Review Question - QID 213856

A 5-year-old boy is brought to the pediatrician by his mother for bedwetting. The patient has been waking up soaked in urine for the past 2 months. His mother states that he was previously toilet trained. She denies daytime accidents. She comments that he seems more hungry and thirsty than usual, but she has been trying to limit his fluid intake close to bedtime. The patient denies dysuria. His father has bipolar disorder. He also has a new, healthy younger brother who is 4 months old. The patient has a history of ear infections. He is on no medications. The patient's temperature is 98.6°F (37.0°C), blood pressure is 100/54 mmHg, pulse is 98/min, and respirations are 19/min. Since his annual check-up 5 months ago, the patient has lost 4 lbs. A urinalysis is obtained and is pending. Which of the following is the best management for the patient’s most likely diagnosis?