Blood collection

Which of these needles is the largest?

• 18G

• 20G

• 23G

• 25G

What is an anti-coagulant?

• An agent that causes any liquid to clot

• An agent that causes clotting of blood only

• An agent that prevents blood from clotting

• An agent that prevents any liquid from clotting

What is hemolysis?

• The destruction of of all cells in the body

• The destruction of red blood cells

• the movement of red blood cells between tissues in the body

• The movement of red blood cells within a blood sample

Which anticoagulant do these blood tubes contain?

• Ethylenediaminetetraacetic acid

• Sodium citrate

• Sodium fluoride

• Lithium heparin

What anti-coagulant does this vacutainer contain?

• Ethylenediaminetetraacetic acid

• Sodium citrate

• Ammonia oxalate

• Potassium oxalate

Tags

NGSS.HS-PS1-2

You have collected a blood sample into a plain serum tube.

How long should you wait before placing the sample into the centrifuge?

• 5 minutes

• 10 minutes

• 15 minutes

• You can place the sample into the centrifuge straight away

What anticoagulant does this tube contain?

• Lithium heparin

• Sodium citrate

• Serum gel

• Potassium oxalate

A sodium citrate tube would be used to test which of the following?

• Hormone levels

• Electrolytes

• Glucose levels

• Blood clotting disorder

You are required to test the blood glucose levels of your patient. Which blood tube/anticoagulant should you put your sample into?

• Lithium heparin

• Ethylenediaminetetraacetic acid

• Ammonia oxalate/potassium oxalate

• Serum gel

You have taken a blood sample and packaged it, ready for collection later that day. How should you store the sample until it is collected?

• It should be placed in the freezer

• It should be placed in the fridge

• It should be placed in a cupboard in the laboratory

• It should be placed next to the patient it was taken from