The average life of a red blood cell is about 120 days.

It is important for body growth and the production of red blood cells.

However, some people must continue to use at least a small amount of the medicine to keep their red blood cells from getting too low.

The red blood cells break down at a faster rate.

Healthy red blood cells last between 90 and 120 days.

A person normally has only one type of red blood cell.

We'll learn more about red blood cells in detail next.

Why, then, was she now unable to make any red blood cells at all?

There is no risk of receiving the wrong red cells.

More red blood cells will be destroyed because of it.