CRCST Study Guide

Everything you need to prepare for the CRCST exam — the right materials, a realistic study plan, and free practice questions for every chapter.

The Official Study Material

Training Manual for Central Service Technicians, 9th Edition

Published by HSPA (formerly IAHCSMM), this is the only source material the CRCST exam is written from. Every exam question traces directly back to content in this manual. There is no substitute.

The manual covers 23 chapters spanning medical terminology, microbiology, decontamination, sterilization, instrumentation, and quality management. The exam draws from all chapters, with heavier weight on decontamination, sterilization, and infection prevention.

How to Structure Your Study Plan

Take the diagnostic first

A 25-question diagnostic test shows you where you stand across all chapters, so you can focus your time on the weakest areas.

Read one chapter at a time

Read the chapter in the official manual, then immediately practice with exam-style questions on that chapter. This read-then-test cycle locks information into long-term memory.

Track your readiness

Aim for 80%+ accuracy on recent questions per chapter before scheduling your exam. Our dashboard shows your readiness status per chapter.

Re-test your weak chapters

A week before your exam, retake the diagnostic. Focus your final push on any chapter still below 70%.

What the Exam Emphasizes

The CRCST exam is 150 multiple-choice questions in 3 hours. Based on the published exam content outline, here are the heaviest topic areas:

Decontamination & CleaningCh. 7, 8

~20%

Sterilization (High & Low Temp)Ch. 15, 16

~18%

Assembly, Packaging & StorageCh. 12, 13, 17

~16%

Infection Prevention & MicrobiologyCh. 4, 6

~14%

InstrumentationCh. 10, 11

~12%

Monitoring & QualityCh. 18, 19

~10%

Other (Inventory, IT, Safety)Ch. 20, 21, 22, 23