Surgeon "ate a Pop-Tart and returned to the operating table about 20 minutes later..."

This has to be the best story of the week.

A heart surgeon had to take a break from a mercy-mission operation in El Salvador so he could donate his own rare-type blood for his 8-year-old patient.

Dr. Samuel Weinstein said he had his blood drawn, ate a Pop-Tart and returned to the operating table about 20 minutes later to watch as his blood helped the boy survive the complex surgery.
...
In the May 11 operation, the boy's failing aortic valve was replaced with his pulmonary valve, and the pulmonary valve was replaced with an artificial valve.

"Everything was working great, but he was bleeding a lot and they didn't have a lot of the medicines we would use to stop the bleeding," Weinstein said.

They were running out of blood, Weinstein said. When he asked the boy's blood type, he discovered they were both B-negative. The American Red Cross says 2 percent of the population has the type.