A 16-year-old African American patient presents with a chief complaint of bloody urine. The patient was in his usual state of health until the evening prior to admission when after Kung Fu practice, he noted that his urine was red. This had never occurred before. There was no back or groin pain and no dysuria. The patient denied any trauma in spite of his Kung Fu practice. He also had a recent upper respiratory infection, which was managed conservatively with no over-the-counter medications.
His admission labs demonstrated the following:
WBC: 3.6
Hgb: 10.6
Plt: 17,000