when oxytocin fails. It is **contraindicated in patients with asthma** due to its bronchoconstrictor effects. **High-Yield Clinical Pearls for NEET-PG:** * **Drug of Choice (DOC) for AMTSL:** Oxytocin (10 IU IM). * **DOC for PPH in a Hypertensive Patient:** Oxytocin (Avoid Methylergometrine). * **DOC for PPH in an Asthmatic Patient:** Oxytocin or Methylergometrine (Avoid Carboprost). * **Maximum Dose of Oxytocin:** 40 IU in 500ml/1L of crystalloid. * **Surgical Step (if drugs fail):** Uterine massage → Bimanual compression → Uterine packing/Balloon tamponade → Surgical ligation/B-Lynch suture → Hysterectomy (last resort).

Q: Which of the following statements regarding episiotomy is false?

Episiotomy should be routinely given in all primigravidas.. **Explanation:** The correct answer is **D**. Historically, episiotomy was performed routinely in primigravidas based on the belief that it prevented pelvic floor relaxation and fetal intracranial hemorrhage. However, current evidence-based guidelines (ACOG and WHO) recommend **restrictive use** rather than routine use. Routine episiotomy is associated with an increased risk of third- and fourth-degree perineal tears, higher rates of infection, and increased postpartum pain without providing significant benefits to the mother or neonate. **Analysis of other options:** * **Option A:** In **Frank breech delivery**, a generous episiotomy is often indicated to facilitate the application of forceps to the after-coming head or to allow easier execution of maneuvers (like Pinard’s) to deliver the legs, thereby reducing fetal trauma. * **Option B (Perineal integrity/breakdown):** While the provided text is slightly unclear, the clinical concept is that routine episiotomy actually increases the risk of extension into the anal sphincter (rectal injury) compared to spontaneous tears. * **Option C:** Large randomized trials have proven that routine episiotomy does **not** protect the perineum from severe trauma; in fact, it is a risk factor for extension into the rectum (3rd and 4th-degree tears). **High-Yield Clinical Pearls for NEET-PG:** * **Type of Episiotomy:** Mediolateral is the most common type used in India as it carries a lower risk of anal sphincter injury compared to the midline type. * **Timing:** It should be performed at the "crowning" phase when the perineum is thinned out. * **Indications for Restrictive Use:** Fetal distress, instrumental delivery (forceps/vacuum), shoulder dystocia, and breech delivery. * **Suture Material:** Polyglactin 910 (Vicryl) is the preferred absorbable suture for repair.

Q: All of the following can be administered in acute hypertension during labor except?

IV diazoxide. **Explanation:** The management of acute hypertensive emergencies during labor (often due to Preeclampsia/Eclampsia) requires rapid-acting antihypertensives that are safe for both the mother and the fetus. **Why IV Diazoxide is the correct answer:** While **IV Diazoxide** is a potent vasodilator, it is **contraindicated** during labor. Its primary drawback is that it causes profound **uterine relaxation (tocolysis)**, which can arrest labor and lead to significant postpartum hemorrhage (PPH). Furthermore, it can cause severe maternal hypotension and hyperglycemia, making it an unsafe choice compared to modern alternatives. **Analysis of Incorrect Options:** * **IV Labetalol:** This is the **first-line drug** for acute hypertension in pregnancy. It is a combined alpha and beta-blocker that lowers blood pressure without causing reflex tachycardia, maintaining stable uteroplacental perfusion. * **IV Dihydralazine:** A direct vasodilator that has been a traditional mainstay in obstetric practice. It is effective for rapid BP control, though it may cause reflex tachycardia and headache. * **IV Nitroprusside:** Reserved as a **last-resort** agent for refractory hypertension. While it carries a theoretical risk of fetal cyanide toxicity with prolonged use, it can be used briefly in life-threatening emergencies when other drugs fail. **High-Yield Clinical Pearls for NEET-PG:** * **Target BP:** In acute hypertensive crisis, the goal is to bring Systolic BP to 140–150 mmHg and Diastolic BP to 90–100 mmHg (avoiding sudden drops to prevent placental hypoperfusion). * **Oral Alternative:** Oral **Nifedipine** (10mg) is the preferred non-parenteral option for rapid reduction of BP. * **Drug of Choice for Seizures:** **Magnesium Sulfate (MgSO₄)** remains the gold standard for seizure prophylaxis and control in Eclampsia (Pritchard Regimen).

Q: All of the following statements are true regarding stargazer breech fetus except?

