Tijaabada PSA-du waa tijaabo dhiiga oo muujineysa haddii ay wax qanjidhka shahwada ragga iska bedeleen. Waxa jira isbeddello noocan oo kale ah oo aan khatar aheyn iyo kuwa keeni kara kansarka ku dhaca qanjirka shahwada ragga sameeya. Iyadoo la isticmaalaayo tijaabada PSA ayaa dhakhtarku uu ogaan karaa haddii aad u baahato in laguu sameyso baadhitaano dheeraad ah ama daaweyn.