Figure 1-10. Performing venipuncture.
(3) Continue inserting the needle until blood is observed in the flash
chamber of the catheter.
(4) Decrease the angle to 15 to 20 degrees and carefully advance the
cannula approximately 0.5 centimeter farther (figure 1-11).
Figure 1-11. Conducting venipuncture.
(5) While holding the needle stationary, advance the catheter into the vein
with a twisting motion. Insert the catheter all the way to the hub.
(6) Place a finger over the vein at the catheter tip and put pressure on the
vein to prevent blood from flowing out the catheter (figure 1-12).
Remove the needle while maintaining firm catheter control.