The purpose of this study is to determine whether a noninvasive method of measuring certain aspects of blood circulation (e.g., blood pressure, cardiac output) is an accurate and reliable method to detect changes in pregnant patients. Specifically,the investigators are interested in patients diagnosed with high blood pressure during their pregnancy, as compared with normal pregnant patients. A noninvasive, accurate method of taking these measurements in pregnant patients is not currently available.
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Cardiac Index (CI)
Timeframe: 20 minutes