Infanticide Practice Questions

Q: Wreden's test is used to demonstrate which of the following?

Live birth. **Explanation:** **Wreden's Test (also known as the Wendt-Wreden Test)** is a hydrostatic test used in forensic autopsy to determine **live birth**. The underlying medical concept is based on the presence of air in the **middle ear**. In a stillborn fetus, the middle ear is filled with embryonic gelatinous connective tissue or fluid. Once a baby is born alive and begins breathing and swallowing, air travels through the Eustachian tube into the middle ear, displacing the fluid. During the test, the middle ear is opened under water; if air bubbles escape, it indicates the infant breathed after birth. **Analysis of Options:** * **A. Live birth (Correct):** As explained, the presence of air in the middle ear is a sign of respiration and physiological activity post-delivery. * **B. Insanity:** Tests for insanity in forensic psychiatry include the Mc’Naughten rules or clinical evaluations, not anatomical middle ear tests. * **C. Putrefaction:** While decomposition can produce gases that might cause false positives in hydrostatic tests (like the Foderé’s test), Wreden's test is specifically designed to assess viability/live birth. * **D. Assault:** Assault is determined by injury patterns (abrasions, contusions, etc.), not by middle ear air content. **High-Yield Clinical Pearls for NEET-PG:** * **Foderé’s Test (Hydrostatic Test):** The most common test for live birth involving the lungs. Lungs float in water if the infant has breathed. * **Breslau’s Second Life Test:** Involves the stomach and intestines; air swallowed during live birth causes these organs to float. * **Earliest sign of live birth:** The presence of air in the stomach (Breslau's test) can occur even before the lungs fully expand. * **Wreden’s Test Timing:** It is particularly useful when the lungs are putrefied, as the middle ear is relatively protected from early decomposition.

Q: What is the earliest sign of maceration?

Skin slippage. **Explanation:** **Maceration** is a form of aseptic autolysis that occurs when a fetus dies in utero and remains within the intact amniotic sac. It is characterized by the softening and peeling of tissues due to the action of proteolytic enzymes in a sterile, fluid environment. 1. **Why Skin Slippage is correct:** **Skin slippage** (the formation of bullae and peeling of the epidermis) is the **earliest sign** of maceration. It typically begins at the fingertips, lips, and pressure points. It can be seen as early as **6 to 12 hours** after fetal death. The epidermis easily separates from the dermis due to the accumulation of fluid in the sub-epidermal layer. 2. **Analysis of Incorrect Options:** * **Coppery brown discoloration:** This occurs later (usually after 24 hours) as hemoglobin leaches out of the red blood cells and stains the tissues and visceral organs. * **Rancid smell:** Maceration is an **aseptic** process. A foul or rancid smell indicates secondary bacterial infection (putrefaction), which occurs only if the membranes are ruptured and the fetus is exposed to vaginal flora. * **Hypermobility of joints:** This is a late sign (usually after 3–4 days) resulting from the liquefaction of ligaments and soft tissues. **High-Yield Clinical Pearls for NEET-PG:** * **Spalding’s Sign:** Overlapping of cranial vault bones due to brain liquefaction (appears on X-ray/USG after 24–48 hours). * **Robert’s Sign:** Presence of gas in the fetal heart or great vessels (earliest radiological sign, seen within 12 hours). * **Deuel’s Halo Sign:** Edema of the fetal scalp causing a "halo" appearance on imaging. * **Key Distinction:** If the fetus is born with signs of putrefaction (greenish discoloration, foul smell), it indicates the amniotic sac was ruptured before delivery.

Q: Mummification is typically seen in which stage of intrauterine death?

