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MOD > Forensics > Flashcards

Forensics Flashcards

1
Q

What is the late arriving beetle that feed on dried cadaver?

A

HIDE beetle

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2
Q

Which beetle arrives after the flies?

A

Rove/ CArrion

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3
Q

What is the term for body temperature post mortem?

A

algor mortis

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4
Q

A Body was found feeling warm and rigid. What is his approximate time since death?

A

3-8 hours

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5
Q

A Body was found feeling cold and not stiff. What is his approximate time since death?

A

dead more than 36 hours

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6
Q

A body was estimated to have died between 8-36 hours. What condition would you have found the body?

A

Cold and stiff

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7
Q

A body dead for less than 3 hours is described as ?

A

warm and NOT stiff

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8
Q

A soldier in war kills his enemy. What is the manner of death of this enemy?

A

Homicide

simply the killing of one person by another (can be legal or illegal)

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9
Q

What is the difference between homicide and murder?

A

Murder is a homicide committed with “malice aforethought.”

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10
Q

Who can legitimately certify death in The US?

A

forensic pathologist?

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11
Q

What are the 5 manners of death?

A
  1. natural
  2. homicide
  3. suicide
  4. accident
  5. undetermined

THESE ARE THE ONLY MANNERS OF DEATH

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12
Q

Who signs off a death certificate for someone who died of natural causes?

A

Licensed physician

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13
Q

Who signs off a death certificate for someone who died of anything OTHER than natural causes?

A

Medical Examiner

also justice of the peace and coroners in certain cases with limited resources

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14
Q

Which systems of the body are most susceptible to ionozing radiation injury?

A

Hematopoietic
Lymphatic System

  • pts receiving cancer therapy require routine CBC to assure that their red cell and white cell count are NORMAL
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15
Q

Pt receiving cancer radiation therapy requires which routine blood test and why?

A

CBC with diff - pts receiving cancer therapy require routine CBC to assure that their red cell and white cell count are NORMAL b/c radiation injury attacks the hematopoietic and lymphatic system the most

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16
Q

What structures of the body are affected by IONizing radiation EARLY on ?

A
  1. Gonads (testis, ovaries)

2. Blood and bone marrow (thrombocytopenia, anemia, lymphopenia)

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17
Q

What structures of the body are affected by IONizing radiation LATER on ?

A
  1. muscle
  2. liver
  3. BRAIN
  4. kidney

because these have LOW rate of proliferation

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18
Q

Stabbing and gunshot wounds are considered:

a. manner of death
b. mechanism (immediate)
c. cause of death. (proximate)

A

C. Cause of death

CAUSES the final pathophysiological event

19
Q

Hemorrhage and cardiorespiratory arrest are considered:

a. manner of death
b. mechanism (immediate)
c. cause of death. (proximate)

A

B. Mechanism

final pathophysiological event

20
Q

A death by lethal injection is considered a ?

A

Homicide: taking someones life (legal or not)

21
Q

What significant bruise color can help age bruises?

A

Yellow = @ 18 hours or older

22
Q

IN which type of injury is the epidermis injured by friction?

A

Abrasion

23
Q

Characterize bleeding in abrasions?

A

Abrasions OOZE

DOES NOT BLEED PROFUSELY

24
Q

What type of blunt force injury results in reproduction of the pattern of injury on the body

A

patterned abrasion

25
Q

How is nature/ severity of wound affected by time and area?

A

inversely proportional

BIIGGER area= less severity

26
Q

Describe what happens to a persons resting metabolic state when they have extensive surface area burns?

A

HYPERmetabolic state

associated with excess heat loss and increased need for nutritional support

27
Q

What is the benefit of excision and grafting burn wound?

A

prevents ORGAN system failure from burn sepsis

pg 427

28
Q

What are the 3 things that can result from hypothermia?

A
  1. heat stroke
  2. heat cramps
  3. heat exhaustion
29
Q

What receptor is deranged from a heat stroke?

A

RYRI

it regulates calcium and causes muscle contraction and heat production

30
Q

Direct effects of HYPOthermia are mediated via ______________ and indirect effects are mediated by _____________

A
  1. high salt concentrations ( damage cells)

2. circulatory changes (edema and hypoxia)

31
Q

Most likely to have gangrene with hypo or hyperthermia?

A

HYPOthermia due to circulatory disruptions from chilled temps

32
Q

What occurs if pt has sustained contact with electrical current?

A

Tetanic muscle spasm

can result in chest wall spasm and ultimately death by asphyxxia

33
Q

What damage can be caused by HIGH voltage injury?

A

extensive burns

34
Q

What damage can be caused by LOW voltage injury?

A

ventricular fibrillation

35
Q

What type of tissue is extremely vulnerable to ionizing radiation? List examples?

A

bone marrow, gonads, lymphoid tissue, mucosa of GI

because they have HIGH rate of proliferation

36
Q

Subintimal fibrosis is a morphologic feature of ______________?

A

ionizing radiation causing vascular injury

37
Q

Thrombocytopenia, anemia, marrow aplasia, neutropenia are alll resutls of ACUTE oR CHRONIC radiation?

A

ACUTE

38
Q

Fibrosis is a result of ACUTE or CHRONIC radiation?

A

CHRONIC

39
Q

What causes the development of ‘second cancers”?

A

past history of radiation therapy for cancer

40
Q

Rifling type of a gun is useful when performing an autopsy for?

A

identifying the type of gun

41
Q

What is the primary focus when a mass disaster occurs?

A

safeguarding. : getting live pple safe

42
Q

Long guns are ________velocity and handguns are ______velocity

A

HIGH; LOW

43
Q

Describe an exit GSW of the skull?

A

not well circumscribed, beveled

44
Q

The stippling from gunpowder is typical for what type of gunshot?

A

Intermediate

MOD (13 decks)

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