dr. gholam motamedi, a neurologist at medstar georgetown university hospital is here to walk us through the risks and treatments for blood clots. i guess, doctor to start at the very beginning what is a blood clot. >> blood normally has a tendency to coagulate or clot. if you take the blood out of the system, out of the circulatory system t will clot. if you are let's say laying down in a hospital, typically in a hospitalization, without movement, blood has a tendency to form clots. and sometimes under abnormallal circumstances. there are medical conditions that make you more susceptible to have your blood clot. and from cancers to chemotherapy agents to infections and so forth. but most normal patients there is no specific cause detected. but in this particular case again it is difficult to tell since we don't know many details but typically we see that in patients who are pregnant or just delivered a baby if there is a condition that makes you more susceptible. >> suarez: in the last few hours we found a little more about the secretary of state's condition and the location of the clot, a

dr. gholam motamedi, a neurologist at medstar georgetown university hospital, is here to walk us through known risks and treatments for blood clots. i guess, doctor to start at the very beginning, what is a blood clot. >> blood normally has a tendency to coagulate or clot. if you take the blood out of the system, out of the circulatory system t will clot. if you are, let's say, laying down in a hospital, typically in a hospitalization, without movement, blood has a tendency to form clots. and sometimes under abnormallal circumstances. there are medical conditions that make you more susceptible to have your blood clot. and from cancers to chemotherapy agents to infections and so forth. but most normal patients there is no specific cause detected. but in this particular case, again, it is difficult to tell since we don't know many details, but typically we see that in patients who are pregnant or just delivered a baby, if there is a condition that makes you more susceptible. >> suarez: in the last few hours we found a little more about the secretary of state's condition and the location of