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WorksheetsBlood Labs Review
Total questions: 39
Worksheet time: 39mins
What types of antigens are present in a person with O blood?
A
What antigens are present in a person with type B blood?
A and B
Someone with type A blood has which antibodies?
This is the colorless liquid in which the components of blood are suspended...
red blood cells
platelets
plasma
white blood cells
Red blood cells will do this if they encounter the wrong antibodies...
swell
agglutinate (clump)
dehydrate
no reaction will occur
Someone with Type A blood also has...
Type A antibodies
Type B antibodies
both Type A & B antibodies
neither Type A nor B antibodies
Someone with both Type A & B antibodies is which blood type?
A
B
AB
O
Someone with Type A blood has...
A antigens
A antibodies
B antigens
A & B antigens
Proteins produced by the immune system that destroy foreign substances...
antigens
agglutinates
platelets
antibodies
Someone with Type AB blood has...
Both A & B antibodies
No antibodies
only A antigens
only B antigens
Name the proteins on the surface of red blood cells.
Antibodies
Antigens
Plasma
Collagen
What type of antigens can be found on the surface of RBC's when someone has blood type O?
A
B
AB
none
During a blood typing test, a droplet of blood is found to have both A and B antigens. What is the blood type?
A
B
AB
O
What type of blood is shown here?
A
O
B
AB
The serum will __________ if the protein is present in the blood.
Clump
Not Clump
Which sample identifies type B blood?
Which sample identifies type O blood?
The Kastle-Meyer test is a _____________ blood test because it gives basic information in a short amount of time.
presumptive
definitive
confirmatory
positive
This type of presumptive test that determines if the stain is blood or not.
Luminol
LCV
Leucocrystal Violet
Kastle-Meyer
As a forensic scientist, what is the first question to ask when you see a red stain?
Is the blood human?
Is the stain blood?
What is the blood type?
Is there DNA in the blood?
The proteins found on the surface of RBCs that allow us to type blood as A, B, O or AB are called
antigens
antibodies
aggluntates
Rh factors
Relies on other unique properties of blood, such as the proteins present on the surface of red blood cells called antigens and confirms the presence of blood at a scene
Confirmatory Test
Presumptive Test
What is the purpose of presumptive testing?
Find out who the blood belongs to.
Find out the blood type of the blood sample.
Find out if a substance may be or is not blood.
Make the cotton swabs turn pretty colors.
The arrow is pointing to a
satellite
spine
parent drop
The arrow is pointing to a
satellite
spine
parent drop
bloodstain drops created of formed solely under the control of gravity
Passive Bloodstains
Flow Patterns
Trail Patterns
bloodstain pattern produced when an object makes contact with the surface and is
removed without any movement of the object
Swipe Patterns
Transfer Patterns
Pool Patterns
bloodstain pattern which is caused by little force
Low Velocity Impact Spatter
Medium Velocity Impact Spatter
High Velocity Impact Spatter
In the Kastle Meyer test the pink color change (which indicates positive) does not occur until after the ____ is added to the cotton swab.
water
hydrogen peroxide
ethanol
phenolphthalein
