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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]
Saline solution normally contains 0.9% sodium chloride. This article walks you through application instructions based on the intended use.
The catheter is held in place by an adhesive dressing, suture, or staple which is covered by an occlusive dressing. Regular flushing with saline or a heparin-containing solution keeps the line open and prevents blood clots. There is no evidence that heparin is better than saline at preventing blood clots. [43]
Saline solution for irrigation. Normal saline (NSS, NS or N/S) is the commonly used phrase for a solution of 0.90% w/v of NaCl, 308 mOsm/L or 9.0 g per liter. Less commonly, this solution is referred to as physiological saline or isotonic saline (because it is approximately isotonic to blood serum, which makes it a physiologically normal solution).
In angiography, 2 to 5 units/mL of unfractionated heparin saline flush is used as a locking solution to prevent the clotting of blood in guidewires, sheaths, and catheters, thus preventing thrombus from dislodging from these devices into the circulatory system . [27] [28] Unfractionated heparin is used in hemodialysis.
The part of the catheter that remains outside the skin is called the connecting hub; it can be connected to a syringe or an intravenous infusion line, or capped with a heplock or saline lock, a needleless connection filled with a small amount of heparin or saline solution to prevent clotting, between uses of the catheter. Ported cannulae have ...
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 one EPR protocol, blood is replaced with a 10 °C saline solution using a catheter. The surgeon has perhaps an hour to repair the wound. A heart-lung bypass machine then restarts the blood flow. Next the patient is partially warmed up to about 34 °C, for 12 hours. [1]
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