How to Pass the CRCST Exam on Your First Try

Your complete 2025 guide to mastering the Certified Registered Central Service Technician (CRCST) exam — with proven tips, free quizzes, and study strategies.

1. Understand the CRCST Exam Format

The HSPA CRCST exam has 150 scored questions and 15 unscored pretest items. You'll have 3 hours to complete the test, which covers cleaning, decontamination, sterilization, packaging, and infection control.

Exam Topics

  • Cleaning & Decontamination (20%)
  • Preparation & Packaging (20%)
  • Sterilization (25%)
  • Monitoring & Quality (10%)
  • Infection Control (15%)
  • Regulations & Ethics (10%)

Passing Score

You need a 70% score to pass. That’s 105 correct answers out of 150.

2. Follow a Weekly Study Plan

Consistency beats cramming. Study 4–5 days per week for 6–8 weeks. Focus on one domain per week and use quizzes to track your progress.

3. Use the Right Study Materials

4. Simulate Real Test Conditions

Use a timer and attempt a full-length CRCST practice exam to build confidence. Avoid distractions and mimic test pressure to improve performance.

5. Common Mistakes to Avoid

Pro Tip: Use practice quizzes daily — short bursts of recall strengthen long-term memory more than long cram sessions.
Common Mistake: Many students skip infection control — yet it makes up over 15% of the CRCST exam!

💡 Frequently Asked Questions

Most students study 1–2 hours per day for 6–8 weeks. The more clinical experience you have, the faster you’ll progress.

You can retake it after 6 weeks. Use that time to focus on your lowest scoring sections using free practice quizzes.

It’s challenging but very passable with steady preparation and real exam simulation. Over 70% of students pass on their first attempt with consistent study.

Topic CRCST Exam CBSPD Exam
Organization HSPA CBSPD
Question Count 150 125
Passing Score 70% 70%
Recertification Annual Every 5 years