A Quick Draw Tubes Quiz!

The tube that has EDTA is the lavender tube.

The green tube has heparin. Heparin is an anticoagulant that prevents blood from clotting. Green tubes are commonly used for collecting blood samples for certain tests that require plasma or whole blood with anticoagulants. The heparin in the green tube prevents the blood from clotting, allowing for accurate testing.

The light blue tube contains sodium citrate. Sodium citrate is commonly used as an anticoagulant in blood collection tubes. It prevents blood from clotting by binding to calcium ions, which are necessary for the clotting process. The use of sodium citrate in light blue tubes allows for the collection of whole blood for coagulation tests, such as prothrombin time (PT) and activated partial thromboplastin time (aPTT). The royal blue tube, on the other hand, is typically used for trace element testing and does not contain sodium citrate.

The correct answer is PINK because tubes with EDTA are commonly used for collecting and preserving blood samples for hematological tests. The pink-colored tube contains EDTA as an anticoagulant, which helps to prevent blood from clotting. This allows for accurate testing of various blood components such as red blood cells, white blood cells, and platelets. The green-colored tube, on the other hand, typically contains heparin or sodium citrate as an anticoagulant, not EDTA.

The correct answer is serum because serum is a clear, yellowish fluid that remains after blood has clotted and the clot has been removed. Unlike plasma, which contains clotting factors, serum does not contain any clotting factors and is therefore unable to clot.