Dr. Petersson is a member of the American Academy of Otolaryngology - Head and Neck Surgery (member of AAO-HNS Cleft Surgeon Alliance), American Broncho-Esophageal Association (Council member, Social Media Committee Chair), Pediatric Head and Neck Surgical Society (President and founding member), American Society of Pediatric Otolaryngology, Virginia Society of Otolaryngology (board member-at-large) and American Cleft Palate-Craniofacial Association.
She was a member of the women's national rowing team 1997-2000, and the 2000 Olympic rowing team.