Forensics Flashcards

1
Q

What are the two choices for manner of death?

(a) Who can sign the death certificate?

A

Natural or violent

(a) If natural- any physician can sign the death certificate. If violent, only the medical examiner or coroner can sign

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What is considered a homicide by a medical examiner?

A

A death at the hands of another, irregardless of intent (so not like you necessarily meant to kill the person)

-still a homicide if a cop shoots a murder etc

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Man gets shot in the neck, dies a few days later b/c he can’t eat

(stupid example but just do it)

What is the

(a) manner of death
(b) proximate cause of death
(c) immediate cause of death
(d) Mechanism of death

A

Man gets shot in the neck, dies a few days later b/c he can’t eat

(a) Manner of death = violent, homicide
(b) Proximate cause of death = GSW to the neck
(c) Immediate cause of death = inability to eat
(d) Mechanism of death = starvation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

How are natural deaths classified?

A

Classified 1-5 w/ decreasing certainty

So 1 = totally certain that’s the cause
2= most common, disease w/ lethal potential and consistent history and circumstance
5= no effing idea

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Differentiate a cut and a stab

A

Cut = longer on the skin than it is deep

Stab = deeper than it is wide on the skin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Are most pedestrians run over or run under?

A

Run under- impact occurs below their center of gravity => often knocked upwards (ex: onto the hood of the car)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

When do you see fowling?

(a) How to distinguish from stippling

A

Fowling = residue from a GSW that was just a few inches (

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

When do you see stippling?

A

Stippling = abrasion of the skin due to unburned gun powder after a GSW
-seen w/ intermediate range of fire (6-30 inches)

-stippling can’t be wiped away

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What would be more regular- entry or exit bullet wound?

A

Duh the entry- it’s going straight when it hits you

-exit wound super irregular (coursed thru tons of tissue and shit)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Why is it often hard to track new street drugs w/ panels?

A

B/c these drugs are modified so quickly that they easily evade previously testable measures
-especially synthetic drugs, tests have to be updated very recently to keep up

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Is K2 legal?

A

Yup, it’s chemically modified

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Why do you bring blood into the syringe?

A

To make sure no drug gets left into the syringe (ew…)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Maltese cross on histology is indicative of what type of injection

A

When drugs are injected w/ binders and fillers (to increase weight)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Describe the mechanism of a vein becoming ‘unusable’ to an IVDU

A

First a vein gets infected (called phlebitis) which cause clotting (thrombosis) which eventually becomes fibrotic
-fibrotic = no longer has blood going thru it => vein no longer usable for an intravenous drug user

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Differentiate skin popping and mainlining

A

Skin popping = inject into skin and subcutaneous tissue
-last resort sometimes done when no more viable veins (b/c all are fibrotic)

Mainlining = directly injecting into a vein
-obviously the more effective way

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What does it mean if you see birefingement material on biopsy?

A

Proof that the person was injecting a drug that contained filler material

17
Q

What are track marks?

A

Scar overlying subcutaneous vein

  • indicative of chronic IVDU
  • seen in antecubital fossa
  • scars from mainlining
18
Q

Describe the cause of death from overdosing on

(a) cocaine
(b) heroin

A

How an overdose causes death

(a) Cocaine = stimulant => sudden death from cardiac arrhythmia
(b) Heroin = respiratory depressant => most commonly causes death by loss of respiratory drive, but can on occasion cause sudden death

19
Q

What kind of cardiac finding is pretty indicative of IVDU?

A

Right sided endocarditis

-left sided is much more common overall and from drug use, but if have right sided then def check for IVDU

20
Q

Key pulmonary complication of IVDU

A

Pulmonary hypertension- due to foreign material (ex: insoluble crystals) dislodging in the lungs

21
Q

What is cor pulmonale?

A

Cor pulmonale = right sided heart failure due to pulmonary HTN
-so IVDU can => pulm HTN which => cor pulmonale