Forceps are indicated for delivery. ### Explanation The **"Stargazer" fetus** refers to a breech presentation where the fetal head is in **extreme hyperextension** (deflexed). This condition poses significant risks during delivery and requires specific management strategies. **Why Option A is the correct answer (The "Except" statement):** Forceps (such as Piper’s forceps) are typically used to assist in the delivery of the after-coming head in a *normal* breech. However, in a stargazer breech, the hyperextension increases the diameters of the head presenting to the birth canal. Attempting a vaginal delivery—with or without forceps—carries a high risk of **spinal cord transection** or vertebral fracture due to the "clamping" effect of the maternal symphysis against the hyperextended neck. Therefore, forceps are **not** indicated; they are contraindicated in favor of a Cesarean Section. **Analysis of other options:** * **Option B:** True. The hallmark of a stargazer fetus is the hyperextension of the fetal head (occiput touching the back). * **Option C:** True. **Cesarean delivery** is the safest and preferred route to avoid mechanical trauma to the fetal neck. * **Option D:** True. During vaginal delivery, the traction applied to the body while the head is hyperextended can lead to severe **cervical spinal cord injury**. ### High-Yield Clinical Pearls for NEET-PG: * **Diagnosis:** Usually made via ultrasound or X-ray (showing the "stargazing" posture). * **Incidence:** Occurs in approximately 5% of breech presentations. * **Etiology:** Can be caused by fetal neck masses (e.g., goiter, cystic hygroma), uterine anomalies, or increased fetal muscle tone. * **Management Rule:** If the angle of extension is **>90 degrees**, vaginal delivery is absolutely contraindicated.

Q: Rupture of membranes is said to be premature when it occurs:

Prior to the 1st stage of labor. ### Explanation **1. Understanding the Correct Answer (Option C)** The definition of **Premature Rupture of Membranes (PROM)** is strictly clinical and relates to the **timing of labor onset**, not the gestational age. It is defined as the spontaneous rupture of the amniotic membranes **prior to the onset of labor** (i.e., before the start of the 1st stage of labor). If labor does not begin within one hour of rupture, it is classified as PROM. **2. Analysis of Incorrect Options** * **Options A & B:** These refer to gestational ages. While rupture before 37 weeks is specifically called **Preterm PROM (PPROM)**, the term "Premature" in PROM refers to the "pre-labor" status. A patient at 38 weeks (Term) can still have PROM if her membranes rupture before contractions begin. * **Option D:** Rupture during the 2nd stage of labor is considered late. Normal rupture typically occurs at the end of the 1st stage (full cervical dilatation). **3. NEET-PG High-Yield Pearls** * **PPROM:** Rupture occurring before 37 completed weeks of gestation. * **Diagnosis:** The gold standard is clinical visualization of fluid pooling in the posterior fornix via a **sterile speculum exam**. Avoid digital exams to reduce infection risk. * **Confirmatory Tests:** * **Nitrazine Test:** Paper turns blue (pH > 6.0-6.5). * **Fern Test:** Arborization pattern on microscopy (most reliable). * **Latency Period:** The time interval between the rupture of membranes and the onset of labor. * **Major Complication:** Chorioamnionitis (indicated by maternal fever, fetal tachycardia, and uterine tenderness).

Q: What is the recommended treatment for deep transverse arrest?

Lower segment cesarean section (LSCS). **Explanation:** **Deep Transverse Arrest (DTA)** occurs when the fetal head is arrested at the level of the ischial spines (deep in the pelvic cavity) in the transverse position. This is typically due to a failure of internal rotation, often associated with an android or anthropoid pelvis. **1. Why LSCS is the Correct Answer:** In modern obstetric practice, **Lower Segment Cesarean Section (LSCS)** is the safest and most recommended treatment for DTA. While historical textbooks mentioned manual rotation or Kielland’s forceps, these procedures carry high risks of maternal trauma (vaginal tears, bladder injury) and neonatal morbidity (intracranial hemorrhage). Because DTA often signifies a **relative cephalopelvic disproportion (CPD)** or a contracted mid-pelvis, LSCS ensures the best outcome for both mother and fetus. **2. Why Other Options are Incorrect:** * **Induction of Labour:** This is used to initiate labor, not to manage an arrest that occurs during the second stage. * **Trial of Labour:** DTA is a diagnosis made *during* labor when progress has already ceased; therefore, the "trial" has effectively failed. * **Craniotomy:** This is a destructive procedure only performed on a **dead fetus** to facilitate delivery. It is never the first-line treatment for a live fetus. **Clinical Pearls for NEET-PG:** * **Definition:** Arrest of the fetal head at the level of ischial spines for >1 hour in the transverse position. * **Commonest Cause:** Android pelvis (due to its narrow mid-pelvis and straight side walls). * **Prerequisites for Forceps:** If instrumental delivery is attempted (rarely), the cervix must be fully dilated, the head must be engaged, and there must be no CPD. * **High-Yield Fact:** If the question specifies a **dead fetus** in DTA, the answer changes to **Craniotomy**. For a **live fetus**, the answer is always **LSCS**.

Q: Couvelaire uterus is a condition associated with which of the following?

Abruptio placentae. **Explanation:** **Couvelaire uterus** (also known as uteroplacental apoplexy) is a classic complication of **Abruptio placentae**, specifically the concealed variety. It occurs when retroplacental blood penetrates through the uterine musculature (myometrium) into the subserosal space. This massive extravasation of blood causes the uterus to appear bluish or purplish and mottled, often losing its ability to contract effectively (uterine atony). **Why the other options are incorrect:** * **Placenta Previa:** This involves the placenta being implanted in the lower uterine segment. Bleeding is typically painless and external; it does not involve the intramural sequestration of blood seen in Couvelaire uterus. * **Vasa Previa:** This is a condition where fetal vessels run through the membranes over the internal os. Bleeding here is fetal in origin and occurs upon rupture of membranes, without myometrial infiltration. **High-Yield Clinical Pearls for NEET-PG:** * **Diagnosis:** It is a **per-operative diagnosis** (usually seen during a Cesarean section). * **Management:** The primary treatment is the administration of **oxytocics** to manage the resulting uterine atony. Hysterectomy is rarely required and is only a last resort if bleeding cannot be controlled. * **Key Feature:** Despite the alarming appearance of the uterus, it is **not** an absolute indication for hysterectomy. * **Association:** It is most commonly associated with severe, concealed placental abruption and pre-eclampsia.

