People wait in line to donate blood at the United Blood Services in Las Vegas on October 2nd following the deadly mass shooting at the Route 91 festival.
"I said well, instead of going to the gym I'm going to go donate blood", said Ralph Brewer.
"O-negative blood type then needs to be collected by all the regional centers in a greater quantity to be ready for the next disaster so we can share resources", Corley said. And show up they did.
How can you help after the tragedy in Las Vegas.
According to the American Red Cross, the average trauma patient could need up to 100 pints of blood during their initial treatment.
AuBuchon said donating this week will help Bloodworks contribute when supplies in Las Vegas become low. She said she pulled over in Santa Maria and chose to give blood for the first time.
Phoenix residents can also give blood to the American Red Cross.
And at Santa Maria's United Blood Service's Donation Center, phlebotomists say they saw more first-time blood donors on Monday than ever before.
"Many people who donate blood do it in honor or memory of a loved one, to pay if forward", Lambert said.
If you recently got a tattoo, you can also donate blood as the old ban has changed.
Rep. Ruben Kihuen, a Democrat whose district includes part of Las Vegas, visited a hospital where some victims were taken.
But wait-times in Las Vegas blood centers are up to two hours, and that blood has to be processed before it can be used.
Join 1140 in helping the victims of the devastating Las Vegas attacks.
Blood has a shelf life of 42 days.