Phlebotomy chap 6

One difference between arteries and veins is

• blood in veins is blue

• veins have valves

• vein walls are thicker

• veins ALWAYS carry oxygenated blood

The first choice in vein selection for phlebotomy is

• median cubital

• cephalic

• basilic

• radial artery

Which of these tubes will be drawn first?

• SST

• Green

• Light blue

• Blood cultures

Which blood cell is biconcave and anuclear (having no nucleus)?

• White blood cells

• Red blood cells

• Platelets

• Leukocytes

What is the normal white blood cell count?

• 5,000 to 10,000

• 4-5 million

• 150-300

• there is no average

Plasma comes from

• clotted blood

• a SST tube

• a tube with out an anticoagulant

• blood that has not clotted

Serum comes from

• blood that has clotted

• any tube with an anticoagulant

• a blue top tube

• all tubes will give you serum

Which white blood cell make up most of our white cells?

• segmented neutrophil

• eosinophil

• basophil

• monocyte

How many white blood cells are granulocytes?

• 2

• 3

• 4

• 5

If I centrifuge a SST tube, the fluid at the top of the tube will be

• plasma

• serum

• formed elements

• buffy coat