IAHCSMM Cheat Sheet 2026

The 30 highest-yield IAHCSMM facts, distilled from real exam questions. Print it, save it as a PDF, or study it here — free, no sign-up.

1. ANSI/AAMI ST79 is best described as: → A comprehensive guide for steam sterilization in healthcare facilities
2. Which of the following is an example of a resource developed by IAHCSMM? → Sterilization and disinfection manuals
3. What is a key component of the certification exams offered by IAHCSMM? → Written tests covering sterile processing principles and practices
4. What action should a technician take if an endoscope's cleaning brush becomes visibly soiled during channel brushing? → Replace the brush with a new or reprocessed brush immediately
5. A flexible endoscope has been stored for 5 days in a ventilated cabinet. What action should be taken before patient use? → The scope must be reprocessed again before patient use
6. Tungsten carbide inserts in surgical instruments are identified by which feature? → Gold-colored handles or rings
7. Clostridium difficile (C. diff) spores in a patient care environment are BEST eliminated by: → EPA-registered sporicidal agents (e.g., bleach-based)
8. A sterile tray is found with a wet package. What does moisture on the exterior most likely indicate? → The sterile barrier may be compromised
9. When a CS department introduces a new high-temperature sterilizer, which training step should occur FIRST? → Review the manufacturer instructions for use (IFU) and operation manual with all staff
10. An OR liaison discovers a set of laparoscopic instruments with residual bioburden in the jaw housing. This MOST likely indicates a failure in: → Mechanical cleaning of lumens and hinged areas
11. Which of the following viruses is classified as non-enveloped and is therefore MORE resistant to disinfection? → Norovirus
12. What is the maximum allowable relative humidity in a sterile storage area according to AAMI standards? → 50%
13. The purpose of a Bowie-Dick test in steam sterilization is to: → Detect air leaks and inadequate air removal in pre-vacuum steam sterilizers
14. Powered surgical instruments such as oscillating saws require lubrication as part of their reprocessing because: → Moving parts and gears require lubrication to function properly and prevent corrosion
15. Which material is INCOMPATIBLE with steam sterilization and must be processed using an alternative method? → Oil-based lubricants and petroleum products
16. How often does IAHCSMM typically update its guidelines and standards? → When new research or technology necessitates changes
17. Which approach is most effective for problem-solving in Instrument Processing? → Systematic analysis followed by evidence-based decision making
18. What is a common method IAHCSMM uses to help healthcare facilities implement its standards? → Providing detailed procedural guidelines and training materials
19. A CS technician notices a sterile package has a torn outer wrap. What is the correct action? → Remove from service and reprocess
20. When using peracetic acid as a high-level disinfectant in an AER, what is a key safety consideration for staff? → Adequate ventilation is critical as peracetic acid releases irritating fumes
21. What is the primary purpose of the standards established by IAHCSMM? → To provide a framework for maintaining high quality and consistency in sterile processing
22. Which of the following is an example of an endogenous source of infection? → Patient's own normal flora
23. When assembling a micro-surgical instrument tray, why should individual instruments be separated by foam inserts rather than stacked together? → To allow sterilant penetration and prevent damage to delicate tips
24. Which surgical instrument is BEST suited for grasping delicate tissue such as the peritoneum during laparoscopic surgery? → Atraumatic grasper
25. Which detergent property is MOST important when selecting a cleaning solution for flexible endoscope manual cleaning? → Low-foaming formulation compatible with scope materials per manufacturer IFU
26. Which type of microorganism is most resistant to standard sterilization methods and requires the highest level of killing? → Bacterial spores
27. When disassembling multi-part laparoscopic instruments for reprocessing, why must all components be separated? → To allow cleaning solution to reach all surfaces and internal channels
28. What is the most important foundational concept in Instrument Processing? → Understanding core principles and their practical application in Instrument Processing
29. Attending an IAHCSMM Annual Conference benefits CS professionals primarily by: → Providing CE hours, exposure to new technology, and national peer networking
30. How does IAHCSMM promote research and innovation in the field of sterile processing? → By encouraging members to participate in research and share findings