Late intrauterine death. **Explanation:** **Mummification** in the context of intrauterine death (IUD) is a sterile process of dehydration and shriveling of the fetus. It occurs specifically in **Late Intrauterine Death** (Option B) because it requires a certain level of fetal development and specific environmental conditions within the womb. 1. **Why Late IUD is Correct:** For mummification to occur, the fetus must have reached a gestational age where the skin is developed enough to resist immediate maceration, and the amniotic fluid must be deficient or absorbed (oligohydramnios). In late IUD, if the membranes remain intact and the environment is sterile, the fetal tissues undergo slow dehydration, turning the fetus into a dry, shriveled, leathery, and brownish-black mass. 2. **Why Early IUD is Incorrect:** In early pregnancy (first trimester), fetal death usually leads to complete resorption of the embryo or the formation of a "blighted ovum." The tissues are too primitive and watery to undergo the mummification process. 3. **Why Option C is Incorrect:** Since the process is dependent on fetal maturity and specific fluid dynamics found only in later stages, it cannot occur in early IUD. **High-Yield Clinical Pearls for NEET-PG:** * **Maceration:** This is the more common process in IUD, characterized by aseptic autolysis in the presence of amniotic fluid. It begins with "skin slipping" (Spalding’s sign on X-ray). * **Prerequisite for Mummification:** It occurs only if the membranes are **intact** and the fetus is **not infected**. If membranes rupture, putrefaction (liquefaction) occurs instead. * **Lithopedion:** If a mummified fetus (usually extrauterine) undergoes calcification, it is known as a "Stone Baby." * **Key Difference:** Maceration = Wet/Aseptic Autolysis; Mummification = Dry/Dehydration.

Q: Which is the surest sign of identification?

Maceration. **Explanation:** **Maceration** is considered a **sure sign of intrauterine fetal death (IUFD)**. It is an aseptic autolysis of a fetus that has died in the uterus and remained in the amniotic fluid for at least 12–24 hours. The presence of maceration confirms that the fetus was dead before birth (stillborn) and did not die during or after delivery. This makes it a definitive "sign of identification" for a stillborn fetus in forensic and obstetric pathology. **Analysis of Options:** * **Maceration (Correct):** Characterized by skin peeling (slippage), softening of tissues, and the **Spalding sign** (overlapping of cranial bones). It only occurs in a sterile environment (the amniotic sac); if the membranes are ruptured and bacteria enter, putrefaction occurs instead. * **Mummification:** This is a process of preservation where the body dries up due to high temperature and low humidity. While it helps in identifying a body's features later, it is a post-mortem change, not a specific diagnostic sign of a state like IUFD. * **Hanging & Drowning:** These are modes/causes of death. While they have specific signs (e.g., ligature marks in hanging or diatoms in drowning), they are not "sure signs of identification" in the same pathological context as maceration. **High-Yield NEET-PG Pearls:** * **Timeframe:** Maceration begins with skin blebs at **12 hours** and skin peeling (desquamation) at **24 hours**. * **Spalding’s Sign:** Overlapping of fetal skull bones seen on X-ray/USG due to loss of intra-cranial pressure; typically appears 48–72 hours after death. * **Roberts’ Sign:** Presence of gas in the fetal heart and large vessels (earliest radiological sign, appearing at ~12 hours). * **Key Distinction:** Maceration = Aseptic (Sterile) Autolysis; Putrefaction = Bacterial decomposition.

Q: What is the approximate ratio of respired lung weight to body weight?

