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Sterile Processing Practice Test: Free CRCST Exam Questions (Certified Registered Central Service Technician)

500 practice questions for the CRCST (Certified Registered Central Service Technician) exam, built on the CRCST content outline. They follow its 7 sections, weighted the way the real exam is: Cleaning, Decontamination and Disinfection, Preparation and Packaging, and Sterilization Process (21% each), Departmental Considerations (15%), Sterile Storage, Transport and Inventory Management (9%), Professional Development and Human Relation Skills (8%) and Patient Care Equipment and Distribution (5%), and they cover all 143 topics under them. Most are moments on the floor: which way the air flows in decon, what a failed Bowie-Dick sheet looks like, where the BI goes in the load, why a wet pack is contaminated, what to do when an HLD test strip fails, and when an implant can leave the department. Each is tagged to its outline topic, so your score report shows exactly where you miss, and every answer explains why the best choice is best and names its public source.

The real test: 150 multiple-choice questions (125 scored, 25 unscored pretest) in 3 hours at a Prometric test center. It is pass/fail and HSPA publishes no passing number, so there is no fixed percent; you can retest after 6 weeks. Certification also takes 400 hours of hands-on work in a sterile processing department, before the exam or within 6 months after it. The exam follows HSPA's content outline from its 2023 job analysis: 7 sections, with Cleaning, Decontamination and Disinfection, Preparation and Packaging, and Sterilization Process at 21% each. Our practice test is full length, 125 scored questions plus 25 unscored, split by the outline's weights, passing at 70% (88 of 125).

Here: 500 questions. Our own practice questions, built on HSPA's CRCST exam content outline and written from public sources (the CDC Guideline for Disinfection and Sterilization in Healthcare Facilities, FDA reprocessing guidance and labeling rules, OSHA 1910.1030, 1910.1200, 1910.1047 and 1910.1048, EPA, and the AAMI standards and AORN guidelines as publicly summarized), with every answer's source named. Topics are the 7 sections of the content outline. Not HSPA's test questions. Free.

What's on the test

"On the test" is the rough share of a 125-question test for each topic, following the exam's published weights.

10 sample questions

1. Compared with the hallway and the clean side of the department, which way should air pressure run in the decontamination room?

   • A.Positive, so dust from the hallway is pushed back out
   • B.Positive in winter and negative in the summer months
   • C.Neutral, matched to the hall
   • D.Negative, so air flows into decon and not out of it
   Show answer

   D. Negative, so air flows into decon and not out of it

   SPD-1 · 1. Departmental Considerations

2. Under OSHA, by when must an employer offer hepatitis B vaccine to a new decon tech?

   • A.Only once the tech has worked there a full year
   • B.Never, since the tech must arrange and pay for it
   • C.After the tech's first needlestick injury
   • D.Within 10 working days of starting the job
   Show answer

   D. Within 10 working days of starting the job

   SPD-76 · 2. Cleaning, Decontamination and Disinfection

3. Trays come out of the washer onto the clean side still hot. How should you handle them?

   • A.Spray them with cold water so they can be handled right away
   • B.Grab them quickly with bare hands so they don't sit and collect dust
   • C.Let them cool or use heat-resistant gloves
   • D.Wrap them while hot
   Show answer

   C. Let them cool or use heat-resistant gloves

   SPD-181 · 3. Preparation and Packaging

4. What protects you best when unloading a steam sterilizer cart right after a cycle?

   • A.Exam gloves, doubled up for thickness
   • B.Wet towels wrapped around your hands
   • C.Heat-resistant gloves, with care
   • D.Bare hands, moving very quickly
   Show answer

   C. Heat-resistant gloves, with care

   SPD-286 · 4. Sterilization Process

5. How far should sterile items be kept from the floor?

   • A.Any height on a cart
   • B.1 to 2 inches
   • C.At least 36 inches
   • D.8 to 10 inches
   Show answer

   D. 8 to 10 inches

   SPD-391 · 5. Sterile Storage, Transport and Inventory Management

6. An IV pump returns from an isolation room. What PPE is worn to clean it?

   • A.Sterile gloves and a sterile gown
   • B.Only a mask, since it's electronic
   • C.None, since pumps never touch patients directly
   • D.Gloves, plus more if splashing is likely
   Show answer

   D. Gloves, plus more if splashing is likely

   SPD-436 · 6. Patient Care Equipment and Distribution

7. You answer the department phone. What's the most professional greeting?

   • A.Your department and name
   • B.Only your first name
   • C.'Hold, please,' right away
   • D.Just 'Yeah?'
   Show answer

   A. Your department and name

   SPD-461 · 7. Professional Development and Human Relation Skills

8. The preparation and packaging room and sterile storage should be kept at what air pressure compared with the areas around them?

   • A.Positive
   • B.Neutral, matched to the corridor
   • C.Whatever the decontamination room is set to
   • D.Negative
   Show answer

   A. Positive

   SPD-2 · 1. Departmental Considerations

9. What does 'standard precautions' mean in decontamination?

   • A.Cleaning isolation items first
   • B.Wearing PPE only for items from patients known to be infected
   • C.Using extra-strength detergent on items from infected patients
   • D.Treating every soiled item as infectious
   Show answer

   D. Treating every soiled item as infectious

   SPD-77 · 2. Cleaning, Decontamination and Disinfection

10. While assembling a set you find a sharp hook with its tip exposed. How is it protected?

    • A.Bend the tip down
    • B.With a cotton ball pushed onto the tip and held with tape
    • C.By leaving it loose on top so the OR team sees it first
    • D.With a validated tip protector
    Show answer

    D. With a validated tip protector

    SPD-182 · 3. Preparation and Packaging

What the study guide does

• Short study rounds and flip cards.
• A practice test built like the real one: 125 questions, 88 to pass.
• Pass Meter: your chance of passing if you sat the test today, worked out from your own answers.
• An explanation for every answer.