Vacutainer Serum tubes are used to obtain a serum sample. The tubes are available in plastic, a range of sizes and can be identified by a red cap. The BD Vacutainer serum tubes have the additive silica sprayed on the inner walls of the tube to accelerate the clotting process.
An endotracheal tube is designed to isolate the lungs anatomically and physiologically.
is inserted into the trachea for the primary purpose of establishing and maintaining a patent airway and to ensure the adequate exchange of oxygen and carbon dioxide.