s heart rate you have to know what the heart rate
ranges are, the average heart rate
, and if she has appropriate heart
rate variability. That can be accomplished by having your daughter wear a holter monitor for 24 hours. That can look for irregular heart beats as well. If a child has an abnormally elevated heart rate, but otherwise seems fine, as your daughter seems to be, then other things have to be looked for: thyroid abnormalities, anemia and catecholamine secreting tumors.