A 42 year-old male presents to the emergency room with severe unrelenting colicky abdominal pain, urinary frequency and pain with urination for the last 3 hours. He denies any chest pain, lightheadedness and palpitations. A plain abdominal radiography showed a 4 mm stone in the right ureter.. His medical history is significant for taking methadone 100 mg a day for opioid dependence. He reports taking methadone for over 14 years with ‘no issues’. His ECG is significant for the QTc interval of 470 ms. His other lab values are given below: Sodium 138 mEq/L Potassium 3.7 mEq/L Chloride 98 mEq/L Bicarbonate 24 mEq/L Calcium 8.9 mg/dl Alanine aminotransferase 34 U/L Aspartate aminotransferase 22 U/L Urinalysis….Positive for blood After 3 hours in the emergency room, the patient spontaneously passed the stone and got tremendous relief. What is the next best step in the management of this patient?
