Loading....
Coupon Accepted Successfully!

Forensic Medicine

Open Flashcards

Asphyxia

Question
10 out of 60
 

At autopsy, a body is found to have copious fine leathery froth in mouth & nostrils which increased on pressure over chest. Death was likely due to: (LQ)



A Epilepsy
B Hanging

C Drowning
D Opium poisoning

Ans. C
Drowning

Internal findings in Drowning-

The presence of a fine, white froth in air passages.

The bulky and oedematous condition of the lungsQ, which exude copious frothy blood stained fluid secretion.

The presence of water, mud, weeds etc. in the stomach or small intestine or both.

The presence of water in the middle ear.

Difference of chloride contents of blood in the right and the left hearts (> 25% difference is significant)– Gettler’s testQ.

In fresh water drowning water pass from the lungs to the blood and the blood gets diluted by as much as 72% in 3 minutes- hypervolemiaQ & hemodilutionQ hemolysisQincreaseQ K+ level (Hyperkalemia) heart stops in diastole. (left side of heart showsQ– chloride content up to 50% lower than usual), more dangerous than sea-water drowning.

In sea-water drowning water is absorbed from the pulmonary circulation into the alveolar spaces haemoconcentrationQ (left side of heart showsQ chloride content increase up to 30- 40% more than usual), K+ (HypokalemiaQ).

a. Finding of diatoms by microscopic examination of tissues from brain, liver and bone marrow of long bonesQ such as femur, tibia, and humerus or sternum. Diatoms are microscopic, unicellular, silica coated algae. Diatoms are examined by acid digestion technique using conc. nitric acid. The deposit is examined under phase contrast or dark ground illumination. Only diatoms upto 60 microns enter the pulmonary circulation during drowning.

Asphyxia Flashcard List

60 flashcards
1)
2)
3)
4)
5)
6)
7)
8)
9)
10)
11)
12)
13)
14)
15)
16)
17)
18)
19)
20)
21)
22)
23)
24)
25)
26)
27)
28)
29)
30)
31)
32)
33)
34)
35)
36)
37)
38)
39)
40)
41)
42)
43)
44)
45)
46)
47)
48)
49)
50)
51)
52)
53)
54)
55)
56)
57)
58)
59)
60)