Hematology: Venipuncture Flashcards
1
Q
What causes a hematoma?
A
- Needle passing through the vein
- bevel of needle is only partially in the vein
- insufficient pressure on venipuncture site after needle is withdrawn
2
Q
What does a lavender top tube (LTT) have in it and what is it used for?
A
- EDTA
- Hematology
3
Q
What does a red top tube (RTT) have in it and what is it used for?
A
- no anticoagulant
- serum
- sterile tube
4
Q
What does a green top tube (GTT) have in it and what is it used for?
A
- heparin (lithium heparin)
- plasma
- NOT for hematology
5
Q
What does a serum separator tube (SST) have in it and what is it used for?
A
- no anticoagulant
- gel to separate serum
6
Q
What does a blue top tube (BTT) have in it and what is it used for?
A
- sodium citrate (reversible anticoagulant)
- blood clotting
- measuring blood clotting times
7
Q
What does a gray top tube (GTT) have in it and what is it used for?
A
- sodium fluoride (anticoagulant)
- blood glucose measurement
