Order of Draw
Which tube is drawn immediately after blood cultures?
Light blue
What additive is found in a lavender tube?
EDTA
Which tube is commonly used for a CBC?
Lavender
What is the first-choice vein for routine venipuncture?
Median cubital
Which two fingers are generally preferred for adult capillary puncture?
Middle and ring fingers
Put these in the correct order: lavender, green, light blue
light blue, green, lavender
Sodium citrate
Which tube is used for a PT/INR and PTT?
Light blue
How long should a tourniquet generally remain on at most?
One minute
What should be done if the patient's finger or heel is cool before a dermal puncture?
Warm the site
A patient needs a coagulation test, serum test, and complete blood count, what is the correct order?
coagulation, serum, cbc
What additive is found in a green tube?
Heparin
Which tube is commonly used for glucose testing when glycolysis needs to be inhibited?
Gray
Hematoma
How many patient identifiers should be used for collecting a specimen?
Two
Why is order of draw important?
To prevent additive carryover between tubes
What does a gold or tiger top SST contain?
Which tube is commonly used for blood bank testing such as type and screen?
Pink
A patient becomes pale and says they feel faint. What should the phlebotomist do first?
Stop the draw and protect the patient from injury
What is the process of spinning a specimen to separate its components called?
Centrifugation
Give the full order of draw
blood cultures, light blue, red, gold/tiger, green, lavender, white, pink, gray
What additives are commonly found in a gray tube?
Sodium fluoride and potassium oxalate
Which tube is often used for plasma chemistry testing, containing lithium heparin and separator gel?
Mint green/PST
A patient reports sharp, shooting pain down the arm during needle insertion. What complication should be suspected?
Nerve involvement/injury
What does aliquoting mean?
Dividing a specimen into separate containers