Review Question - QID 210385

A 2-year-old child is brought in for his first pediatric appointment. The child was born at home to a G1P1 mother. The pregnancy was not complicated, and the mother took folic acid supplements and a multivitamin. The mother is requesting a note stating the child is in good health so he can go to daycare. The patient's medical history is not known. He has been developing normally and can walk on his own and responds to his name. His temperature is 98.7°F (37.1°C), blood pressure is 67/48 mmHg, pulse is 140/min, respirations are 26/min, and oxygen saturation is 98% on room air. The patient is shy and does not interact with the physician. Physical exam is notable for the finding in Figure A which is tender to palpation. Which of the following is the most appropriate next step in management?