SAN ANTONIO -

Gina Walker knows about the importance of blood donations through first-hand experience.

On Feb. 14, 2012, she nearly died while giving birth to her daughter, Addison.

She had placenta accreta, a rare condition in which the placenta attaches itself and grows through the uterus.

After the delivery, she began hemorrhaging and lost the equivalent of 35 gallons of blood, needing 540 units of blood over the course of two days. 

Fortunately, University Hospital had plenty of donated blood on hand.

"It was thanks to those donors who had already donated blood that the blood that was on the shelf and ready for Gina when she needed it," said Dr. Geralyn Meny, a Univeristy Hospital pathologist.

Walker said she is now making it her mission to spread awareness about the importance of blood donation.

She and her husband started the Hope For Accreta Foundation to help women who who have accreta, the same rare condition that caused her to hemorrhage.

She's launched a national campaign and blood drive.

"Think of whose life depends on it because you never know. At any chance, you can be in a car wreck -- anything can happen," said Walker.

The Hope For Accreta Foundation's first blood drive is taking place this week.

For information about location to donate, go to http://www.hopeforaccreta.org

Locally, blood drives will be taking on the following days/locations:

· Wednesday - University Hospital, 4502 Medical Drive, in the Blood Donor Room, 3rd floor. Drive ends at 5 p.m.

· Thursday - Robert B. Green Campus, 903 W. Martin, in Conference Room - Rm. C3 516, 3rd Floor. Drive ends at 4 p.m.

· Friday - University Hospital, 4502 Medical Drive, in the Blood Donor Room, 3rd Floor. Drive ends at 5 p.m.

For a list of recent stories Eileen Gonzales has done, click here.