Blood

Question 1

What blood cells contain nuclear?

Answer 1

White blood cells

Question 2

What is blood ?

Answer 2

Blood is a fluid mixture consisting of cellular components and plasma that circulate through the body

Question 3

What are the 4 major functions of blood?

Answer 3

Transport oxygen to heart, brain, muscles and other vital organs and body tissue
Fluid balance and temp regulation
Transport of toxic waste out of the body
Supply of food to body tissue

Question 4

What are the stages of blood examination?

Answer 4

Detect- ABC
Record
Collect

Question 5

What is the acronym ABC in relation to blood?

Answer 5

Appearance
Behaviour
Context

Question 6

What is a Roche Combur Test?

Answer 6

A presumptive test that will give an indication that a stain may be blood.

Question 7

What is a false positive?

Answer 7

A positive reaction to a substance other that the substance of interest

Question 8

What is a false negative ?

Answer 8

A negative reaction to the substance of interest. Can result in failure to detect evidence.

Question 9

What are things that can alter the appearance and behaviour of blood?

Answer 9

Mixing with other bodily fluids, water or other substances
Interacting with the environment (oxidising to brown)
Surface interactions (separating, flaking, hardening)