Problem:
A 16-year-old female presents at the clinic with extreme fatigue and shortness of breath while playing volleyball. She has been in good health until about six months ago. During these six months, she has had several colds and flu events where she was unable to do normal activities. Her mother reports she spends a great deal of time sleeping, sometimes twelve hours, and complains of fatigue when she awakens. She is pale and appears to have little energy. The doctor suspects iron deficiency anemia (IDA).
What will the doctor likely do first for this young woman?