A needle is inserted into the vein, and the blood is collected in an air-tight vial or a syringe. During the procedure, the tourniquet is removed to restore circulation. Once the blood has been collected, the needle is removed, and the puncture site is covered to stop any bleeding . Cotton or a bandage may be applied to the puncture site if there is any continued bleeding. How The Test Will Feel When the skin is pricked with the needle, the amount of discomfort varies.
Some people experience moderate pain while others feel only a prick or stinging sensation.
Afterward, the site may be bruised for a few days. The physical and psychological preparation you can provide for this or any test or procedure depends on your child's age, interests, previous experience, and level of trust. Although the disease can easily be treated by removing milk from the diet, early recognition is essential. Some states, in fact, require that all newborns be screened for this disorder. Veins and arteries vary in size from one patient to another and from one side of the body to the other.