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High Pulse with Low BP

Last night I was at work (I work in a factory with about 10 hours a day), and I suddenly got really dizzy and felt like I was going to pass out. After sitting in the ER for an hour and a half, my pulse was 150. I m a 23 year old female. Anyways, they gave me blood tests and an EKG. It all checked out ok. I went to the doc this morning, and my blood pressure was low, and my pulse was high again. For some reason, my pulse is jumping over 50 beats everytime I stand up for a few seconds. I m not dehydrated, and I don t have a clue what is going on. My doctors are baffled, and are sending me to a Cardiologist to get a halter monitor. They can t put me on beta blockers cause my doc said I would pass out for sure. Does anyone have any idea what it could be? I don t smoke, drink, do drugs, and am on no meds. It s still going on, and hopefully the doctor appointment tomorrow will find something out.
Thu, 17 Dec 2009
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Well, that is obviously difficult to say from here. I mean, you have been to the ED and your doctor's office, had ekg, probably blood tests, ect, and they still have not seen anything. Typically your presentation says, dehydration! But, apparently this isn't the case as you stated. Another culprit could be atrial fibrilation with rapid ventricular response, but they should have been able to see this on the ekg, unless it is somewhat sporatic and it just didn't show at that moment. Hopefully the halter test will find any abnormality in your heart function. Now, with all that said obviously something is wrong, right? Your blood pressure is too low which is causing your heart rate to increase to try to compensate. So why is it too low? As previously mentioned, typically you would see dehydration or something like atrial fib, but apparently you don't suffer from those. Other things to consider would be heart defects such as with the valves, causing the heart to not pump effectively, thus reducing the amount of blood pumped at any given time, which would reduce the pressure. You could also consider abnormal kidney function. Your kidneys may be forcing your to remove excess amounts of fluid, but then that would typically be seen as dehyration. Bacterial infection could lead to abnomal dilation of blood vessels as would nerve damage from things like diabetes. Lastly, reduced cardiac function can be caused by a pulmonary embolus. My guess is that this is related to the heart rhythm in one way or another however. I hope this has been helpful and good luck.
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