Staff Sgt. Scott, a 49th Materiel Maintenance Squadron heating, ventilation and air conditioning craftsman, fills out a sign-up sheet to donate blood here May 17. Participants register themselves then answer some questions about their health and travel history during a private interview. Donors make their donation and have a snack before they leave. Donating blood is a simple process that can save lives in an emergency. (Last names are being withheld due to operational requirements. U.S. Air Force photo by Airman 1st Class Randahl J. Jenson)

Sarah, a medical technician from Fort Bliss, Texas prepares Staff Sgt. Scott, a 49th Materiel Maintenance Squadron heating, ventilation and air conditioning craftsman to have his blood drawn here May 17. Medical technicians help ensure the process of drawing blood is efficient and safe for the donor. Donating blood is a simple process that can save lives in an emergency. (Last names are being withheld due to operational requirements. U.S. Air Force photo by Airman 1st Class Randahl J. Jenson)

Sarah, a medical technician from Fort Bliss, Texas draws blood from Staff Sgt. Scott, a 49th Materiel Maintenance Squadron heating, ventilation and air conditioning craftsman here May 17. Medical technicians help ensure the process of drawing blood is efficient and safe for the donor. Donating blood is a simple process that can save lives in an emergency. (Last names are being withheld due to operational requirements. U.S. Air Force photo by Airman 1st Class Randahl J. Jenson)

Staff Sgt. Scott, a 49th Materiel Maintenance Squadron heating, ventilation and air conditioning craftsman, donates blood during a blood drive here May 17. Blood drive participants register themselves then answer some questions about their health and travel history during a private interview. Donors make their donation and have a snack before they leave. Donating blood is a simple process that can save lives in an emergency. (Last names are being withheld due to operational requirements. U.S. Air Force photo by Airman 1st Class Randahl J. Jenson)

Staff Sgt. Scott, a 49th Materiel Maintenance Squadron heating, ventilation and air conditioning craftsman, applies pressure to his arm after having blood drawn by Sarah, a medical technician from Fort Bliss, Texas here May 17. Medical technicians help ensure the process of drawing blood is efficient and safe for the donor. Donating blood is a simple process that can save lives in an emergency. (Last names are being withheld due to operational requirements. U.S. Air Force photo by Airman 1st Class Randahl J. Jenson)

Staff Sgt. Scott, a 49th Materiel Maintenance Squadron heating, ventilation and air conditioning craftsman, eats a snack after having his blood drawn here May 17. Eating and drinking after donating blood replaces fluids, restores iron levels, and helps prevent light-headedness and dizziness. Donating blood is a simple process that can save lives in an emergency. (Last names are being withheld due to operational requirements. U.S. Air Force photo by Airman 1st Class Randahl J. Jenson)