After fracturing her ankle and getting a cast, South African athlete Marie-Victoire Cumming began feeling extreme discomfort in her leg. What she didn't know was that she had a potentially life-threatening condition called deep vein thrombosis.

A testing system commonly used to diagnose heart problems and other medical conditions has been recalled by the U.S. Food and Drug Administration.

Clot-busting drug tissue plasminogen activator ( tPA ) is the only approved treatment for dissolving blood clots common during stroke, heart attacks or pulmonary embolisms.