Phosphate in Blood
How It Is Done
The health professional taking a sample of your blood
- Wrap an elastic band around your upper arm to
stop the flow of blood. This makes the veins below the band larger so it is
easier to put a needle into the vein.
- Clean the needle site with
- Put the needle into the vein. More than one needle stick
may be needed.
- Attach a tube to the needle to fill it with
- Remove the band from your arm when enough blood is
- Put a gauze pad or cotton ball over the needle site as
the needle is removed.
- Put pressure on the site and then put on a
In a newborn baby, the blood sample is usually taken from the
heel (heel stick).
For a heel stick blood sample, several drops of blood are
collected from the heel of your baby. The skin of the heel is first cleaned
with alcohol and then punctured with a small sterile lancet. Several drops of
blood are collected in a small tube. When enough blood has been collected, a
gauze pad or cotton ball is placed over the puncture site. Pressure is
maintained on the puncture site briefly, and then a small bandage is usually
How It Feels
You may feel nothing at all from the needle puncture, or you may
feel a brief sting or pinch as the needle goes through the skin. Some people
feel a stinging pain while the needle is in the vein. But many people do
not feel any pain (or have only minor discomfort) once the needle is positioned
in the vein. The amount of pain you feel depends on the skill of the health
professional drawing your blood, the condition of your veins, and your
sensitivity to pain.
A brief pain, like a sting or a pinch, is usually felt when the
lancet punctures the skin. Your baby may feel a little discomfort with the skin