1:35. ### Explanation This question tests your knowledge of **Hydrostatic (Floatation) Tests** used in forensic pathology to differentiate between a stillborn fetus and a live-born infant who has breathed. **1. Why Option C is Correct:** The ratio of lung weight to total body weight is a key indicator of whether respiration has occurred. * **In a live-born infant (respired lungs):** Once the infant breathes, pulmonary circulation increases significantly, and the lungs become engorged with blood and air. This increases the weight of the lungs relative to the body. The established ratio for respired lungs is approximately **1:35**. **2. Why the Other Options are Incorrect:** * **Option D (1:70):** This is the ratio for **unrespired (stillborn) lungs**. In a fetus that has never breathed, the lungs are solid, liver-like (hepatization), and contain less blood, making them lighter relative to the body weight. * **Options A and B (1:10 and 1:20):** These ratios are physiologically incorrect for neonatal autopsies. A ratio of 1:10 would imply the lungs make up 10% of the body weight, which is disproportionately heavy even for a breathing adult. **3. High-Yield Clinical Pearls for NEET-PG:** * **Fodere’s Test (Static Test):** This refers specifically to the weight of the lungs. * *Stillborn:* ~30–40 grams. * *Live-born:* ~60–80 grams. * **Ploucquet’s Test:** This is the specific name for the ratio test described in the question (Lung weight : Body weight). * **Raygat’s Test (Hydrostatic Test):** Based on the principle that respired lungs float in water (Specific Gravity < 1.000), while unrespired lungs sink (Specific Gravity ~1.040–1.050). * **False Positives:** Decomposition (gas formation) can make stillborn lungs float. * **False Negatives:** Severe pneumonia, pulmonary edema, or atelectasis can make live-born lungs sink.

Q: What is the typical timeframe for the umbilical cord to turn black after birth?

2-3 days. ### Explanation The umbilical cord undergoes a predictable process of **dry gangrene (mummification)** after birth, which is a vital marker in forensic age estimation of a newborn. **1. Why Option A is Correct:** Immediately after birth, the umbilical cord is bluish-white and moist. Due to the absence of circulation and exposure to air, it begins to dry. By **24 hours**, the cord becomes yellowish and shriveled. By **2-3 days**, the cord turns **dark brown or black**, hard, and brittle. This change is a result of dehydration and the breakdown of hemoglobin. **2. Analysis of Incorrect Options:** * **Option B (5-7 days):** This is the typical timeframe for the **separation (sloughing off)** of the umbilical cord. A line of demarcation (redness) forms at the junction of the skin and the cord around the 3rd or 4th day, leading to detachment by the end of the first week. * **Option C & D (7-14 days):** These timeframes are associated with the **healing of the umbilical cicatrix (scar)**. After the cord falls off, the raw surface usually heals and epithelializes completely by the 10th to 14th day. **3. High-Yield Clinical Pearls for NEET-PG:** * **Mummification:** The process by which the cord dries is a classic example of dry gangrene. * **Vital Reaction:** The presence of a **red line of demarcation** at the base of the cord is a sign that the infant was born alive and survived for at least 3-4 days. * **Obliteration of Fetal Vessels:** * **Umbilical Arteries:** Close functionally at birth; anatomically obliterated by **2-3 days**. * **Umbilical Vein & Ductus Venosus:** Obliterated by **early 2nd week** (forming Ligamentum teres and Ligamentum venosum). * **Ductus Arteriosus:** Functional closure in 10-15 hours; anatomical closure by **10 days to 3 weeks**.

Q: Whiplash injury is commonly seen in which of the following conditions?

Shaken baby syndrome. **Explanation:** **Shaken Baby Syndrome (SBS)**, a severe form of physical child abuse, is the correct answer. It occurs when an infant is violently shaken, causing the heavy head to rotate uncontrollably on the relatively weak neck muscles. This repetitive acceleration-deceleration motion creates a **whiplash effect**, leading to the classic **"Triad of SBS"**: 1. **Subdural Hemorrhage:** Tearing of bridging veins. 2. **Retinal Hemorrhage:** Pathognomonic finding (seen in ~80% of cases). 3. **Encephalopathy:** Brain swelling or diffuse axonal injury. **Analysis of Incorrect Options:** * **Sudden Infant Death Syndrome (SIDS):** This is the sudden, unexplained death of an infant under one year of age, usually during sleep. It lacks evidence of trauma or whiplash. * **Munchausen Syndrome by Proxy:** A form of child abuse where a caregiver fabricates or induces illness in a child to gain attention. While it is a psychiatric/forensic entity, it does not specifically involve whiplash mechanics. * **Battered Baby Syndrome:** This is a broad term for repetitive physical abuse. While SBS is a subset of this syndrome, "whiplash injury" is specifically the defining mechanism of the shaking component (SBS) rather than general blunt force trauma (fractures/bruises) seen in typical battered babies. **High-Yield Clinical Pearls for NEET-PG:** * **Caffey’s Triad:** Another name for the clinical presentation of Shaken Baby Syndrome. * **Metaphyseal Bucket-handle fractures:** Highly specific radiological sign of child abuse (avulsion of the periosteum). * **Rib Fractures:** Posterior rib fractures are highly suggestive of non-accidental injury (squeezing the chest while shaking). * **Key Diagnostic Tool:** Non-contrast CT head and Dilated Fundoscopic Examination.

