Karen Shackelford MD is the hypertension expert on about.com.

If you'd like to learn about hypertension, a fairly common disorder in American adults, check out the articles posted by Karen Shackelford MD. There are several interesting articles on the site. Today, Dr. Shackelford published an interesting article about hypertensive emergencies - click on the link to learn how to determine when a rise in your blood pressure should lead you to the emergency department! Cheers!