e. Apply the constricting band above the site and palpate for a fairly straight vein
which lies on a hard surface. Vein should feel springy to palpation. Avoid sites near
f. Cleanse the selected site and instruct the patient to clench and unclench his
fist several times to improve venous distention.
g. Remove protective cover from catheter/needle unit without contaminating the
h. Apply gentle pressure on the vein about one inch below the injection site and
pull the skin taut.
i. Position the needle at a 20- to 30-degree angle and in the direction of the
j. Insert needle and decrease the angle until almost parallel to skin surface.
Aspirate for blood backflow or note blood in the flash chamber. If the first attempt is
unsuccessful, pull the needle back slightly (but not above the flesh surface) and direct
the needle point into the vein again. If this second attempt is unsuccessful, release the
constricting band and withdraw the needle.
k. Remove the constricting band. Press the skin lightly over the catheter to
constrict the vein and prevent excessive blood loss into the catheter. This procedure
should be attempted again in another place.
l. Using your dominant hand, remove the protective cover from the needle
adaptor and connect it quickly and tightly to the catheter hub.
m. Remove your other hand from the hub, release the clamp and adjust the flow.
Check for infiltration.
n. Clean the area around the venipuncture and place ointment/dressing IAW
local SOP. Tape the looped tubing securely to the patient's arm.
3-25. DISCONTINUE AN INTRAVENOUS INFUSION
a. Introduction. An infusion must be stopped if there are complications beyond
the capabilities of the medical NCO. The infusion will be discontinued at the physician's
b. Procedure to Discontinue.
(1) Explain to the patient why the infusion is being discontinued and tell him
what you are doing while you are working.