CHARLESTON, SC (WCSC) - The American Red Cross is calling on all eligible blood donors now more than ever.
The blood supply has reached emergency levels nationally.
The shortfall leaves the Red Cross with half the readily available blood products on hand over this time last year.
All blood types are needed, but especially O positive, O negative, B negative and A negative in order to meet patient demand this summer.
There are three blood drives on Tuesday in Goose Creek, Moncks Corner and Summerville.
For details about donating call 1-800-733-2767 or visit www.redcrossblood.org