The # 1 trusted source for SPD & CST certification prep materials & advice.

Practice tests for certifications from HSPA, CBSPD, and NBSTSA

Surgical Technician Exams

The Sterile Guy YouTube Channel

The Sterile Guy YouTube Channel

Want to learn more? Checkout The Sterile Guy YouTube channel for excellent content, chances to win prizes, and some humor along the way. Subscribe to make sure you never miss an upload.

Visit YouTube Channel

Browse the Practice Exams