Infanticide Practice Questions

Q: What is the legal age by which a fetus is considered capable of independent existence?

210 days. **Explanation:** The concept of **viability** refers to the stage of fetal development at which the fetus is capable of maintaining an independent existence outside the mother's womb. 1. **Why 210 days is correct:** In Forensic Medicine and Indian Law, a fetus is generally considered viable at **210 days (7 lunar months or 30 weeks)** of gestation. At this stage, the organs (specifically the lungs and surfactant production) are sufficiently developed to allow the fetus to survive if born prematurely. While modern neonatal intensive care (NICU) can support younger fetuses, 210 days remains the standard legal and academic benchmark for "attaining viability" in the context of Indian medical jurisprudence. 2. **Analysis of Incorrect Options:** * **A (240 days) & B (230 days):** These represent advanced third-trimester stages. While a fetus is certainly viable at these points, they do not represent the *earliest* legal threshold for independent existence. * **C (220 days):** This is closer to the threshold but exceeds the standard 210-day mark taught in standard forensic textbooks (like Reddy’s) for NEET-PG. **High-Yield Clinical Pearls for NEET-PG:** * **MTP Act Amendment (2021):** The upper limit for termination of pregnancy has been increased from 20 to **24 weeks** for specific categories of women, and there is no upper limit in cases of substantial fetal abnormalities (decided by a Medical Board). * **Rule of Haase:** Used to determine the age of the fetus. For the first 5 months, Age = $\sqrt{\text{Length in cm}}$. For the last 5 months, Age = $\text{Length} \div 5$. * **Quickening:** Usually felt at **18–20 weeks** in primigravida and **16–18 weeks** in multigravida; it is a subjective sign of life.

Q: All are signs of live birth except?

Cephalhematoma. ### Explanation In Forensic Medicine, determining whether a child was born alive (live birth) or was stillborn is a critical medicolegal task. **Why Cephalhematoma is the correct answer:** Cephalhematoma is a subperiosteal collection of blood caused by the rupture of vessels between the bone and the periosteum, usually due to birth trauma. Crucially, it can occur **during the process of labor** (birth act) before the child has actually been born or taken its first breath. Therefore, while it indicates the child was alive *during labor*, it is not a definitive sign of *live birth* (extrauterine life). **Analysis of other options (Signs of Live Birth):** * **Vagitus vaginalis:** This refers to the cry of the child while the head is in the vagina but the body is still inside. Since crying requires air inspiration, it is a definitive sign of life. * **Sneezing:** This is a reflex action that occurs only after the child has been born and has commenced respiration. * **Vagitus uterinus:** This is the cry of the fetus within the uterus (usually when air is introduced via instruments or membranes rupture). While rare, it signifies that the fetus has performed respiratory efforts. **High-Yield Clinical Pearls for NEET-PG:** * **Hydrostatic Test (Raygat’s Test):** Based on the fact that lungs float in water after respiration. It can give a **False Positive** in cases of putrefaction (gas formation) and a **False Negative** in cases of secondary atelectasis. * **Wredin’s Test:** Disappearance of the gelatinous embryonic connective tissue in the middle ear due to air entry. * **Breslau’s Second Life Test:** Presence of air in the stomach and intestines (Gastrointestinal Hydrostatic Test). * **Static Test (Foder’s Test):** Weight of the lungs increases after respiration due to increased pulmonary vascularity (approx. 500-600 grains to 900-1000 grains).

Q: Which of the following tests is done to confirm a live-born fetus after fetal death?

Breslau's test. **Explanation:** The correct answer is **Breslau’s test**, also known as the **Stomach-Bowel Hydrostatic Test**. **1. Why Breslau’s Test is Correct:** This test is based on the principle that a live-born infant swallows air during the first few breaths. This air travels from the stomach into the intestines. During the test, the stomach and intestines are ligated, removed, and placed in water. If they float, it indicates the presence of air, suggesting the infant was born alive and breathed. It is often used as a corroborative test alongside the **Hydrostatic (Raygat’s) test** of the lungs. **2. Why the Other Options are Incorrect:** * **Mirror Test:** This is a clinical test used to confirm **death** (not live birth). A cold mirror is held in front of the nose/mouth; if it fogs up, it indicates continued respiration. * **Magnus Test:** This is a test for **somatic death**. A ligature is tied around a finger; if the tip remains white (no congestion), it suggests that circulation has ceased. * **Paraffin Test:** Also known as the **Dermal Nitrate Test**, this is used in ballistics to detect gunpowder residue (nitrates) on the hands of a person suspected of firing a gun. **3. NEET-PG High-Yield Pearls:** * **Hydrostatic Test (Raygat’s):** The gold standard for live birth. Lungs float in water if respiration occurred. * **Wredin’s Test:** Detection of air in the middle ear (another sign of live birth). * **Fodere’s Test:** Increase in the weight of the lungs due to increased pulmonary circulation after birth. * **Caution:** Decomposition can cause false positives in Breslau’s and Raygat’s tests due to the production of putrefactive gases. Always check for signs of decomposition before interpreting results.

