Joe Biden's Son Beau Rushed to Hospital

Beau Biden, 44, was rushed to a Texas hospital for tests after falling ill on vacation.
2:53 | 08/20/13

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Transcript for Joe Biden's Son Beau Rushed to Hospital
We want to get to details of a serious medical scare for the family of vice president joe biden. His son, beau, in a texas hospital for testing. And jim avila has the latest. Reporter: A rare press release from the vice president's office overnight, about the health of the vice president's son, beau biden. His symptoms can be considered serious because of family medical history. He's had a stroke 3 1/2 years ago and his father had an aneurysm at age 45. This morning, the vice president's office says the younger biden is undergoing tests at an undisclosed hospital in houston. His famous father by his side. He's the father I've always known, the grandfather my children love and adore. Reporter: The 44-year-old is more than just the vice president's son. The attorney general of his home state of delaware. And an iraq war veteran. He's seen as a rising star in the democratic party. Mentioned as a future governor or to one day fill his father's old senate seat. First things first, make sure I focus on my family and focus on my job. Reporter: But on wednesday, the father of two began suffering weakness. Feeling disoriented while driving to a family vacation in inn. Concerning symptoms, similar to ones three years ago, when he suffered a mild stroke. This time, at the first sign of trouble, biden traveled north to chicago's northwestern medical center. And the next day, on to the same philadelphia hospital where he was treated in 2010. He was later discharged and spent the weekend at his family home. This twitter picture shows him on the porch with the vice president. The white house is not releasing any details of beau biden's condition. Saying only he's undergoing tests in houston. Jim, thanks. Let's get more from dr. Richard besser. You don't think of someone this young being subject to a stroke. Most people aren't. There's 700,000 strokes a year. 5% to 10% are people younger than 45. The causes are different. In old people, it's hardening of the arteries. In young people, the leading cause is don't know. It can be from a heart defect or torn arteries. What are the warning signs to watch for? The letters to remember are f.A.S.T. The f. Is for face. Facial group. The a. Is for people to raise their arms. The "s" is for speech. And the "t" is for time. You have 4 1/2 hours to get to the hospital. You see the symptoms get to the hospital right away. Jim pointed out, joe biden back in 1988, had a serious brain aneurysm. Is this hereditary? It's a good question. If you have a relative who had an aneurysm, your risk of having one doubles. It's still small. But it doubles. That's clearly something they would be looking for in someone whose father had an aneurysm. Let's get to the news.

This transcript has been automatically generated and may not be 100% accurate.

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