LANSING — The American Red Cross issued an emergency request for platelet and blood donors of all blood types to roll up a sleeve and give because many fewer donations than expected were received in June and the first week of July.

“We are counting on generous volunteer blood and platelet donors to step up and give now,” said Todd Kulman, communications program manager for the Red Cross Great Lakes Blood Services Region. “Every two seconds, someone in the U.S. needs blood. Each day donations come up short, less blood is available for these patients in need.”

Nationwide, donations through the Red Cross were down approximately 10 percent in June, resulting in about 50,000 fewer donations than expected. The shortfall is similar to what the Red Cross experienced in June 2012.

The Red Cross urgently needs donations to ensure an adequate blood supply is available for patients all summer long. Each day, the American Red Cross Great Lakes Blood Region needs approximately 650 donors to step forward and give blood. Eligible donors with types O negative, B negative and A negative blood are especially encouraged to give.

There is also an urgent need for platelet donations. Platelets — a key clotting component of blood often needed by cancer patients — must be transfused within five days of donation, so it’s important to have a steady supply of platelets on hand.

To donate blood, call 1 (800) RED-CROSS (1-800-733-2767) or visit redcrossblood.org to make an appointment or for more information.