Forensic Medicine: AIIMS 2017-2020 (Solved Papers)

Q-1. Section of IPC for punishment to medical negligence infecting a normal healthy person with HIV +ve needle
a) 166 B
b) 202
c) 203
d) 269

Answer: 269
Section 269, Indian Penal Code:
Negligent act likely to spread infection of disease danger­ous to life (Imprisonment up to six months)

Q-2. Pigmentation seen in dead body is due to

a) Reduced hemoglobin
b) Sulf-methemoglobin
c) Methemoglobin
d) Hematin crystal

Answer: Sulf-methemoglobin
First external sign of putrefaction in a body lying in air is usually a greenish discoloration of the skin over the region of cecum.
Color results from the conversion of hemoglobin of blood into sulf-methemogloboin by hydrogen sulfide formed in large intestine and escaping into the surrounding tissue.
The color appears in 12 to 18 hours in summer and in one to two days in winter.
Green coloration then spreads over the entire abdomen, external genitals and then patches appear successively on the chest, neck, face, arms and legs.
The putrefactive bacteria spread most easily in fluid and tend to colonize the venous system. The superficial veins especially over roots of limb, thighs, side of abdomen, shoulder, chest and neck are stained greenish brown or purplish red (Linear branching pattern) due to the hemolysis of RBCs in blood vessels, which stains the wall of the vessel and infiltrates into the tissue, giving a marble appearance. This occurs soon, but is prominent in 36 to 48 hours.
Important point:
Intensity of color in post mortem hypostasis depends upon the amount of reduced hemoglobin in blood.

Q-3. Unidentified person from roadside is brought by police to emergency room with disorientation, vitals stable and bilateral pin point pupil. Diagnosis is
a) Pontine hemorrhage
b) Opioid poisoning
c) Dhatura
d) Barbiturate poisoning

Answer: Opioid poisoning
Opioid poisoning:
Moist perspiring skin
Slow pulse
Triad of coma, pinpoints immobile pupils and respiratory depression

Q-4. Fetus of weight 1000 g, crown rump length 23 cm, meconium in intestine, eye lid open and pupillary membrane disappear.
Age of fetus
a) 5 months
b) 6 months
c) 7 months
d) 8 months

Answer: 7 months
Assessment of Age in Fetus:
At the end of First Month:
Length is about 1 cm
Weight is about 2.5 gm
At the end of Second Month:
Length is about 4 cms
Weight is about 10 gm
At the end of Third Month:
Length is about 9 cms
Weight is about 30 gm
Eyes Closed and Pupillary Membrane appears
At the end of Fourth Month:
Length is about 16 cms
Weight is about 120 gm
Lanugo hair is seen over the body
Meconium is found in the duodenum
At the end of Fifth Month:
Length is about 25 cm
Weight is about 400 gm
Meconeum is seen at the beginning of large intestine
At the end of Sixth Month:
Length is about 30 cm
Weight is about 700 gm
The testes are seen close to the Kidney
At the end of Seventh Month:
Length is about 35 cm
Weight is about 900-1200 gm
Crown-rump length is about 23 cms
Eyelids open and pupillary membrane disappears
Meconium is found in the entire large intestine
Testes are found at the external inguinal canal
At the end of Eight Month:
Length is about 40 cm
Weight is about 1 Kg to 2.5 Kg
Left testis is present in the scrotum
At the end of Ninth Month:
Length is about 45 cm
Weight is about 2.5 Kg to 3 Kg
Meconeum is seen at the end of large intestine

Q-5. A 28 year old man consumes an unknown substance and was brought to emergency department. He was unconsciousness and kerosene odor was coming from his mouth. His BP was 80/60 mm/Hg and pulse rate 110/min.
Which of the following will not be done in emergency management in emergency room?
a) Gastric lavage
b) Atropine
c) Vaso-pressure
d) Maintain airways

Answer: Gastric lavage
Kerosene poisoning: Management
Gastric evacuation for pure petroleum distillate or turpentine ingestion is not recommended.
Maintain airways
Absorption of ingested kerosene can be slowed by giving 250 ml of liquid paraffin orally.