Q: If a fetus is born dead at 5 months gestation, which of the following signs is identifiable during autopsy?

Mummification. **Explanation:** The correct answer is **Mummification** (specifically, **Maceration**). In the context of forensic medicine and fetal death, when a fetus dies in utero in a sterile environment (the amniotic sac), it undergoes a specific form of aseptic autolysis known as maceration. If the dead fetus remains in the uterus for a prolonged period without the introduction of bacteria, it dehydrates and shrivels, leading to a mummified appearance (Fetus Papyraceus). **Why other options are incorrect:** * **Rigor Mortis:** This requires a certain level of muscular development. In a 5-month-old fetus, the muscular system is too poorly developed to manifest detectable rigor mortis. * **Adipocere:** This requires the hydrogenation of body fats in a moist, anaerobic environment over several weeks to months. It is rarely seen in mid-trimester fetuses due to insufficient subcutaneous fat stores at 5 months. * **Putrefaction:** This is a septic process caused by bacteria (primarily *C. welchii*). Since the intact amniotic sac is a sterile environment, typical putrefaction does not occur unless the membranes have ruptured and infection has set in. **High-Yield NEET-PG Pearls:** * **Maceration Signs:** The earliest sign is **skin slipping** (bullae formation), which appears within 6–12 hours of death. * **Spalding’s Sign:** Overlapping of cranial bones seen on X-ray/USG due to liquefaction of the brain; usually appears 24–48 hours after fetal death. * **Robert’s Sign:** Presence of gas in the fetal heart or large vessels (earliest radiological sign, seen within 12 hours). * **Fetus Papyraceus:** Occurs in twin pregnancies where one fetus dies and is compressed/mummified by the growing twin.

Q: A one-year-old child presented with multiple fractures in various stages of healing. What is the most probable diagnosis?

Battered baby syndrome. ### Explanation **Correct Answer: C. Battered Baby Syndrome (Caffey’s Syndrome)** The hallmark of **Battered Baby Syndrome** (Non-Accidental Injury) is the presence of **multiple fractures in various stages of healing**, indicating repeated episodes of trauma over time. This clinico-pathological condition occurs when a young child (usually under 3 years) suffers deliberate physical abuse by a parent or guardian. The discrepancy between the clinical findings (old and new injuries) and the history provided by the caregiver is a key diagnostic feature. **Why the other options are incorrect:** * **Scurvy (Option A):** While it causes subperiosteal hemorrhages and bone fragility, it typically presents with specific radiological signs like the *Wimberger ring sign* or *Frankel’s line*, rather than multi-stage fractures. * **Rickets (Option B):** Presents with widening of the growth plate, cupping, and fraying of metaphyses. While bones are soft (leading to deformities like bow legs), multiple fractures in different healing stages are not the primary presentation. * **Fall from height (Option D):** This usually results in acute, single-episode trauma. It cannot explain fractures at different stages of healing (e.g., a fresh fracture alongside a well-formed callus). **Clinical Pearls for NEET-PG:** * **Radiological Signs:** Look for **Metaphyseal bucket-handle fractures** or "corner fractures," which are highly specific for child abuse. * **Commonest Site:** Long bones (humerus, femur) and ribs (especially posterior rib fractures). * **Differential Diagnosis:** Always rule out **Osteogenesis Imperfecta** (look for blue sclera and family history). * **Legal Aspect:** In India, cases of Battered Baby Syndrome must be reported under the **POCSO Act** and the Juvenile Justice Act.

Q: All tests are used for infanticide except?

Gettler's test. **Explanation:** In Forensic Medicine, the primary objective in cases of suspected infanticide is to determine whether the infant was **born alive** or was a stillbirth. This is established by checking for signs of respiration (breathing). **Why Gettler’s Test is the Correct Answer:** **Gettler’s Test** (Chloride test) is used to determine **death by drowning**. It compares the chloride content in the blood of the right and left ventricles of the heart. Since it is a test for drowning and not for live birth or respiration, it is the odd one out in the context of infanticide. **Analysis of Incorrect Options (Tests for Live Birth):** * **Ploucquet’s Test:** This is based on the **weight of the lungs** relative to the total body weight. In a live-born infant, the lungs are heavier due to increased pulmonary circulation following respiration (Ratio: 1:35 for live birth vs. 1:70 for stillbirth). * **Fodere’s Test (Static Test):** This involves weighing the lungs. It is the precursor to the Hydrostatic test. * **Raygat’s Test (Hydrostatic Test):** The most famous test for live birth. It relies on the fact that lungs containing air will **float in water**, while stillborn lungs (atelectatic) will sink. **High-Yield Clinical Pearls for NEET-PG:** * **Wredin’s Test:** Detection of air in the middle ear (disappearance of the gelatinous embryonic tissue). * **Breslau’s Second Life Test:** Presence of air in the stomach and intestines (Gastrointestinal Hydrostatic Test). * **Maceration:** A sterile autolytic process occurring in a dead fetus in utero; its presence is definitive proof of **stillbirth**. * **Caput Succedaneum vs. Cephalhematoma:** Important distinctions in birth trauma often asked alongside infanticide.

