Phlebotomy Week 2

What can happen if the order of draw is not practiced correctly?

• Inaccurate results

• Misdiagnosis of patient

• Cross contamination

• Transfer of additives

Which tube is used for PT/INR and PTT tests?

• Red top tube

• SST tube

• Coagulation tube

• EDTA tube

What does Sodium Citrate do in the clotting cascade?

• Separates whole blood cells

• Prevents clot formation

• Helps grow bacteria

• Binds with Calcium

What common tests can be run in a Serum Separator Tube?

• PSA

• TSH

• CBC with Differential

• Lipid Panel

What is the purpose of the gel in a SST tube?

• Preserve sample on ice

• Prevent clotting

• Bind Calcium to prevent clotting

• Separate blood cells from serum

Which tube is used for lead testing?

• Tan EDTA

• Purple top tube

• Green top tube

• SST tube

What is the main additive in the Gray tube?

• Potassium Oxalate

• Sodium Fluoride

• Sodium Polyantholesulfonate

• Sodium Citrate

What happens if EDTA purple tube ends up in a SST tube?

• Maintains sterility of sample

• Skews potassium results

• Prevents clotting

• Provides serum for testing

What is the purpose of collecting a blood culture?

• To identify pathogens

• To grow bacteria

• To treat infection

• To prevent bacterial growth

The Green Top Tube has all the clotting factors

• True

• False