Phlebotomy is the process of drawing blood from a patient’s vein for medical testing or for other purposes. It can be dangerous if done improperly, so it is important to have professionals that are qualified and experienced at doing this procedure properly. Light blue phlebotomy tubes contain the anticoagulant sodium citrate. Blue top tubes with 3.2% sodium citrate are used for coagulation testing and other plasma or whole blood determinations. These tubes are often used for coagulation (clotting) studies. They must be filled completely to ensure the proper ratio of anticoagulant to blood, and they must be inverted immediately after filling to prevent clotting.
Coagulation tests measure blood's ability to clot and how long it takes to clot. It helps determine the risk of developing clots (thrombosis) and excessive bleeding somewhere in the blood vessels. Phlebotomy tubes vary according to the type of work they perform. Different colored stoppers and shields identify different phlebotomy tubes. Certain colors also mark the presence of some other additives. The most common phlebotomy tubes are red, orange, yellow, green, blue, and/or black. Light Blue Tube Phlebotomy are classified as primary tubes for anticoagulants, blood coagulation tests, serum analysis, and other forms of blood tests. During the phlebotomy, a patient will have a small bruise or soreness at the site of the puncture for several days, depending on the blood test they are getting. If it is done for therapeutic purposes, a doctor will check the patient’s health to ensure that they are not allergic to needles or is suffering from any underlying conditions that may increase the risk of a medical complication during the procedure. The phlebotomist will want to select the best anatomical site for a blood draw. This is usually the hand or a small area of skin just below the elbow. Ideally, the veins should be easily accessible and have good elasticity. The procedure of drawing blood can be quite simple or very complicated depending on the needs of the patient. It is a common practice for blood donations and testing but it can also be used as a treatment to remove extra red blood cells from the body. This is especially helpful if someone has a condition like hemochromatosis, where they have an excess amount of iron in their bloodstream that can cause severe damage to the liver or heart if not treated. To avoid complications from a blood draw, the patient should fast for eight to 12 hours before having their blood drawn, allowing the phlebotomist to find the vein and remove excess blood. Light blue tubes, even though Generally Recognized as Safe, are not for all uses. The healthcare professional should always ask the doctor whether the patient needs these particular types of tests. Not all tests require blue; there are several other colors to choose from, including green, yellow, and red. There is also a term, called a speculum, which is used to describe the parts of phlebotomy tubes. A speculum is commonly used in all types of blood coagulation tests but is not used when the coagulating test is performed on a venous blood sample. Thus, there is an increasing demand for light blue phlebotomy tubes across the world.
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