Prephow became one of the resources I used while preparing for the CST exam. I focused on surgical procedures, instruments, sterile technique, and operating-room practices, with extra attention to instrument identification and surgical case sequences.
CST Practice Test
Your Proven Shortcut to Certified Surgical Technologist Success
Get exam-style questions, detailed explanations, and realistic timing to master the latest NBSTSA. Prepare CST practice test then walk into your Medical Technology exam with confidence.
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How Our Practice Exam Works?
Study wherever, whenever with these quiz practice questions for CST:
Pick a Mode
You can choose Study Mode for course preparation and Exam Mode (timed 90-minute) for simulation.
Realistic Mix
CST exam questions reflect both multiple-choice and scenario/performance-style prompts aligned to exam objectives.
Detailed Explanations
Every question includes a clear explanation, so you know why an answer is correct.
Domain Analytics
See strengths/weaknesses by the domains & sub-topics to focus your revision.
Reattempts
Retake Certified Surgical Technologist practice exam to improve your speed and accuracy; watch your score trend toward the benchmark.
Exam Simulator
Get a feel for the real exam with our NBSTSA practice test.
Why Choose PrepHOW for CST Practice Questions
Train the way you'll be tested. With the most clinically accurate, expertly written question bank, you’ll build the speed, accuracy, and confidence needed to pass the Certified Surgical Technologist on your first attempt.
- 1. Practice & Exam modes to switch between learning and testing
- 2. Detailed answer explanations for every question
- 3. Instant scoring & feedback to show what you missed and why
- 4. Smart dashboard to track strengths, weaknesses, and progress
- 5. Study anywhere with mobile-friendly design
- 6. Updated CST questions bank to match the latest exam changes
- 7. Free practice test to start - no credit card required
Real Exam Feel
Mock Exam/Study modes, question flagging, and instant or end-of-exam feedback.
Smarter Analytics, Faster Improvement
Trend charts so you can see when you're consistently above the passing scrore.
Quality You Can Trust
Clear, teach-back explanations with why the correct answer is right and why others aren't.
Frequently Asked Questions
What is the CST exam, and why is certification important?
The CST exam, or Certified Surgical Technologist exam, is a national certification examination designed to assess the knowledge and skills required for entry-level practice as a surgical technologist. Certification validates that an individual has completed the necessary training and possesses the core body of knowledge crucial for patient safety and professional competence in the operating room.
Who administers the CST exam?
The CST exam is administered by the National Board of Surgical Technology and Surgical Assisting (NBSTSA). This organization is solely responsible for developing the content outline, maintaining eligibility standards, and issuing the CST credential.
How many questions are on the CST exam?
The CST exam contains 175 total multiple-choice questions. This breaks down into 150 scored questions that determine your result and 25 unscored "pretest" questions that are used by the NBSTSA for statistical analysis and future exam development.
What are the main content areas of the CST exam?
The 150 scored questions are distributed across three main domains of surgical practice:
- Perioperative Care (highest weight)
- Ancillary Duties
- Basic Science
The full content outline is provided by the NBSTSA.
Which domain has the most questions on the CST exam?
Perioperative Care carries the highest weight, accounting for approximately 97 questions (or over 60%) of the scored examination. This domain covers all aspects of care, including Pre-operative Preparation, Intraoperative Procedures, and Post-operative Procedures.
What specific sciences does the CST exam cover?
The Basic Science domain, which includes about 30 questions, tests foundational knowledge in Anatomy and Physiology, Microbiology (especially surgical infection control), and Surgical Pharmacology (e.g., drug classifications and dosage calculations).
What topics are in the Ancillary Duties section of the CST exam?
The Ancillary Duties domain covers essential, non-procedural knowledge. Topics include Administrative and Personnel responsibilities (e.g., ethics, communication, documentation) and Equipment Sterilization and Maintenance (e.g., troubleshooting equipment, decontamination, and sterile processing).
What are the eligibility requirements for the CST exam?
Candidates must be a graduate of a surgical technology program that is accredited by the Commission on Accreditation of Allied Health Education Programs (CAAHEP) or the Accrediting Bureau of Health Education Schools (ABHES), or have completed an equivalent military surgical technology program.
How do I register and schedule the CST exam?
You must first create an account and apply on the NBSTSA website and pay the fee. Once your eligibility is confirmed (allow 2-4 weeks), the NBSTSA sends an Authorization to Test (ATT) letter, allowing you to schedule your appointment with the testing vendor (PSI) at a secure testing center.
How should I prepare for the CST exam?
Preparation should be comprehensive. Use the official NBSTSA Examination Content Outline as your blueprint, focus on the high-weight Perioperative Care domain, utilize recommended reference textbooks, and take Prephow CST practice tests to simulate the 4-hour test environment.
How long should I study for the CST exam?
Most successful candidates find that a structured study plan lasting 3 to 6 months is necessary to effectively review all content areas, practice questions, and allow time to focus on weaker subjects identified through practice tests.
How often must I renew the CST certification?
The CST certification must be renewed every two years (24 months) to remain current. This two-year cycle was implemented to align with industry standards and maintain competency.
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Discover how our CST practice tests have empowered countless students to pass their exams with ease.
Bobby Sanders
Madison Rodgers
Prephow’s CST prep was a lifesaver. The questions on perioperative care and anatomy were spot-on. I felt fully prepared walking into the test and confident through every section.
Mathias Peters
After struggling with surgical procedures and pharmacology topics, I turned to Prephow’s CST practice questions. They broke everything down so clearly. I finally passed my exam with ease!