Late Pm Changes

Question 1

What are the late pm changes

Answer 1

Decomposition:autolysis,putrefaction
Adipocere
Mummification
Embalming

Question 2

First external sign of autolysis

Answer 2

Clouding of cornea

Question 3

Main agent for putrefaction

Answer 3

Clostridium welchii (lecithinase)

Question 4

What are the 3changes in putrefaction

Answer 4

Color
Gas
Liquefaction

Question 5

What are the 3 color changes seen

Answer 5

Reddish brown(aorta)
Greenish(right iliac fossa)
Marbling(blood vessels along skin)

Question 6

Express time since death by changes in putrefaction

Answer 6

Right iliac fossa (12 to 18 hours in summer 1 to 2 days in winter)
Marbling (2 to 3 days)
Liquefaction(5 to 10 days)

Question 7

Antemortem blisters vs post-mortem blisters

Answer 7

Burns vs gas production due to decomposition
Reddish base vs pale base
Protein fluid vs gas

Question 8

What are the gas changes in body

Answer 8

Blisters
Rigidity
Purging
Foamy liver

Question 9

Poisons which delay putrefaction

Answer 9

Strychnine
Metals
Carbolic acid

Question 10

Time for adipocere and mummification

Answer 10

3 weeks to 3 months

3 months to 12 months

Question 11

Factors for adiposere

Answer 11

Warm climate
Moisture
C.welchii
Still air
Intrinsic lipase

Question 12

Factors for mummification

Answer 12

Dry hot climate
Free flowing air

Question 13

Embalming fluid constituents

Answer 13

Preservatives: formalin/formaldehyde/methanol
Germicide:phenol
Buffer:sodium borate
Wetting agent:glycerine
Anticoagulant:citrate
Dye:eosin
Vehicle:water