Yellow top tube- If frozen serum is required, place the plastic transport tubes (prepared above) immediately in the freezer compartment of the refrigerator. The specified anticoagulant or preservative must be used for the ordered test. The blood smear (commonly known as a blood smear) can be an important part of clinical testing. Do not replace the yellow top pipe (SPS).
The chemical was chosen to preserve some characteristics of the sample and to work with the method used to perform the test. Never leave a tourniquet on your arm for more than a minute without letting go of it.
What is a yellow top blood test for?
The therapist’s anticoagulant activates antithrombins, which block the coagulation cascade and produce a plasma sample or whole blood. In modern medicine, most hospitals and GP practices are equipped with computer software that automatically prints blood tags upon request. Tubes with pink stoppers are used in blood banks, for example, for various methods, such as cross-matching, screening of antibodies or blood group determination. Blood bottles are usually vacutainer tubes that contain a rubber stopper that creates a vacuum seal inside.
To carry out an anticoagulant blood test, another type of tube that does not contain a clot activator is required.
Which blood tube colors are there for which test?
If a Coag tube (light blue) is the only or first tube to be drawn, a 5 ml disposal tube must be drawn first.
What are the three types of blood tubes?
During centrifugation, a gel barrier is formed between the plasma and the cellular components of the blood. Plasma is obtained from blood that has been mixed with an anticoagulant in a collection tube and is, therefore, not coagulated. A tiny rubber cover automatically closes when the vacuum tube is removed from its holder, preventing leakage and blood loss when changing tubes. This step embeds the full tip of the needle into the stopper without piercing it, preventing blood from leaking during the venipuncture and premature loss of vacuum.
Numerous errors can occur when collecting and handling blood samples, which pose significant and avoidable risks for the patient and the phlebotomist.