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A painful flush may indicate tissuing or phlebitis and is an indication that the cannula should be relocated. [1] Solutions other than normal saline may be used. Heparinised saline may be used in flushing arterial lines, to prevent clotting and blockage of the line. [citation needed]
A Foley catheter can also be used to ripen the cervix during induction of labor. When used for this purpose, the procedure is called extra-amniotic saline infusion. [9] In this procedure, the balloon is inserted behind the cervical wall and inflated, for example with 30-80 mL of saline. [9]
In some situations, venous access is obtained by inserting catheters into the large central veins of the trunk of the body such as the internal jugular, subclavian, or femoral veins. This type of venous access is performed with central venous catheters (CVCs) , and is required in certain situations where peripheral access is inadequate.
A central venous catheter (CVC), also known as a central line (c-line), central venous line, or central venous access catheter, is a catheter placed into a large vein. It is a form of venous access. Placement of larger catheters in more centrally located veins is often needed in critically ill patients, or in those requiring prolonged ...
Sheaths use a valve to permit insertion and removal of catheters to minimize air entry into sheath and minimize blood loss from the sheath. For large sheaths, there may be a minimize catheter size to allow the valve to work appropriately. Sheaths may have a "side arm" port that allows fluid access to the lumen of the sheath.
This gives it an advantage over indwelling lines such as the Hickman line. Negative pressure is created to withdraw blood into the vacuumized needle, to check for blood return and see if the port is functioning normally. Next, the port is flushed with a saline solution. Then, treatment will begin.
I have written this warning because our country—the democ-racy our young patriots expect to inherit—is in the process of being altered forever.
A Hickman line two-lumen catheter inserted on the patient's left side. Scars at the base of the neck indicate the venotomy site and insertion point into the left jugular vein . A Hickman line is a central venous catheter most often used for the administration of chemotherapy or other medications, as well as for the withdrawal of blood for analysis.