What color tube is used for CBC?


Hemolysis can be caused by rough handling of a blood sample, by allowing the tourniquet to run too long (causing blood congestion), or by squeezing the fingertip too much during capillary collection, dilution, exposure to contaminants, extreme temperatures, or pathological conditions. The specified anticoagulant or preservative must be used for the ordered test. The specific steps involved in carrying out a peer review by the interprofessional team, such as laboratory tube collection, must be further investigated. There are numerous coagulation factors (factor VIII, factor IX, etc.) that are involved in blood coagulation.

What is the anticoagulant in the green tube?

Green tubes are often used to request statistical or immediate blood chemistry results in emergencies. Dark green upper tube (sodium heparin) This tube contains sodium heparin, which is used to collect heparinized plasma or whole blood for special tests. Plasma is obtained from blood that has been mixed with an anticoagulant in a collection tube and is therefore not coagulated. There are numerous coagulation factors (factor VIII, factor IX, etc.) that are involved in blood coagulation.

The serum is obtained from coagulated blood that has not been mixed with an anticoagulant (a chemical that prevents blood from clotting).

Which color tube is used for CBC?

All tubes should be marked with the patient’s full name or identification number as shown on the test request form or bar code. The aseptic method for collecting and transporting blood samples uses the principle of a vacuum tube for blood collection. Attempts to push more blood into the tube by applying pressure, such as collecting with a syringe, resulting in red blood cell damage (hemolysis). If only a single collection tube is needed, when the vacuum is exhausted and the tube is completely filled, release the tourniquet and remove the tube from the needle assembly.

With some needle assemblies, you can slide the collection tube into the holder while gently pushing the tubes forward until the needle touches the stopper.


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