This pressure decreases or stops the flow of blood from the vein after
the needle is removed.
(17) With your dominant hand, remove the flash chamber with the attached
needle from the catheter and lay the flash chamber/needle aside.
Be sure to properly dispose of the needle later.
(18) Tell the casualty to unclench his fist.
Notice that the catheter in the vein is pointing in the direction of the blood
flow, not against it. When IV fluids are administered, the fluids will join the
natural flow of blood back to the heart, not fight against the flow.
g. Release Constricting Band. Without switching hands, release the
constricting band from around the casualty's limb. Continue to apply pressure to the
vein with the other hand.
h. Apply Saline Lock.
(1) Quickly uncap and insert the male end of the saline lock adapter plug
into the hub of the catheter.
(2) Release pressure from over the vein. The saline lock will prevent the
loss of blood from the catheter.
i. Apply Tegaderm Dressing. Apply a Tegaderm dressing to the site. The
dressing should cover 100 percent of the site, to include insertion site and saline lock
adapter plug. The dressing will protect the saline lock and also protect against outside
The Tegaderm dressing is transparent (clear) and rectangular in shape with
a visible, removable border around the edges. Apply the dressing with the
border side up. After the dressing has been firmly applied, remove and
discard the border.
When an IV is needed, the needle of the IV can penetrate the Tegaderm
dressing. If the IV is terminated, the IV needle can be removed and the
Tegaderm dressing left in place. If another IV is needed, the IV needle
can be inserted through the Tegaderm dressing again.