Not really. Some people just have veins that roll no matter what. Your phlebotomy skills will improve with practice.
tourniquet
Veins become prominent after the application of a tourniquet because of the buildup of blood within them, as the blood is still under pressure, but now in a smaller area, causing the veins to become enlarged.
A tourniquet may be used to aid in venipuncture to make accessing veins easier, or in preventing life-threatening bleeding.
The usual method is direct pressure, which will stop blood flow while clotting begins. Bandages are used to prevent the clots from opening up, and not to "absorb" the blood. For serious injuries, compressing the arteries or veins supplying the tissue can stop the bleeding. One well-known method is the tourniquet, which tightens (sometimes by twisting) to compress the tissues around the blood vessels. Note that this only works if the bleeding is "below" (further down the bloodstream) than the tourniquet.
According to CLSI the tourniquet should not be left on for more than a minute. If a suitable vein has not been found, remove the tourniquet, leave it off for two minutes, then reapply the tourniquet to look for suitable veins and/or perform the venipuncture.
tourniquet
How do you stop an ibm monitor screen from rolling
It means when you come to a stop sign and you keep rolling slowly.
Combat Application Tourniquet (CAT)
Yes, surgical tubing will work as a tourniquet but an ER would be better. Try a direct pressure dressing first.
to allow the blood to continue flowing. the tourniquet backs up the blood and makes the veins more big and firm. After the needle is in ur good to go. but the blood has to flow
The additional underwater surface of the bilge keel creates extra resistance to the side-to-side rolling of the hull, but does not stop rolling altogether.