What is a saline lock?

Answer by  patti (29325)

A saline lock or heparin lock is a kind of vein access. It is often used with mothers who are in labor. It allows access to a vein to administer medication in the event of a problem. A saline lock is very common and is not an indication of a serious problem.

Answer by  ladybug615 (24)

A saline lock is the medical term used for intravenous access in a patient. The lock consists of a small plastic piece called a hub that is attached to a catheter that is directly in the patient's vein. The plastic has saline in it, which prevents blood from flowing out.