Al-Houssan excelled in his academics while a student at RCSI. He held a variety of management positions. In his final three years, he was a Class Representative. He served on the Emergency Society's committee for two years, as well as the Surgical Society's Surgical Skills Tutor, where he taught students suturing and laparoscopic skills.
Al-Houssan also participated in extensive research while at RCSI, which allowed him to become a co-author and contributor to peer-reviewed, scientific publications. He was involved in cat allergy tests for approximately three years. In Ottawa, Canada, he partnered with Red Maple Trials to verify the city's first naturalistic cat allergy exposure chamber. The findings were published in European Respiratory Journal and Journal of Allergy and Clinical Immunology, respectively.