Johnnie York believes he might not be alive today if it hadn't been for a simple medical test called a heart scan.

York, 64, said it was back in October when his wife, Sherland, saw a television commercial for Norman Regional Hospital's heart scan/cardiac scoring test.

The Lexington man didn't think the exam was a bad idea for him or his wife.

"Sure, why not. It was only $100 for each person," he said.

York said he was adamant his wife schedule the exam soon.

"I wanted her to get it done ASAP," he said. "Heart disease is notorious on her side of the family."

Sherland made the appointments. A few days later, the couple underwent cardiac scoring at Norman Regional Health System's HealthPlex.

"I wanted to get in, get it done and get it over with," York said.

He said the test was over before he knew it. Afterward, he and Sherland sat in a waiting room, ready for their results.

York said the news he was about to hear was a shock. His wife's test revealed she had a low risk for cardiovascular disease.

"It was a relief and a surprise," he said.

But the news wasn't so great for York. He said test results showed a severe blockage in his left main coronary artery.

York couldn't believe it. His health was great as far as he knew. He saw a physician for regular check-ups, and there was no family history of heart disease.

"Yeah, I was tired every now and then," he said.

York said he followed up with his primary care physician and then saw a cardiologist. After a few more medical tests, York received his diagnosis. One coronary artery suffered 90 percent blockage and another 50 percent.