2.1.4 Routine Testing In the Lab

Test on Tuesday, today.

What is an erythrocyte and what does it do?

AKA RBC, they are in charge of giving the red color to vertebrae blood and do not have nuclei. They also transport oxygen through a body.

What is leukocyte and what does it do?

AKA WBC, Leukocytes lack hemoglobin but have a nucleus. WBCs are active in the immune response.

What are thrombocytes and what does it do?

AKA Platelets, are small colorless bodies of mammalian blood and helps in blood clotting by sticking to other platelets and damaged epithelium.

What is blood plasma?

Pale yellow liquid containing waste, amino acids, hormones, and vitamins. RBC, WBC, and platelets float in plasma.

What vein is most common in blood testing usage?

Median cubital vein, aka antecubital.

What does a phlebotomist do?

Draw blood from patients who are testing or donating blood.

What does a CBC test look at?

WBC, RBC, Hemoglobin, hematocrit, and platelets.

What is hemoglobin?

Oxygen-carrying protein in RBC.

What is hematocrit?

The ratio of RBC in the blood.

What is cholesterol?

A lipid that is a precursor molecule for synthesis of other biologically important steroids. It is a waxy substance produced in the liver.

What are the functions of LDL and HDL cholesterol? Which is bad and what is good?

LDL is responsible for transporting cholesterol to the ells. HDL cholesterol removes excess cholesterol from the blood and transports it to the liver. HDL is good, LDL is bad. Both are lipoproteins.

What is metabolism?

The chemical reaction processes of breaking down energy and of using simple building blocks to build up more complex molecules needed for growth and repair.

What is a hormone?

A signalling molecule produced by glands.

What is glucose?

A simple sugar that the body uses for energy.

What are electrolytes?

Minerals found in blood, urine, and other tissues. Electrolytes move nutrients into cells and moves waste out.

What is BUN and creatinine?

Blood Urea Nitrogen and creatinine are waste products filtered out of the blood by kidneys.

What does a hematologist do?

Study, diagnose, and treat issues in the blood.