Q-6. Burns – how to identify airway involvement A//E
a) Hoarseness & stridor
b) Singeing of eyebrows and hair
c) Yellow colored sputum
d) Blistering or edema of the oro-pharynx

Answer: Yellow colored sputum
Assessment of airways in burn patient:
Singed nasal and facial hairs
Dysphonia and stridor
Blistering or edema of the oro-pharynx
Carbonaceous sputum
Important point:
Yellow colored sputum suggests an airway infection

Q-7. Patient comes with nausea, vomiting and ascending paralysis. Diagnosis of poisoning is
a) Opium
b) Dhatura
c) Conium maculatum
d) Strychnos nux-vomica

Answer: Conium maculatum
Conium maculatum (Hemlock):
The plant contains coniine alkaloids highest in the unripe fruit and in seed, in leaves especially at flowering time.
Clinical presentations:
Nausea, vomiting and diarrhoea
Mental confusion, Tremor, ataxia and ascending progressive motor paralysis
Coma and death due to respiratory failure

Q-8. Surgeon can perform an emergency surgery when the patient is not in a condition to give consent under
a) Sec 91 IPC
b) Sec 92 IPC
c) Sec 87 IPC
d) Sec 89 IPC

Answer: Sec 92 IPC
Sec 92 IPC:
Act done in good faith for benefit of a person without con­sent
Nothing is an offence by reason of any harm which it may cause to a person for whose benefit it is done in good faith, even without that person’s consent, if the circumstances are such that it is impossible for that person to signify consent, or if that person is incapable of giving consent, and has no guardian or other person in lawful charge of him from whom it is possible to obtain consent in time for the thing to be done with benefit

Q-1. Finger printing (FINDER) involves recording prints of 8 fingers. Which finger pair is excluded?
a) Ring finger
b) Thumb
c) Little finger
d) Middle finger

Answer: Little finger
FINDER or Fingerprint Reader:
In this system prints of eight fingers (excluding little fingers) are recorded.

  1. In examination of a victim of sexual assault, toluidine blue dye test is done to identify:
    a) Recent micro injuries
    b) Healed micro injuries
    c) Dried seminal stains
    d) Clotted blood

Answer: Recent micro injuries

  1. Which of the following principles govern biomedical research in human subjects?
    a) Geneva declaration
    b) Helsinki declaration
    c) Hippocratic oath
    d) International coded of medical ethics

Answer: Helsinki declaration

  1. According to Transplantation of Human Organs Act, which of the following doctors are not authorized to declare brainstem death?
    a) RMP in-charge of the hospital
    b) Treating physician
    c) Neurosurgeon
    d) Surgeon doing liver transplant

Answer: Surgeon doing liver transplant

  1. A 2-year –old child suffers flame burns involving face, bilateral upper limbs and front of chest and abdomen. What is the body surface area involved?
    a) 42 %
    b) 54 %
    c) 40 %
    d) 60 %

Answer: 42 %

  1. In assessing infant deaths, Ploucquet’s test involves:
    a) Change in specific gravity of lungs
    b) Presence of air in stomach and duodenum
    c) Change in partial weight of lungs
    d) Air in middle ear

Answer: Change in partial weight of lungs

  1. After a building collapse, among remnants, a person’s length of humerus is 25.5 cm. What is the predicted height of this person?
    a) 146 cm
    b) 130 cm
    c) 90 cm
    d) 110 cm

Answer: 130 cm

  1. The following is a victim of a firearm injury. What is the suspected distance of the shot?

a) Close range
b) Intermediate range
c) Pointblank range
d) Distant shot

Answer: Intermediate range

  1. What is the predicted bone age from the wrist radiograph given below?

a) 18-19 years
b) 20-22 years
c) <15 years
d) <17.5 years

Answer: <17.5 years

  1. What does this picture depict?

a) Pugilistic attitude
b) Postmortem caloricity
c) Cadaveric spasm
d) Rigor mortis

Answer: Pugilistic attitude

  1. The following patient has what type of injury?

a) Laceration
b) Abrasion
c) Incised wound
d) Chop wound

Answer: Laceration