Venous access

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Venous Access

Venous access (pronounced: /ˈviː.nəs ˈæk.ses/) refers to the medical procedure of accessing the veins to administer medications, fluids, or to draw blood. The term is derived from the Latin vena meaning "vein" and the Latin accessus meaning "approach".

Types of Venous Access

There are several types of venous access, each with its own specific use and procedure. These include:

  • Peripheral venous access: This is the most common type of venous access. It involves inserting a needle into a peripheral vein, usually in the arm or hand.
  • Central venous access: This involves inserting a catheter into a large central vein, such as the jugular, subclavian, or femoral veins. This is typically used for long-term treatments or when peripheral venous access is not possible.
  • Intraosseous infusion: This is a type of venous access where a needle is inserted into the bone marrow. This is typically used in emergency situations when other forms of venous access are not possible.

Procedure

The procedure for venous access varies depending on the type of access being used. However, all procedures typically involve the use of a needle or catheter, which is inserted into the vein. The area is usually numbed with a local anesthetic before the procedure. Once the needle or catheter is in place, it can be used to administer medications or fluids, or to draw blood.

Risks and Complications

As with any medical procedure, there are potential risks and complications associated with venous access. These can include infection, bleeding, and damage to the vein or surrounding tissues. In rare cases, complications can be serious and may require further medical treatment.

Related Terms

  • Catheter: A thin tube used to deliver medications or fluids into the body, or to draw blood.
  • Vein: A blood vessel that carries blood towards the heart.

External links

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