Yellow top tube is used for collecting blood for blood culture (SPS) tests. It is sterile.
FBS stands for Fasting Blood Sugar level and is drawn to Flox ( grey top) tube. It can also be collected into SST tube.
If a grey stopper tube is collected before a lavender shield tube, silicon accrues.
clotting
Red (Serum) Tube or a Gold (SST) Tube
blue
Blood for CBC is usually collected in a purple-top tube (containing EDTA).
Yellow top tube is used for collecting blood for blood culture (SPS) tests. It is sterile.
To obtain serum for a blood test you need to use a tube without any anticoagulant. You use a needle and the tube to draw blood from a persons veins.
complete blood count ammonia esr (sed rates) hemoglobin a1c
FBS stands for Fasting Blood Sugar level and is drawn to Flox ( grey top) tube. It can also be collected into SST tube.
ABG is collected in a green heparinized tube or heparinized syringe.
Clotting
If a grey stopper tube is collected before a lavender shield tube, silicon accrues.
clotting
No special preparation is required other than cleaning and disinfecting the skin at the puncture site. Blood is collected in a tube by venipuncture.
A lance, or small needle, makes a small cut in the surface of the fingertip, and a small amount of blood is collected in a narrow glass tube. The fingertip may be squeezed to get additional blood to surface.