Q: Concealment of birth is punishable under which section of the Indian Penal Code?

Section 318 IPC. **Explanation:** **Correct Answer: D. Section 318 IPC** Section 318 of the Indian Penal Code (IPC) deals with the **concealment of birth by secret disposal of a dead body**. It states that whoever, by secretly burying or otherwise disposing of the dead body of a child (whether the child died before, during, or after birth), intentionally endeavors to conceal the birth, shall be punished with imprisonment up to two years, a fine, or both. This section applies regardless of whether the child was born alive or was a stillbirth. **Analysis of Incorrect Options:** * **Section 320 IPC:** Defines **Grievous Hurt**. It lists eight specific types of injuries (e.g., permanent loss of sight/hearing, emasculation, fracture) that qualify as grievous. * **Section 312 IPC:** Pertains to **causing miscarriage**. It punishes the voluntary causing of a miscarriage (abortion) with the woman's consent, provided it is not done in good faith to save her life. * **Section 317 IPC:** Deals with the **exposure and abandonment** of a child under twelve years of age by a parent or person having care of the child. Unlike Section 318, this section involves a living child. **High-Yield Clinical Pearls for NEET-PG:** * **Corpus Delicti:** In cases of concealment of birth, the "body of the crime" must be established, meaning the prosecution must prove a child was actually born. * **Hydrostatic Test (Raygat’s Test):** Often relevant in these cases to determine if the concealed infant was born alive (lungs float) or was a stillbirth (lungs sink). * **Section 315 IPC:** Act done with intent to prevent a child being born alive or to cause it to die after birth. * **Section 316 IPC:** Causing death of a quick unborn child by an act amounting to culpable homicide.

Q: All tests are used to detect live birth, except:

Gettler's test. **Explanation:** The correct answer is **Gettler’s test** because it is used to determine the cause of death in cases of **drowning**, not to establish live birth. It involves comparing the chloride content in the blood of the right and left ventricles of the heart. A significant difference indicates drowning in either fresh or saltwater. **Analysis of other options (Tests for Live Birth):** * **Ploucquet’s Test:** This is based on the ratio of lung weight to total body weight. In a stillborn, the ratio is approximately **1:70**, whereas, in a live-born infant who has breathed, the ratio increases to about **1:35** due to increased pulmonary vascularization. * **Fodere’s Test (Hydrostatic Test):** This is the most famous test for live birth. It relies on the principle that lungs that have breathed will float in water due to the presence of air, while stillborn lungs (atelectatic) will sink. * **Raygat’s Test (Static Test):** This involves the simple observation of the volume and weight of the lungs. Lungs that have breathed are voluminous, spongy, and cover the heart, whereas stillborn lungs are small, firm, and liver-like in consistency. **High-Yield Clinical Pearls for NEET-PG:** * **Wredin’s Test:** Detects the absence of the gelatinous plug in the middle ear (disappears after breathing/swallowing). * **Breslau’s Second Life Test:** Based on the presence of air in the stomach and intestines (Gastrointestinal Hydrostatic Test). * **False Positive Hydrostatic Test:** Can occur due to **putrefaction** (gas formation), which is why the test must be interpreted cautiously if decomposition is present.

