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Blood Spatter Analysis

Total questions: 71

Worksheet time: 51mins

Name
Class
Date
1.
What blood spatter pattern is seen in the picture?
a)
Transfer/Contact
b)
Swipe
c)
Wipe
d)
Saturation
2.
What blood spatter pattern is seen in the photo?
a)
Wipe
b)
Swipe
c)
Walking Drip
d)
Flow
3.
What bloodstain pattern is created when an object moves through an existing stain, removing or altering its appearance?
a)
Swipe
b)
Walking Drip
c)
Wipe
d)
Contact
4.
What type of blood spatter is typically created from a gunshot?
a)
Medium Velocity
b)
High Velocity
c)
Cast-Off
d)
Void
5.
What blood spatter pattern is seen in the picture?
a)
Cast Off
b)
Medium Velocity
c)
Void
d)
High Velocity
6.
The drop shown above would have more than likely been dropped from an angle of 
a)
90
b)
50
c)
30
d)
10
7.
The following indicates:
a)
cast off
b)
walking drip
c)
splash
d)
medium velocity impact 
8.
The following drops can tell you:
a)
direction 
b)
low impact angle
c)
tails
d)
all of these
9.
What pattern of blood spatter is this?
a)
arterial gushes
b)
splash
c)
smear
d)
pool
10.
The lines in the picture are referred to as lines of ___.
a)
convergence
b)
agreement
c)
tangents
d)
credit
11.
Based upon this picture, what test was done to determine whether or not a stain was blood (the picture shows a positive and negative test). 
a)
Kastle-Meyer presumptive blood test
b)
Leukomalachite green presumptive blood test
c)
Luminol presumptive blood test
12.
What would cause medium velocity blood spatter?
a)
Baseball bat
b)
Human hand
c)
Hand grenade
d)
Gunshot
13.
What is a bloodstain consisting of a darkened peripheral rim where the center of the stain is no longer intact?
a)
Walking Drip
b)
Wipe
c)
Swipe
d)
Skeletonized
14.
Which letter best shows the convergence point (origin point)?
a)
A
b)
B
c)
C
d)
D
15.
Which of the following CANNOT be determined from blood spatter?
a)
Exact Weapon Used
b)
Manner of Death
c)
Velocity
d)
Area of Origin
16.
What bloodstain pattern is created when blood is released or thrown from a blood-bearing object?
a)
Cast-Off
b)
Walking Drip
c)
Medium Velocity
d)
Void
17.
What type of spatter creates the largest blood droplets?
a)
Low velocity impact
b)
Medium velocity impact
c)
High velocity impact
18.
What type of blood-spatter creates the smallest blood drops?
a)
Low velocity impact
b)
Medium velocity impact
c)
High velocity impact
19.
If you have the rH factor then your blood is +.
a)
False
b)
True
20.
A majority of the population is Rh+
a)
True
b)
False
21.
What blood spatter pattern is seen in the picture?
a)
Flow Pattern
b)
Low Velocity Impact Spatter
c)
Pool
d)
Drip Pattern
22.
What type of evidence is blood type?
a)
Individual
b)
Class
c)
Trace
d)
Physical
23.

A protein in the blood that destroys or inactivates a specific antigen is called..

a)

Erythrocytes

b)

Antibody

c)

Antigen

d)

Enzyme

24.
A process where the red blood cells clump together by the action of an antibody.
a)
Agglutination
b)
Enzyme
c)
Phenotype
d)
Genotype
25.

Where are antigens located?

a)

Inside a red blood cell

b)

Surface of red blood cell

c)

In the serum of the blood

d)

In the plasma of the blood

26.

Where are antibodies located?

a)

Inside a red blood cell

b)

Surface of red blood cell

c)

In the serum of the blood

d)

In the plasma of the blood

27.

Type A blood contains:

a)

A antibodies and B antigens.

b)

both A and B antigens.

c)

A antigens and B antibodies.

d)

both A and B antibodies.

28.

To determine whether a bloodstain is of human or animal origin, the serologist will perform:

a)

Kastle-Meyer Color Test.

b)

Benzidine Color Test.

c)

Hemastix Strip Test.

d)

Precipitin Test.

29.

If blood is found to have both A and B antigens on the cell surface it is typed as:

a)

A

b)

B

c)

O

d)

AB

30.

An individual who is type O blood has:

a)

Neither A nor B antibodies

b)

A antibodies

c)

B antibodies

d)

Both A and B antibodies

31.

Which of the following statements is false?

a)

Dried bloodstains may tentatively be identified as blood by a Luminol test.

b)

The Kastle-Meyer test (turns pink) is used to determine whether blood is of human origin.

c)

The bonding of an antigen with its specific antibody causes agglutination.

d)

All blood contains hemoglobin, which is responsible for oxygen transport.

32.

A drop of blood that strikes a surface at an angle of impact approximately 90-degrees will be close to _______ in shape.

a)

circular

b)

teardrop

c)

elliptical

d)

elongated

33.

Which direction was this blood drop traveling?

a)

south to north

b)

east to west

c)

west to east

d)

north to south

34.

