Blood Assurance’s supply of O-positive blood is critically low.

Thursday afternoon, they had only 110 units, a half-day supply. That’s 600 units short of where they need to be.

O-positive is the most common blood type, accounting for nearly 40 % of the U.S. population, and is always in high demand from area hospitals.

As a result of the low supply, Blood Assurance officials may have to urge area hospitals to postpone elective surgeries until the supply stabilizes. 

Donors can schedule an appointment at www.bloodassurance.org/schedule or visit any donation center or mobile blood drive.

All donors who give through the end of the month will enter into a giveaway promotion for a MacBook. Blood Assurance is giving away three of the laptops.