Priapism occurs with

- See more at: http://aiims-delhi.blogspot.in/2014/12/aiims-pgmee-forensic-medicine-questions.html#sthash.iEq8XDKr.dpuf

A. Spanish fly                                     B. Sea snake bite
C. Scorpion bite                                  D. Rattle snake bite.

Answer: A.

Explanation:

• Spanish fly or Cantherides is also known as Blister beetle.
• The active principle of its dried body powder is 'cantharidin'. When applied to skin, blisters or vesicle appear.
• When it is swallowed, it produces    
• 1. burning sensation in the mouth, throat, esophagus, stomach and abdomen
• 2. intense thirst and haematemisis.
• 3. diarrhoea with blood and mucus.
• 4. nephrotoxicity
• 5. priapism(painful and persistent erection of penis) in males.
• 6. in females engorgement of vulva and abortion may occur.
• 7. finally convulsions, coma and death occurs.

Medico legal importance:

•     accidental poisoning may occur from eating fowls which have ingested cantharides, use of blistering plaster that contain cantharis.
• used as an aphrodisiac or abortifacient.

Read More

A driver wearing seat belt, suddenly applies brakes to avoid a collison. Which of the following body parts is most likely to be injured?

     A. Spleen                                    B. Mesentry

     C. Liver                                       D. Abdominal aorta.

Answer: B.

Explanation: 

• Sudden break will cause acute flexion of body over the lap strap of seat belt.
• This kind of injury can give rise to 'seat belt syndrome' which includes small intestine avulsions, intestinal, omental and mesenteric lacerations and intestinal contusions and perforations.
• Rupture of spleen, liver, pancreas, caecum and bladder occur due to compression between belt and vertebrae.
• Abdominal aorta can be crushed. Acute hyper flexion can cause fracture of lumbar vertebrae usually at the second or third segment of interspace.
• Seat belts reduce the risk of death by about 40%. It restrains the body against deceleration, keeping it away from windscreen, steering wheel and other obstructions. It prevents ejection from the vehicle onto the road.

- See more at: http://aiims-delhi.blogspot.in/2014/12/aiims-pgmee-forensic-medicine-questions.html#sthash.iEq8XDKr.dpuf

Read More