What Causes Elevated Pulse Rate In A 56 Year Old Woman?
I would recommend as follows...
Detailed Answer:
Hello,
I passed carefully through your question and would explain that her symptoms could be related to low blood pressure or orthostatic intolerance.
Dehydration or antihypertensive drugs can lead to this clinical scenario.
An infection could also mimic this clinical situation.
Does she have a fever?
Have you measured her blood pressure values?
I recommend having some rest and taking plenty of water.
If this situation persists, I would recommend going to the ER for a physical exam and some tests (a resting ECG, complete blood count, blood electrolytes, PCR).
Hope you will find this answer helpful!
Take care.
Dr. Ilir Sharka, Cardiologist