Post Mortem Changes and Bodies from Water Flashcards Preview

Forensic Medicine > Post Mortem Changes and Bodies from Water > Flashcards

Flashcards in Post Mortem Changes and Bodies from Water Deck (89)
Loading flashcards...
1

How long does it take for irreversible brain damage?

3-9 minutes

2

In the hospital, what four things are death determined by?q

1. Cessation of breathing
2. No response to pain or voice
3. No pupillary response to light
4. Cessation of pulse and heart beat

3

How many doctors establish brainstem death?

Two

4

What two organs show the most cellular resilience to hypoxia?

Bone and corneas (48 hours)

5

What two organs show the least cellular resilience to hypoxia?

Brain and spinal cord (4 minutes)

6

What do post mortem changes do to confirmation?

They confirm death. Resuscitation is futile.

7

What is Post Mortem Interval

Post-mortem interval (PMI) is the time that has elapsed since a person has died.

8

What colour will abrasions which occur in life be?

Red

9

What colour will abrasions that occur in death be?

Orange and parchmented

10

What sort of sites do animal artefacts occur in?

Exposed

11

What are these artefacts of:

Entry impact
Washerwoman change
Gooseflesh (Cutis anserina)

Artefacts of immersion

12

What is skin splitting an artefact of?

Fire and heat

13

What can extradural haematoma be an artefact of?

Fire and heat

14

What post mortem changres occur in hours?

Algor mortis
Livor mortis
Rigor mortis

15

What post mertem changes occur in days to weeks?

Putrefaction

16

What two post mortem changes occur after months?

Skeletonisatin
Mummification

17

Chill of death?

Algor mortis

18

Darkening of death?

Livor mortis

19

Stiffening of death?

Rigor mortis

20

What can be a useful indicator of PMI in the first 24 hours of death, only in temperate and cool climates?

Algor mortis

21

When assessing for algor mortis what method of determining core body temperature must you avoid in sexual cases?

Anal

22

When assessing for algor mortis what method of determining core body temperature could you use instead of anal?

Liver by subcostal stab- creates a wound

23

Loss of heat from the body due to conduction, convection and radiation. Little heat lost by evaporation

Algor mortis

24

Who will cool quicker- an obese individual or a thin person?

obese- larger surface area

25

What can there be a slight rise of temperature in after deatgh?

Decomposition

26

What is Henssge's Normogram based on?

a mathematical cooling model

27

What does Henssge's Normogram allow for correction of?

Body weight
Clothing
Drafts
Immersion in water

28

What does Henssge's Normogram assume?

Normal body temp at death
No ariation in ambient temperature during cooling period

29

What are some exclusions to using Henssge's Normogram?

1. Near strong heat source
2. Near cooling source
3. Floor tiles
4. Abnormal body temperature at death
5. Body moved between death andtemperature reading i.e. fridge

30

How much faster does body cool in still water than air?

Twice as fast