Low blood pressure accompanied by an increased heart rate might indicate any of 36 different conditions, according to WebMD. Dehydration, panic attack and drug overdose are three of the condition listed that exhibit these symptoms.
How fast the heart beats has nothing to do with low or high blood pressure, according to the American Heart Association. A faster heart rate does not cause blood pressure to raise at the same time. As the heart speeds up and pushes more blood through the body, blood vessels dilate to accommodate the increased flow. A healthy heart rate does not indicate a healthy blood pressure.