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Venous cutdown is an emergency procedure in which the vein is exposed surgically and then a cannula is inserted into the vein under direct vision. It is used for venous access in cases of trauma, and hypovolemic shock when the use of a peripheral venous catheter is either difficult or impossible.
The tourniquet distends the veins, making them more palpable and visible. There are many ways in which blood can be drawn from a vein, and the method used depends on the person's age, the equipment available, and the type of tests required. Most blood collection in the US, UK, Canada and Hong Kong is done with an evacuated tube system.
The procedure itself is known as a venipuncture, which is also used for intravenous therapy. A person who performs a phlebotomy is called a phlebotomist, although most doctors, nurses, and other technicians can also carry out a phlebotomy. [2] In contrast, phlebectomy is the removal of a vein.
This name for handheld venipuncture devices first appears in Anglo-Saxon manuscripts around 1000. [1] The name is most likely derived from phlebotome: phlebos, Greek for blood vessel and tome, meaning to cut. [2] These instruments are the progression from the early use of fish teeth, sharpened stones, and thorns used to penetrate blood vessels.
Corrections of arrows of external iliac vein. 19:44, 21 June 2020: 550 × 830 (1.08 MB) Jmarchn: Correct epigastric vein anatomy: 11:43, 21 June 2020: 550 × 830 (1.03 MB) Jmarchn: Corrections to celiac trunk, iliac vessels (adding posterior branchs to internal iliac vessels)and thoracic arteries. Add left branch of the portal vein, added ...
Oxygen-poor blood enters the right side of the heart through two large veins. Oxygen-rich blood from the lungs enters through the pulmonary veins on the left side of the heart into the aorta and then reaches the rest of the body. The capillaries are responsible for allowing the blood to receive oxygen through tiny air sacs in the lungs.
When the needle enters the vein, venous blood pressure generally forces a small amount of blood into the set's transparent tubing providing a visual sign, called the "flash" or "flashback", that lets the practitioner know that the needle is actually inside of a vein. The butterfly offers advantages over a simple straight needle. The butterfly's ...
A peripherally inserted central catheter, or PICC line (pronounced "pick"), is a central venous catheter inserted into a vein in the arm (via the basilic or cephalic veins) rather than a vein in the neck or chest. The basilic vein is usually a better target for cannulation than the cephalic vein because it is larger and runs a straighter course ...