BUTTERFLY
A small needle with two plastic wings attached which are squeezed together to form a tab that is used to manipulate the needle.
A long 6-12" plastic tubing is attached which again offers better manipulation.
This assembly is then attached to a syringe or Vacutainer holder for the purpose of drawing a blood sample.
CENTRIFUGE
A laboratory apparatus that separates mixed samples into homogenous component layers by spinning them at high speed.
CIRCULATION
The movement of fluid in a regular or circuitous course. Although the noun "circulation" does not necessarily refer to the circulation of the blood,
for all practical purposes today it does.
Heart failure is an example of a problem with the circulation.
CITRATE
A compound that is an intermediate in the citric acid cycle (Krebs cycle).
Citrate chelated (binds) calcium ions, preventing blood clotting and, thus, is an effective anticoagulant.
CITRATE PHOSPHATE DDEXTROSE (CPD)
An anticogulant.
CLOT
A semisolid mass of found inside or outside the body.