Blood Types
General Trivia
Types of Spatter
Angle of Impact
100
What are the four blood types of humans?
A, B, AB, and O.
100
What antigens are on the surface of someone who's blood type AB+
A, B and Rh
100
What bloodstain pattern results from blood dripping down due to gravity, forming almost circular shapes?
Passive drip
100
What blood spatter is this?
Blood pool
200
A person of type O is also called a universal ____________.
Donor
200
Which has a higher velocity spatter? Gunshot or Hammer
Gunshot
200
What blood spatter is caused by a high speed impact or force such as a gunshot.
High velocity spatter
200
What angle of impact would you see if blood fell straight down (passive drip)?
90 Degrees
300
A person with this type of blood may receive blood from anyone!
Type AB
300
When you are blood type B and get an A infusion, what do you make to destroy the A blood?
Antibody
300
The transfer of blood from a moving source onto an unstained surface.
Transfer swipe
300
What blood spatter forms when an object flings blood as it is in motion?
Cast off
400
If a person is type O-, what kind of antibodies does that person produce?
A, B and Rh
400
What pattern forms an up and down pattern and results from a cut artery
Arterial gush
400
What spatter pattern is created when a bloody object moves through an existing stain, removing it or changing its appearance.
Transfer wipe
400
The smaller the angle of impact, the rounder the droplets are
False
500
What physically happens to your blood when the wrong blood type is mixed in?
Agglutination/clumping
500
What can we use to test whether there's any hints of blood or any blood that has been wiped away?
Luminol
500
How can you tell that a blood spatter is expiratory?
Bubbles due to air pressure in lungs
500
What is the spiky border around a blood drop called?
Spines