Red blood cells have the important job of picking up oxygen
from the lungs and carrying oxygen to all of the other cells of
the body.
The cells of the body use oxygen as the fuel they need to do their
jobs.
Red blood cells also give you color. If your skin is white the
red blood cells give you the pink color in your skin. They also
give your lips a nice pink color. I'd like for you to meet.

The way we measure the Red Blood Cells is by measuring the Hemoglobin.
Hemoglobin is the protein that makes up the Red Blood Cells.
When the Hemoglobin level is below 8 grams, the cells of the
body do not receive enough oxygen to do their jobs and your body
may begin to feel differently.
Your heart must also pump harder.
Young children cannot tell us these things. They may be more
irritable and tired than usual. HEMOGLOBIN less than 8 grams When
the Hemoglobin level drops below 8 grams, your doctor will
decide if you should receive a blood transfusion to make you feel
better, and to lessen the strain on the heart.