Phlebotomy Flashcards
What is the liquid part of the blood called?
Serum
Serum: if a blood cell is allowed to clot (fibrinogen is all used up) the result is serum and blood cells are?
Meshed in a fibrin clot.
The thin white layer above the RBCs?
Buffy coat, made from the WBCs and platelets.
Examples of anticoagulants:
EDTA, Citrates, Heparin, Oxalates.
Common test for Heparin?
Electrolytes, cholesterol, glucose.
Common test for Sodium Citrate?
PT (Prothrombin time), PTT, D - dimer, fibrinogen, factor studies.
Sodium Flouride is the antiglycolytic agent, what is potassium oxalate?
It is the anticoagulant, which binds the sodium with calcium, interupting the coagulation proccess.
Lactate and glucose testing can be used with:
A gray top tube if glucose sample cannot be delivered to a lab within 2 hours.
What are sclersosed veins?
They are veins that have hardened due to numerous amounts of punctures.
Type of instrument used to find difficult veins?
Venoscope.
Ways a tube vaccum fails to collect blood?
Inserted the needle too far, too short, vaccum defect, tourniquet too tight.
What is a thrombosed vein?
When the vein is clotted.
What is edema?
When there is unusual fluid in the tissues. Contaminates blood with tissue fluid.
What is hematoma?
It is when there is a swelling of blood, caused by blood leakimg from the vein due to poor venipuncture.
What is a mastecomy?
Surgery in the breast. Which causes difficult venipuntures due to swelling, lymph flow and other restrictions