Q: What is the most common twin presentation?

Vertex-vertex. **Explanation:** In twin pregnancies, the presentation of the fetuses depends on their orientation relative to the maternal pelvis. The most common presentation, occurring in approximately **40–45% of cases**, is **Vertex-Vertex** (both twins presenting by the head). This is followed by Vertex-Breech (approx. 35%) and Breech-Breech (approx. 10%). **Why Vertex-Vertex is correct:** The fetal head is the heaviest part of the body, and gravity naturally encourages a cephalic (vertex) position. In a twin gestation, the uterine cavity is most efficiently occupied when both fetuses align longitudinally. Since the vertex position is the most common for singletons (95%), it remains the statistically dominant presentation for both Twin A (the leading twin) and Twin B. **Analysis of Incorrect Options:** * **Vertex-Brow & Vertex-Face:** These represent malpresentations of the second twin. While they can occur, they are rare (less than 1%) and do not constitute a standard "common" pattern for twin delivery. * **Vertex-Breech:** This is the **second most common** presentation. It is clinically significant because while Twin A can be delivered vaginally, the delivery of Twin B (breech) requires specific obstetric maneuvers or a possible internal podalic version. **NEET-PG High-Yield Pearls:** * **Management:** Vertex-Vertex twins are almost always managed via a trial of vaginal delivery. * **The "Rule of 50":** Roughly 50% of twins are Vertex-Vertex, and in nearly 80% of all twin pregnancies, Twin A is Vertex. * **Contraindication:** If Twin A is Non-Vertex (e.g., Breech or Transverse), a Cesarean Section is generally indicated to avoid "locked twins," a rare but serious complication where the chins of both fetuses interlock.

Question 1

What is the first-line drug for atonic postpartum hemorrhage?

Accepted Answer

Oxytocin

Answer

Methylergometrine

Answer

PGE1 (Misoprostol)

Answer

Carboprost

Question 2

Which of the following statements regarding episiotomy is false?

Accepted Answer

Episiotomy should be routinely given in all primigravidas.

Answer

Frank breech delivery should be preceded by a generous episiotomy.

Answer

Perineal was is incorrect, should be 'washes' or similar. Assuming 'Perineal stitches increase the risk of episiotomy breakdown.'

Answer

Routine episiotomy does not reduce the risk of rectal injury.

Question 3

All of the following can be administered in acute hypertension during labor except?

Accepted Answer

IV diazoxide

Answer

IV labetalol

Answer

IV nitroprusside

Answer

IV dihydralazine

Question 4

Which of the following statements regarding the management of twin pregnancy in labor is true?

Accepted Answer

Internal podalic version can be performed for the second twin if it is in a transverse lie.

Answer

Intramuscular methylergometrine should be administered after the delivery of the first twin to mitigate the increased risk of postpartum hemorrhage due to uterine atony.

Answer

External cephalic version can be attempted at 36 weeks gestation if the first twin is not in a cephalic presentation.

Answer

A first twin in cephalic presentation and a second twin in breech presentation is a contraindication for a trial of labor.

Question 5

All of the following statements are true regarding stargazer breech fetus except?

Accepted Answer

Forceps are indicated for delivery

Answer

Fetal head is hyperextended

Answer

Cesarean delivery is the safest route for delivery

Answer

Cervical spinal cord can be injured during vaginal delivery

Question 6

In a case of prolonged labor with persistent occiput posterior presentation, what is the recommended management?

Accepted Answer

Manual or forceps rotation followed by forceps delivery

Answer

Oxytocin drip

Answer

Cesarean section

Answer

Artificial rupture of membranes

Question 7

Rupture of membranes is said to be premature when it occurs:

Accepted Answer

Prior to the 1st stage of labor

Answer

At 38 weeks of pregnancy

Answer

At 32 weeks of pregnancy

Answer

During the 2nd stage of labor

Question 8

What is the recommended treatment for deep transverse arrest?

Accepted Answer

Lower segment cesarean section (LSCS)

Answer

Induction of labour

Answer

Trial of labour

Answer

Craniotomy

Question 9

Couvelaire uterus is a condition associated with which of the following?

Accepted Answer

Abruptio placentae

Answer

Placenta previa

Answer

Vasa previa

Answer

All of the above

Question 10

What is the most common twin presentation?

Accepted Answer

Vertex-vertex

Answer

Vertex-brow

Answer

Vertex-face

Answer

Vertex-breech

Labor and Delivery — MCQs

Labor and Delivery — MCQs

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