Even though technically the normal range for respirations are considered 12-20 per minute, in some people the rate may be slightly lower or higher than the "normal range". For accuracy, when in question, rates are assessed for a full minute. For instance, people whom are athletic may have a lower respiratory rate, heart rate, and blood pressure than others may experience whom are less active. If your physician upon your evaluations have found no other abnormalities and is not concerned with this being slightly lower than normal then I would not worry much at this point.
Theresa Jones, RN