Even when blood cells are removed from the body, their metabolism doesn't stop. Glucose is broken down during this process. Anticoagulants included in gray-stoppered tubes function as glycolytic inhibitors, lowering the quantity of glucose broken down after drawing, leading to a more precise STAT glucose test.
Sodium citrate, an anticoagulant, is contained in a tube with a light-blue stopper.
As an anticoagulant, potassium oxalate or sodium fluoride and thymol are combined in a gray stopper tube.
Errors in preanalysis may arise from a specimen before laboratory examination.
When drawing blood from challenging veins, the tubing of a winged infusion (butterfly) blood collection needle provides more flexibility. Butterfly needles with smaller gauges (23 or 25) are usually used on patients who are elderly, small-veined, or fragile.
Heparin therapy is monitored by the activated coagulation time (ACT) test.
Prior to venipuncture, the area should be cleaned with alcohol using a circular target motion. Start at the desired venipuncture site and work your way outward in concentric circles. This approach forces the bacteria away from the interior of the venipuncture site to the outside.
A multidraw needle is a double-ended needle that has a sheath to keep blood from leaking out when changing tubes, allowing you to draw blood from multiple tubes at once.
To evaluate a patient's overall clotting problems, the prothrombin time (PT) test can be utilized in conjunction with the partial thromboplastin time (PTT).
There is no additive in a red-topped glass tube.
The glucose tolerance test (GTT), which is frequently used to screen for type 2 diabetes, gauges the body's reaction to sugar (glucose).
