At University of California San Francisco, there are approximately 100 pediatric renal biopsies per year. All of these patients receive sedation, which is prescribed and supervised by the pediatric pain and palliative care team, with either ketamine or fentanyl and versed. Child life is involved; however, many children still experience anxiety and/or pain with the procedure. Use of a modality such as aculaser which may decrease these symptoms could enhance their experience.