Download the official NBSTSA CST app and study anywhere, anytime.


The NBSTSA Certified Surgical Technologist (CST) examination tests candidates on the knowledge and skills of entry-level Surgical Technologists and Surgical First Assistants in various settings. NBSTSA created the examination to assess the skills that make up the body of knowledge for all surgical technologists and surgical first assistants. The NBSTSA CST examination consists of 200 questions, 175 of which are scored. The 25 pretest items (unscored) are randomly distributed throughout the examination for the purpose of analysis and statistical evaluation.

I. Peri-Operative Care
A. Pre-Operative Preparation
B. Intra-Operative Procedures
C. Post-Operative Procedures

II. Additional Duties
A. Administrative and Personnel
B. Equipment Sterilization and Maintenance

III. Basic Science
A. Anatomy and Physiology
B. Microbiology
C. Surgical Pharmacology


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Our answer rationales are written to effectively teach you the material. We even explain why the distractors are incorrect choices so you can fully master the concepts.

If a Kelly clamp is left in a patient who underwent a cholecystectomy, which of the following legal concepts apply?
  • res ipsa loquitur
  • intentional tort
  • misdemeanor
  • extension doctrine
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NBSTSA CST Cumulative Stats Recent Test Scores
82% 31% 53% 34% 91%
Average Score 64%
Exams Taken 12
September 28, 2017 at 2:57 PM 91%
September 27, 2017 at 10:17 PM 34%
September 27, 2017 at 4:29 PM 84%

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“Love this app!!! Without a doubt, the best study app for board exam preparation. Gives me confidence and helps develop a thorough process for the real thing. Study on the go for the dedicated student!” Teare Reichert, Google Play Review
“This app is very helpful. I've been a tech for a few years and passed 140 out of 200 questions just from Pocket Prep. I recommend this for techs that are seasoned but never got certified.” Marleyboi24, iTunes Review
“I love how it explains the answers whether you are right or wrong and it gives you the source of their answers.” banabear12, Google Play Review
“A necessity! I've used it on the go and it's a tremendous help.” Alexie Marrero, Google Play Review

*Disclaimer: Pocket Prep, Inc. is the official exam prep provider for the NBSTSA.