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Medicolegal Death Investigation > Asphyxia > Flashcards

Asphyxia Flashcards

2
Q

Define Asphyxia (RC)

A

an inadequate oxygenation of tissue

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3
Q

Name some types of asphyxia (RC)

A

-suffocation
-strangulation
-chemical

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4
Q

Define suffocation (RC)

A

the deprivation of oxygen in the environment or blockage of the external or internal air passages.

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5
Q

True or False:
There is a postmortem laboratory test for hypoxia (RC)

A

False

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6
Q

True or False:
Petechiae is only seen in the eyes (RC)

A

False

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7
Q

What is partial oxygen deprivation?(RR)

A

Hypoxia causes unconsciousness

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8
Q

What is the main component of asphyxia?(RR)

A

Respiratory, vascular and nervous

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9
Q

What is anoxia? (RR)

A

Means total oxygen deprivation may lead to death.

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10
Q

What is the lack of oxygen in the environment or as a result of an obstruction of the air passages?(RR)

A

Suffocation

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11
Q

On the scene what should you look for smothering cases?(RR)

A

Look for signs of a struggle but also any items that may have saliva on them.

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12
Q

What are the two main categories for asphyxia ? (TM)

A

Mechanical and chemical asphyxia

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13
Q

Define Hypoxia (TM)

A

Partial oxygen deprivation which can cause unconsciousness and is mainly seen with chronic cigarette smokers

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14
Q

What are the types of asphyxia? (TM)

A

Suffocation, mechanical, chemical, drowning, and strangulation.

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15
Q

What is positional asphyxia? (TM)

A

This is when the position of the body part or part of the body leads to airway restrictions, vascular compression, or breathing fatigue.

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16
Q

What is compression (traumatic) asphyxia? (TM)

A

This is basically compression of the chest with a heavy object. External pressure in the body that prevents physiological respiration.

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17
Q

What is Hyperextension and Hyperflexion? (DG)

A

Hyperextension is head backwards
Hyperflexion is head forward

18
Q

What is the difference between chocking and smothering?(DG)

A

Choking is an internal obstruction
Smothering is an external obstruction

19
Q

True or False: Homicidal ligature mark is an inverted ā€œVā€ appearance. (DG)

A

False! suicidal ligature marks leave that behind

20
Q

What are the 2 types of special asphyxia? (DG)

A

Closed environment an autoerotic asphyxia

21
Q

What should you look for in the body of a chemical asphyxia? (DG)

A

The exact position of the body, where lividity is and the color.

22
Q

Manual strangulation (HC)

A

results from the pressure of a hand, arm, or other limib against the neck which causes compression

23
Q

Ligature strangulation (HC)

A

pressure of the neck caused by a constricting band or object that is tightened by a force other than body weight

24
Q

Hangings (HC)

A

strangulation by means of a rope, cord, or similar ligature tightened by the weight of the body

25
Q

Chemical asphyxia (HC)

A

when atmosphere breathed lacks sufficient oxygen to sustain life or chemical is present that replaces oxygen

26
Q

what type of asphyxia occurs as a result of body position restricting airways or vascular compromise (EMM)

A

positional asphyxia

27
Q

examples of pathological asphyxia deaths? (EMM)

A

Anaphylaxis- allergic reaction that restricts airways
COPD-

28
Q

examples of things that cause chemical asphyxia (EMM)

A

carbon monoxide, nitrogen gas, helium

29
Q

describe closed environments asphyxia deaths (EMM)

A

happens as a result of being in a closed small space with little to no airflow (like a closet)

30
Q

Describe autoerotic asphyxia (EMM)

A

ligatures are used to restrict breathing in order to stimulate sexual pleasure, resulting in an accidental death

31
Q

(TJ) True or false. Asphyxia is when blood is able to reach the brain.

A

False

32
Q

(TJ)True or false. Asphyxia can be choking by bags, ropes, or hands.

A

True

33
Q

(TJ)Peticial hemorrhages are typically present in suffocation

A

True

34
Q

(TJ) What are three types of asphyxia?

A

Suffocation, strangulation, and mechanical

35
Q

(TJ)You should look for fingernail markings or other signs of struggle on the decedent to help determine the suspect.

A

True

36
Q

(TJ)

A

Medicolegal Death Investigation (19 decks)

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