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You are seeing a 13 year old girl with heavy prolonged menses x 10 days who appears pale to her parents. She had menarche at age 11, and has had heavy irregular menses since then. She actually feels that her menses is slowing down and she is currently using 1-2 pads per day. She has never had any other bleeding. Her HR is 90, and BP 100/50. Her hemoglobin is 9 and her MCV is 65.