The proteins found on the surface of RBCs that allow us to type blood as A, B, O or AB are called

a)

antigens

b)

antibodies

c)

aggluntates

d)

Rh factors

35.

What is the reaction between antigens and antibodies that allow you to determine blood type?

a)

clotting

b)

agglutination

c)

aggregation

d)

antibody production

36.

Tyler has blood type AB+, he can donate blood to a person that has blood type?

a)

AB+

b)

AB-

c)

O-

d)

O+

37.

Which blood type has Type A antibodies?

a)

Type AB

b)

Type O

c)

Type B

d)

Type B and Type O

38.

Laney is the universal donor, what blood type does she have?

a)

O-

b)

O+

c)

AB+

d)

AB-

39.
If a father is AA and a mother is AB, what is the probability for a child with AB blood? 
a)
0%
b)
25%
c)
50%
d)
75%
40.
If two parents have type AB blood, what is the probability that their child will have type O blood?
a)
0%
b)
25%
c)
50%
d)
100%
41.

Which sample is B-

a)
b)
c)
d)
42.

Which sample is O+

a)
b)
c)
d)
43.
If a red blood cell has no antigens on its surface, what is its blood type?
a)
A
b)
B
c)
AB
d)
O
44.
Someone who has Type O blood has what for antibodies (clumping proteins)?
a)
No antibodies
b)
A antibodies
c)
B antibodies
d)
A and B antibodies
45.
What is suspect 2's Blood Type?
a)
A-
b)
B-
c)
A+
d)
B+
46.
What blood type has anti-A antibodies?
a)
Type A
b)
Type B
c)
Type AB
d)
Type O
47.
What blood type has anti-B antibodies?
a)
Type A
b)
Type B
c)
Type AB
d)
Type O
48.
Which test is used to detect invisible blood stains?
a)
Kastle-Meyer
b)
Luminol
c)
Precipitin
d)
Huminal
49.
Blood Typing is considered what type of evidence?
a)
Indiviual
b)
Class
c)
Trace
d)
Physical
50.
Small secondary droplets around the main blood spatter drop are called:
a)
Spikes
b)
Splats
c)
Satellites
d)
Gushes
51.
What determines blood type?
a)
Proteins on red blood cells
b)
Proteins on white blood cells
c)
Proteins in the plasma
d)
Proteins on platelets
52.
Plasma makes up about __ % of blood. 
a)
45
b)
55
53.

Mackenzie has blood type B+, she can receive blood from which blood donors?

a)

B+, B-, O+, O-

b)

B+, A-, O+, O-

c)

B+

d)

O-

54.
At what angle does a "tail" start to form on a blood stain?
a)
75 degrees
b)
30 degrees
c)
60 degrees
d)
90 degrees
55.
What is the acute angle formed between the directon of a blood drop and the surface it strikes called?
a)
Cast - off
b)
Wipe
c)
Medium Velocity Impact
d)
Angle of Impact
56.
What type of spatter creates the largest blood droplets?
a)
Low velocity impact
b)
Medium velocity impact
c)
High velocity impact
57.
Which test uses antibodies that react to human blood to tell if mammal blood is from a human?
a)
Kastle-Meyer 
b)
Luminol
c)
ELISA
d)
Fluorescein
58.
Mike has type O blood. Mike can receive blood from someone who has Type A or Type B.
a)
True
b)
False
59.
What is the study of bodily fluids called?
a)
toxicology
b)
serology
c)
physiology
d)
histology
60.

Another name for a white blood cell is

a)

erythrocyte

b)

leukocyte

c)

thrombocyte

d)

hemacyte

61.

These droplets indicate blood that was dropped at different

a)

heights

b)

directions

c)

angles

d)

speeds

62.

The laboratory study of body fluids using specific antigen and serum antibody reactions

a)

Serology

b)

Plasma

c)

ABO

d)

Precipitin Test

63.

Red Blood Cells

a)

Secretors

b)

Serum

c)

Antigens

d)

Erythrocytes

64.

White Blood Cells

a)

Chemiluminescence

b)

Serology

c)

Leukocytes

d)

Rh Factor

65.

he drop shown above would have more than likely been dropped from an angle of

a)

90

b)

50

c)

30

d)

10

66.

The lines in the picture are referred to as lines of ___.

a)

convergence

b)

intersection

c)

location

d)

tangent

67.

Which letter best shows the origin of the blood?

a)

A

b)

B

c)

C

d)

D

68.

Who were blood types discovered by in 1901?

a)

Ben Landsteiner

b)

Karl Landsteiner

c)

Kastle Meyer

69.

The common ways that forensic scientists can determine if blood is present at a crime scene. Check all that apply.

a)

Kastle-Meyer Test

b)

Hemoglobin Test

c)

Luminol Test

d)

The Karl Landsteiner Test

70.

What is Luminol?

a)

Chemical that shows blue glow in the presence of blood.

b)

Test that uses phenolphthalein that turns bright pink in the presence of blood.

c)

Easy test strips that test for the presence of hemoglobin.

71.
Which test produces light when blood is present?
a)
Kastle-Meyer 
b)
Luminol
c)
Fluorescein
d)
ELISA

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