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Histopath LEC > CHANGES DURING SOMATIC DEATH > Flashcards

CHANGES DURING SOMATIC DEATH Flashcards

1
Q

Primary Changes

A

Circulatory Failure
Respiratory Failure
CNS Failure

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2
Q

Secondary Changes

A

ARLP DPA

Algor mortis
Rigor mortis
Livor mortis
Post-mortem Clotting

Dessication
Putrefaction
Autolysis

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3
Q

means that the patient has died.

A

somatic death

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4
Q

Loss of ECG rhythm

A

Circulatory failure

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5
Q

Cessation of respiration

A

Respiratory failure

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6
Q

Loss of EEG rhythm

A

CNS failure

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7
Q

Primary Changes
• Occurs______, then death follows

A

4-6 minutes

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8
Q

This will be experienced by the body during complete cessation or loss of metabolic and functional activities of the body

A

Primary change

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9
Q

• Cardiac function ceases
• Flat electrocardiogram (ECG)
• Absence of heartbeat

A

Circulatory Failure

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10
Q

Decreased O2 and increased
CO2

Absence of respiratory sounds and movements

A

Respiratory Failure

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11
Q

CPR prevents

A

Circulatory and Respiratory failure

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12
Q

M2M prevents

A

Respiratory failure

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13
Q

• Loss of coordination and reflexes

Absence of stem reflex
Absence of electroencephalogram (EEG) activity

A

CNS Failure

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14
Q

• This can be presented or observed using the naked eye.
• Usually follows after death
• Can be observed during post-mortem examination

A

Secondary changes

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15
Q

Body temperature decreases by
7°F per hour

A

Algor mortis

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16
Q

Algor mortis

Body temperature decreases by…

A

7°F per hour

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17
Q

The first demonstrable change observed in a dead body

A

Algor mortis

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18
Q

Body temperature will adjust to the surroundings

A

Algor mortis

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19
Q

Rigidity or stiffening of muscles due to lack of ATP

A

Rigor mortis

20
Q

Rigor mortis

• First appears in the….

• Observed in_____, followed by____, then_____

A

involuntary muscles of the heart

eyelids
neck
lower extremities

21
Q

Rigor mortis

Starts______
Completes______
Persists for_____

A

2-3 hrs post-mortem

6-12 hrs post-mortem

3-4 days

22
Q

Rigor mortis

• After 3-4 days,______ occurs due to breakdown of contracted muscles

A

relaxation

23
Q

First seen in the muscles of the head and the neck, down to the lower extremities.

A

Rigor mortis

24
Q

• Purplish discoloration of skin due to blood stasis

A

Livor Mortis

25
Q

Livor mortis is differentiated from

A

Ecchymosis

26
Q

These are bruises before death

A

Ecchymosis

27
Q

This is due to stoppage of blood circulation

A

Livor mortis

28
Q

If you put pressure on a specific area where there is discoloration, it will disappear then reappear when the pressure is released.

A

Livor mortis

29
Q

CAUSE

Livor mortis:
Ecchymosis:

A

Post-mortem stasis of blood
Trauma before death

30
Q

APPLICATION OF PRESSURE

Livor mortis:
Ecchymosis:

A

Discoloration disappears
No disappearance

31
Q

AFTER INCISION

Livor mortis:
Ecchymosis:

A

Has oozing blood
No oozing of blood

32
Q

Occurs immediatelv after death
Apparent only in autopsy

A

Post Mortem Clotting

33
Q

APPEARANCE

POST MORTEM CLOT:
ANTE-MORTEM CLOT:

A

Upper layer is clear (chicken fat);
RBC settled at the lowest part of blood vessels (currant jelly)

Tangled; irregular fibrin

34
Q

SHAPE

POST MORTEM CLOT:
ANTE-MORTEM CLOT:

A

Assumed blood vessel shape

Seldomly assumes blood vessel shape

35
Q

CONSISTENCY

POST MORTEM CLOT:
ANTE-MORTEM CLOT:

A

Rubbery

Non-rubbery

36
Q

NEXT 3 STAGES OF DEATH

A

Dessication
Putrefaction
Autolysis

37
Q

The next 3 stages of death occurs______ and leads to the_______

A

simultaneously

total digestion of cells

38
Q

• General drying and wrinkling of fluid-filled organs

A

Desiccation

39
Q

Desiccation

Most evident on the_____ and the____

A

cornea

anterior chamber of the eye

40
Q

Greenish blue discoloration with Odor

A

Putrefaction

41
Q

Putrefaction

______discoloration with Odor

A

Greenish blue

42
Q

Putrefaction

Release of gas due to invasion of the tissue by a bacteria called ________

A

Clostridium welchii

43
Q

= sullphahemoglobin (green)

A

Hydrogen sulfide + hemoglobin

44
Q

Hydrogen sulfide + hemoglobin =

A

sullphahemoglobin (green)

45
Q

“Self-destruction”

The self-digestion of the cells by their own enzymes

A

Autolysis

46
Q

Autolysis

First external sign is the______

A

whitish appearance of cornea

47
Q

T or F

RBC can undergo Autolysis

A

FALSE

bcs wala siya nucleus

Histopath LEC (37 decks)

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