A Kansas couple says they have donated blood products in all 50 states.
James and Linda Parker started their blood-donation quest four years ago in their home state. They say they completed it by donating blood platelets at Tripler Army Medical Center in Honolulu.
Full blood donations can be made only every eight weeks, but platelets can be donated more often. Platelet donations can be made much more frequently because blood is filtered and then returned into the donor's bloodstream.
The Parkers say they want to raise awareness of the shortage of blood donors nationwide.
The couple traveled close to 120,000 miles and spent more than $33,000 on their effort.