Chapter 1: Liquid Portion (Plasma or Serum)

Question 1

What is the upper layer, a yellowish liquid, makes up 55% of volume of blood called?

Answer 1

Plasma.

Question 2

Plasma is the fluid that provides a matrix for?

Answer 2

Blood cells, electrocytes, proteins and chemical that travel throughout the body via the blood vessels.

Question 3

A type of plasma protein is called Fibrinogen and functions in?

Answer 3

Blood Clotting.

Question 4

Fibrinogen molecules interact to form large, insoluble strands of fibrin which is?

Answer 4

The basic framework for a blood clot.

Question 5

If steps are not taken to prevent clotting is a blood sample, Fibrinogen is converted to?

Answer 5

Fibrin.

Question 6

The fluid left after clotting is known as?

Answer 6

Serum.

Question 7

Serum is used for?

Answer 7

Many tests done in the laboratory.

Question 8

What is the main difference between serum and plasma?

Answer 8

Plasma contains fibrinogen and serum does not.

Question 9

Laboratory tests are performed on?

Answer 9

Plasma, serum or whole blood.

Question 10

To produce a plasma specimen, the blood must be prevented from?

Answer 10

Clotting by the use of a chemical anticoagulant that prevents clotting of the blood.

Question 11

Blood collected in a tube containing an anticoagulant can be centrifuged to?

Answer 11

Separate the formed elements (cells) from the plasma.