Everything you need to pass the CRCST on your first attempt. Real exam format, all 5 HSPA domains, spaced repetition, and 1,200+ practice questions.
Exam Overview
The Certified Registered Central Service Technician (CRCST) exam is administered by HSPA (Healthcare Sterile Processing Association) and is the most widely recognized sterile processing certification in the United States. Over 40,000 technicians hold this credential, and it's required or preferred by most healthcare employers.
The exam consists of 150 multiple-choice questions covering real-world decontamination, sterilization, and distribution scenarios. You have 3 hours to complete it, and you need a scaled score of 70% to pass. The exam is computer-based and can be taken year-round at Pearson VUE testing centers nationwide.
Unlike the CSPDT, the CRCST has no experience prerequisite — you can sit for the exam immediately after completing an accredited sterile processing program or with equivalent work experience verified through HSPA.
HSPA Curriculum
HSPA divides the CRCST exam across 5 domains. Each domain has a specific weight on the exam. Focus your study time proportionally.
Cleaning, disinfection, PPE, bioburden removal, ultrasonic cleaners, washer-decontaminators
Instrument inspection, set assembly, packaging materials, container systems, labeling
Steam, EO gas, hydrogen peroxide plasma, Bowie-Dick, biological indicators, load release
Case cart systems, sterile storage, transport, inventory management, recall procedures
Regulatory standards (AAMI, TJC, CMS), quality assurance, safety protocols, documentation
Free Practice
Try these real-world questions drawn from HSPA's published exam content outlines. Each includes a full explanation.
Instruments with dried bioburden require immediate manual cleaning at the decontamination workstation — never skip straight to automated cleaning. AEM principles allow point-of-use pre-cleaning, but when that step fails, you must manually clean with an approved neutral-pH detergent before running the automated cycle. This two-step approach ensures thorough soil removal and protects instruments from damage. Returning the set to OR (B) delays reprocessing unnecessarily, and proceeding without manual cleaning (A) results in inadequate decontamination.
Rigid containers are reused and do not have sterile expiration dates on them — only the external wrap applied during each sterilization cycle carries an expiration date. The other three checks (A, B, D) are all mandatory pre-use inspections per AAMI ST79 and the container manufacturer's Instructions for Use (IFU). Filters, gaskets, and locking mechanisms degrade over time and must be inspected each use. Weight limits exist to prevent container deformation and ensure sterilant penetration.
A failed Bowie-Dick test indicates an air leak, inadequate air removal, or superheat in the sterilizer chamber — any of which compromises sterilization. Per AAMI ST79, a failed Bowie-Dick requires removing the sterilizer from service and performing diagnostic testing to identify the root cause before returning it to use. Repeating the test (B) without fixing the underlying issue wastes time. Using the load (C) is dangerous — a failed Bowie-Dick means sterilization efficacy cannot be confirmed. Temperature adjustment (D) without diagnosis ignores the root cause and risks continued use of a malfunctioning sterilizer.
TJC requires annual review of sterile processing policies and procedures (P&P), with the frequency increasing when standards, equipment, or processes change. CMS CoP also mandates written P&P that are reviewed and updated annually. Waiting 36 months (C) creates compliance gaps. The 6-month cycle (D) isn't a TJC requirement — it's an internal quality metric some departments track, not a regulatory standard. SterileProtocol tracks your certification timeline and will flag when state mandates or employer requirements require a credential review.
A damaged door gasket on a sterilizer means air could have leaked into the chamber during cycles — potentially compromising the sterilization of every load run during that shift. This triggers an immediate recall of all sets processed on that sterilizer since the gasket was last confirmed intact. AIs (A) are expected to incubate — you don't hold sets pending results unless a positive BI is returned. Inventory discrepancy (B) is a tracking issue, not a safety recall. A small dent (D) on a container wall (not the filter area or lid) may not affect sterility — inspect per IFU.
SterileProtocol gives you 1,200+ CRCST practice questions with detailed explanations, SM-2 spaced repetition, and full HSPA domain coverage. Free to start.
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