Surgical & sterile processing · free timed practice test · NBSTSA
Free NBSTSA CST Practice Test
The Certified Surgical Technologist (CST) exam from NBSTSA certifies surgical technologists who scrub, set up sterile fields, and assist in the OR. Many employers and some states recognize CST as the standard surgical tech credential.
Official-source aligned. Topic weights, timing, and pass rules follow published NBSTSA outlines. Questions are original UniPrep2Go study aids — not leaked official items. Verify on the official site ↗
Loading timed practice test…
- Questions
- 60
- Time
- 75 min
- Pass target
- 70%
- Domains
- 4
- Exam body
- NBSTSA
- Status
- Live · free


Surgical & sterile processing · NBSTSA
NBSTSA CST Practice Test
60 Q · 75 min · 70% target
Sample NBSTSA CST practice questions
These sample items mirror the domains in the timed NBSTSA CST mock. Correct answers and explanations unlock inside the practice session.
Sample 1
For the NBSTSA CST, which of the following best completes this item: Sterile technique principle: when in doubt,?
- A. Consider it contaminated
- B. Use it anyway if pressed for time
- C. Ask the patient to decide sterility
- D. Flame it with a lighter in OR
Sample 2
On the NBSTSA CST, which is a correct action if a surgical count is incorrect? Select the best answer.
- A. Close the wound immediately without notifying the team
- B. Notify the surgeon, search systematically, and use imaging as directed by protocol
- C. Hide the discrepancy from the record
- D. Assume the missing sponge dissolved
Sample 3
The purpose of preoperative verification (including site marking when required) is to:
- A. Speed room turnover only
- B. Prevent wrong-person, wrong-site, wrong-procedure surgery
- C. Replace informed consent
- D. Eliminate the need for counts
Sample 4
During thyroid surgery, which nerve is at risk near the inferior thyroid artery territory?
- A. Optic nerve
- B. Recurrent laryngeal nerve
- C. Phrenic nerve in the leg
- D. Sciatic nerve
Sample 5
Passing a sterile basin of saline across a sterile field: if it drips onto the field,
- A. Moisture always improves sterility
- B. Ignore because saline is sterile so the field stays sterile forever
- C. The wet area is contaminated by strike-through risk and must be handled per protocol (cover/replace)
- D. Blot with a nonsterile towel from the circulator directly onto implants
What is the NBSTSA CST exam?
The Certified Surgical Technologist (CST) exam from NBSTSA certifies surgical technologists who scrub, set up sterile fields, and assist in the OR. Many employers and some states recognize CST as the standard surgical tech credential.
Administered by: National Board of Surgical Technology and Surgical Assisting (NBSTSA) (official site ↗)
Who this exam is for
Candidates preparing for NBSTSA CST who want a timed diagnostic with topic-level feedback.
How to prepare
Start with this free timed diagnostic to see which NBSTSA CST domains are weak, then review the published NBSTSA outline on the official site and drill missed topics with the linked Anki deck before exam day.
Confirm current fees, eligibility, and scheduling with NBSTSA before you book the real exam.
Topic outline
Core domains candidates usually study for NBSTSA CST: Perioperative care, Asepsis & sterile technique, Surgical anatomy & procedures, Equipment, counts & safety.
Perioperative care
Asepsis & sterile technique
Surgical anatomy & procedures
Equipment, counts & safety
About this free NBSTSA CST Practice Test
Free 60-question CST surgical technologist readiness check with domain scoring. Use this free timed practice test as a baseline before exam day or before drilling the linked Anki deck.
Built for: Candidates preparing for NBSTSA CST who want a timed diagnostic with topic-level feedback.
Topics on this practice test: Perioperative care, Asepsis & sterile technique, Surgical anatomy & procedures, Equipment, counts & safety.
- 60 timed multiple-choice questions
- 75-minute pacing target
- 70% pass threshold with topic breakdown
- Full answer review after you submit
Free timed mock with full topic report — no signup. After your score, join the linked Anki deck waitlist for the .apkg when it ships.
Join the NBSTSA CST Anki waitlistNBSTSA CST Practice Test — quick answers
What is the CST exam?
CST is NBSTSA’s certification exam for surgical technologists working in the operating room.
Is there a free NBSTSA CST Practice Test?
Yes — UniPrep2Go hosts a free online NBSTSA CST Practice Test with 60 timed questions, 75 minutes, a 70% pass target, topic scoring, and a full answer review report. Free timed practice test.
How many questions are on this free NBSTSA CST Practice Test?
This UniPrep2Go practice test has 60 multiple-choice questions timed against a 75-minute target. Readiness check mapped to NBSTSA CST knowledge themes. Not an NBSTSA exam.
What score do you need on this NBSTSA CST Practice Test?
The pass target on this practice test is 70%. Your report also breaks down performance by topic so you can see weak areas before the real exam.
Who should take this NBSTSA CST Practice Test?
Candidates preparing for NBSTSA CST who want a timed diagnostic with topic-level feedback.
Where can I take a NBSTSA CST Practice Test online?
UniPrep2Go hosts the Free NBSTSA CST Practice Test at https://uniprep2go.study/mock-exams/nbstsa-cst-readiness-check with a timed runner and full readiness report.
More FAQAdditional format, scoring, and disclaimer questions
- Is this official exam material?
- No. This is an independent readiness diagnostic from UniPrep2Go. It is not official exam-board material and does not award certification or guarantee a passing score.
- What does the report show after the mock?
- Your report shows a pass/no-pass verdict with explanation, topic diagnosis, pacing notes, full question review with explanations, and a repair plan that links to the Anki deck waitlist for spaced-repetition practice when the .apkg ships.
- Where do the questions come from?
- Original UniPrep2Go local bank for CST topics.