Desert Blood Services will conduct a community blood drive Wednesday, December 18, in the Helen Gray Education Center at the Hi-Desert Medical Center, in Joshua Tree from 10 to 2. Blood 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.