Q: Which of the following conditions is associated with the radiological 'Spalding sign'?

Maceration. ### Explanation **Spalding sign** is a classic radiological finding indicative of **intrauterine fetal death (IUFD)**. It is specifically associated with **maceration**, a sterile form of decomposition that occurs when a fetus dies in utero and remains within the amniotic fluid. #### Why Maceration is Correct: Maceration leads to the softening and liquefaction of fetal tissues. As the brain matter liquefies and the supporting intracranial pressure drops, the bones of the fetal skull lose their alignment. This results in the **overlapping of the fetal skull bones** at the sutures. This radiological overlap is known as Spalding sign and typically appears 24 to 48 hours after fetal death. #### Why Other Options are Incorrect: * **Mummification:** This is a form of decomposition occurring in dry, airy conditions where the body dehydrates. In utero, mummification occurs if amniotic fluid is deficient (e.g., papyraceous fetus), but it does not typically produce the specific skull overlapping seen in maceration. * **Hanging:** This is a cause of death due to constriction of the neck. Radiological signs in hanging might include fractures of the hyoid bone or cervical vertebrae, but not Spalding sign. * **Drowning:** This involves death by submersion in liquid. While "maceration" of the skin (washerwoman’s hands) occurs in drowning victims, the specific radiological "Spalding sign" refers exclusively to fetal skull changes in IUFD. #### High-Yield Clinical Pearls for NEET-PG: * **Robert’s Sign:** The presence of gas in the fetal heart and great vessels (earliest radiological sign of IUFD, appearing within 12 hours). * **Deuel’s Halo Sign:** Increased translucency (edema) around the fetal head due to scalp separation. * **Timeframe:** Maceration begins within 24 hours of death; if a fetus is born with signs of maceration, it proves the death was intrauterine and not a live birth.

Question 1

Wreden's test is used to demonstrate which of the following?

Accepted Answer

Live birth

Answer

Insanity

Answer

Putrefaction

Answer

Assault

Question 2

What is the earliest sign of maceration?

Accepted Answer

Skin slippage

Answer

Coppery brown discoloration

Answer

Rancid smell

Answer

Hypermobility of joints

Question 3

Mummification is typically seen in which stage of intrauterine death?

Accepted Answer

Late intrauterine death

Answer

Early intrauterine death

Answer

Both early and late intrauterine death

Answer

None of the above

Question 4

Which is the surest sign of identification?

Accepted Answer

Maceration

Answer

Mummification

Answer

Hanging

Answer

Drowning

Question 5

What is the approximate ratio of respired lung weight to body weight?

Accepted Answer

1:35

Answer

1:10

Answer

1:20

Answer

1:70

Question 6

What is the typical timeframe for the umbilical cord to turn black after birth?

Accepted Answer

2-3 days

Answer

5-7 days

Answer

7-10 days

Answer

10-14 days

Question 7

Whiplash injury is commonly seen in which of the following conditions?

Accepted Answer

Shaken baby syndrome

Answer

Sudden infant death syndrome

Answer

Munchausen syndrome

Answer

Battered baby syndrome

Question 8

Concealment of birth is punishable under which section of the Indian Penal Code?

Accepted Answer

Section 318 IPC

Answer

Section 320 IPC

Answer

Section 312 IPC

Answer

Section 317 IPC

Question 9

All tests are used to detect live birth, except:

Accepted Answer

Gettler's test

Answer

Ploucquet's test

Answer

Fodere's test

Answer

Raygat's test

Question 10

Which of the following conditions is associated with the radiological 'Spalding sign'?

Accepted Answer

Maceration

Answer

Mummification

Answer

Hanging

Answer

Drowning

Infanticide — MCQs

Infanticide — MCQs

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