Q: The 'Stomach bowel test' is also known as which of the following?

Breslau's second life test. **Explanation:** The **Stomach-Bowel Test** (also known as **Breslau’s Second Life Test**) is a hydrostatic test used in forensic autopsy to determine if a newborn was born alive. It is based on the principle that a live-born infant swallows air during the process of breathing and crying. This air travels from the stomach into the intestines. * **Mechanism:** The stomach and intestines are ligated at both ends, removed, and placed in water. If they float, it indicates the presence of air, suggesting the infant breathed and swallowed air (live birth). **Analysis of Options:** * **Breslau’s Second Life Test (Correct):** This is the specific eponym for the stomach-bowel test. It complements the lung test to confirm live birth, especially if the lungs are decomposed. * **Breslau’s First Life Test (Incorrect):** This is another name for the **Hydrostatic Test (Raygat’s Test)**, which involves floating the lungs in water to check for air inhalation. * **Hydrostatic Test / Raygat’s Test (Incorrect):** These terms refer specifically to the floating of the **lungs**. While based on a similar principle of air displacement, they do not involve the gastrointestinal tract. **High-Yield Clinical Pearls for NEET-PG:** 1. **Sequence of Air:** Air reaches the stomach immediately after birth, the proximal small intestine in 1–2 hours, and the large intestine within 6–12 hours. This helps estimate the **duration of survival**. 2. **False Positives:** Putrefaction (gas formation due to decomposition) can cause a dead-born infant's organs to float. 3. **Wredin’s Test:** Another life test involving the disappearance of the gelatinous embryonic connective tissue in the middle ear (replaced by air). 4. **Staticum Test (Fodere’s Test):** Comparing the weight of the lungs to the body weight (increased weight in live births due to pulmonary circulation).

Q: Which of the following conditions is a necessary prerequisite for this change?

Adequate liquor amnii. ***Adequate liquor amnii*** - **Adequate amniotic fluid** provides the essential **fluid medium** required for **maceration** (aseptic autolysis) to occur in a dead fetus. - Maceration is a **sterile process** that requires the fetus to remain submerged in amniotic fluid, allowing enzymatic breakdown without bacterial contamination. *Rupture of membranes* - When membranes rupture, **air enters** the uterine cavity, leading to **putrefaction** instead of maceration. - This creates an **aerobic environment** that promotes bacterial growth and decomposition rather than the sterile autolytic process. *Scanty liquor amnii* - **Oligohydramnios** prevents proper maceration as there is insufficient fluid to keep the fetus submerged. - Without adequate fluid medium, the **enzymatic processes** of maceration cannot proceed effectively. *Air inside the uterine cavity* - Presence of air creates **aerobic conditions** that favor **putrefaction** over maceration. - Maceration specifically requires an **anaerobic, sterile environment** provided by intact membranes and adequate amniotic fluid.

Question 1

What is the legal age by which a fetus is considered capable of independent existence?

Accepted Answer

210 days

Answer

240 days

Answer

230 days

Answer

220 days

Question 2

All are signs of live birth except?

Accepted Answer

Cephalhematoma

Answer

Vagitus vaginalis

Answer

Sneezing

Answer

Vagitus uterinus

Question 3

Which of the following is NOT a characteristic feature of battered baby syndrome?

Accepted Answer

Fractures of the anterior angles of the ribs (Nobbing fractures).

Answer

Subdural hemorrhage occurs in 40% of fatal cases.

Answer

Vitreous and subhyaloid hemorrhages in the eyes.

Answer

Torn frenulum on the lower lip.

Question 4

Which of the following tests is done to confirm a live-born fetus after fetal death?

Accepted Answer

Breslau's test

Answer

Mirror test

Answer

Magnus test

Answer

Paraffin test

Question 5

If a fetus is born dead at 5 months gestation, which of the following signs is identifiable during autopsy?

Accepted Answer

Mummification

Answer

Rigor mortis

Answer

Adipocere

Answer

Putrefaction

Question 6

All are true about stillbirth, except:

Accepted Answer

Birth weight < 1000 g

Answer

Fetus was alive in utero

Answer

Diaphragm at 4-5th rib level

Answer

Hydrostatic test is negative

Question 7

A one-year-old child presented with multiple fractures in various stages of healing. What is the most probable diagnosis?

Accepted Answer

Battered baby syndrome

Answer

Scurvy

Answer

Rickets

Answer

Fall from height

Question 8

All tests are used for infanticide except?

Accepted Answer

Gettler's test

Answer

Ploucquet test

Answer

Fodere's test

Answer

Raygat's test

Question 9

The 'Stomach bowel test' is also known as which of the following?

Accepted Answer

Breslau's second life test

Answer

Hydrostatic test

Answer

Breslau's first life test

Answer

Raygat's test

Question 10

Which of the following conditions is a necessary prerequisite for this change?

Accepted Answer

Adequate liquor amnii

Answer

Rupture of membranes

Answer

Scanty liquor amnii

Answer

Air inside the uterine cavity

Infanticide — MCQs

Infanticide — MCQs

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