Desert Blood Services will conduct two community blood drives Wednesday, August 28. The first drive will be at Hi-Desert Medical Center in Joshua Tree from 10 to 2. The second blood drive will be at Vons in Yucca Valley from 2 to 5 p.m. Donors will receive incentives. In addition, Desert Blood Services now offers donors free cholesterol screening with every blood donation. All prospective donors should be free of infections or illness, weigh at least 110 pounds, and not be at risk for AIDS or hepatitis. To make an appointment to donate blood, call 877-827-4376.