Queralt has a degree in Psychology, diploma in Speech Therapy and postgraduate degree in Speech therapy for Voice disorders (Faculty of Psychology and Educational Sciences Blanquerna, Ramon Llull University), as well as being trained in classical, contemporary and Spanish dance and theater. Apart from her work as a voice therapist, Queralt has taught voice in the faculty of Education and Speech Therapy at the Universitat Autònoma de Barcelona and collaborates as a lecturer in the postgraduate degree course in Therapy for Voice Disorders at the Ramon Llull University. She also gives vocal training courses for teachers as well as lectures and courses nationwide. Queralt has also participated in the preparation of and the presentation of investigative papers at a national level, with an article published in the international Folia Phoniatrica et Logopaedica. Since 2003 Queralt forms part of the team of Dra Casanova and Dr Ferran in their voice clinic in Barcelona, which is recognised nationwide as a centre of reference for the treatment of voice problems.