IAHCSMM Standards and Guidelines 2 — Questions and Answers
Question 1: AAMI TIR34 primarily addresses reprocessing standards for:
- Single-use surgical instruments
- Water quality for reprocessing medical devices in healthcare facilities (Correct answer)
- Steam sterilizer maintenance schedules
- Sharps disposal procedures
Correct answer: Water quality for reprocessing medical devices in healthcare facilities
AAMI TIR34 provides guidance on water quality for the reprocessing of medical devices, addressing the impact of water purity on cleaning and sterilization efficacy.
AAMI TIR34 (Water for the reprocessing of medical devices) addresses the quality of water used at each stage of instrument reprocessing. Tap water used for rinsing after manual cleaning may leave mineral deposits that interfere with sterilization or damage instruments. The standard recommends purified water (e.g., deionized or reverse osmosis water) for final rinse before packaging and sterilization. Poor water quality is a common root cause of instrument spotting, corrosion, and sterilization failures.
Question 2: ISO 11135 is an international standard that specifically covers:
- Moist heat (steam) sterilization validation
- Sterilization of health care products using ethylene oxide (EO) (Correct answer)
- Low-temperature hydrogen peroxide sterilization
- Dry heat sterilization of laboratory glassware
Correct answer: Sterilization of health care products using ethylene oxide (EO)
ISO 11135 covers requirements for the development, validation, and routine control of ethylene oxide (EO) sterilization processes for medical devices.
The ISO 11135 standard (Sterilization of health care products - Ethylene oxide) defines requirements for ethylene oxide sterilization process development, validation, and routine monitoring. EO is used for heat-sensitive devices that cannot withstand steam or other thermal processes. ISO 11135 covers parametric testing, biological indicator requirements, aeration requirements to remove EO residuals, and documentation.
Question 3: According to ANSI/AAMI ST79, which type of sterilization monitoring provides the most direct measure of a sterilization process ability to kill the most resistant microorganisms?
- Chemical indicators (Class 1)
- Mechanical indicators (printouts)
- Biological indicators (BIs) (Correct answer)
- Integrating chemical indicators (Class 5)
Correct answer: Biological indicators (BIs)
Biological indicators directly challenge the sterilization process with a known population of highly resistant bacterial spores (Geobacillus stearothermophilus for steam), providing the most direct evidence of sterilization efficacy.
ANSI/AAMI ST79 defines three categories of sterilization monitoring: mechanical (gauges, printouts), chemical (indicators), and biological (BIs). BIs contain a standardized population of highly resistant bacterial spores. For steam sterilization, Geobacillus stearothermophilus spores are used. A negative BI result (no growth) is the most direct evidence that sterilizing conditions were achieved. AAMI and TJC require BI testing at least weekly for each sterilizer and for every implant load.
Question 4: The CDC Guideline for Disinfection and Sterilization in Healthcare Facilities is best described as:
- A federal law with legal penalties for non-compliance
- An evidence-based guideline providing recommendations for disinfection and sterilization practices (Correct answer)
- A manufacturer-specific reprocessing protocol
- A Joint Commission inspection checklist
Correct answer: An evidence-based guideline providing recommendations for disinfection and sterilization practices
The CDC Guideline is an evidence-based document providing recommendations for disinfection and sterilization practices, widely referenced by healthcare facilities and accrediting bodies.
The CDC Guideline for Disinfection and Sterilization in Healthcare Facilities provides comprehensive, evidence-based recommendations covering Spaulding Classification, disinfection levels, sterilization methods, endoscope reprocessing, and surface disinfection. While not a federal law, the guideline is extensively cited by The Joint Commission, CMS, and state health departments, making compliance essentially mandatory for accredited facilities.
Question 5: When a manufacturer IFU conflicts with a general AAMI standard, which should take precedence for reprocessing a specific device?
- The AAMI standard always supersedes manufacturer IFUs
- The manufacturer IFU takes precedence for the specific device, as it reflects validated reprocessing for that device (Correct answer)
- The facility own protocol supersedes both
- Whichever is most convenient given available equipment
Correct answer: The manufacturer IFU takes precedence for the specific device, as it reflects validated reprocessing for that device
The manufacturer IFU takes precedence for reprocessing a specific device because it reflects testing and validation performed on that specific instrument design.
AAMI standards, ANSI guidelines, and CDC recommendations provide general frameworks, but manufacturer IFUs are validated for the specific device materials, geometry, and contamination challenges. The Joint Commission, FDA, and AAMI all require facilities to follow manufacturer IFUs when reprocessing devices. If a facility cannot meet IFU requirements, the device should not be reprocessed at that facility.
Question 6: OSHA Bloodborne Pathogen Standard (29 CFR 1910.1030) applies to CS workers primarily because:
- CS workers perform patient blood draws
- CS decontamination staff have occupational exposure to blood and potentially infectious materials on used instruments (Correct answer)
- CS workers must prescribe post-exposure medications
- CS workers handle radioactive waste materials
Correct answer: CS decontamination staff have occupational exposure to blood and potentially infectious materials on used instruments
CS decontamination workers have occupational exposure to blood and potentially infectious materials on used surgical and procedural instruments, making them subject to OSHA Bloodborne Pathogen Standard.
OSHA 29 CFR 1910.1030 requires employers to protect workers with occupational exposure to blood or other potentially infectious materials (OPIM). CS decontamination staff handle instruments contaminated with blood, body fluids, and tissues, making them a high-exposure-risk occupational group. Requirements include: exposure control plan, engineering controls, PPE (gloves, face protection, gowns), hepatitis B vaccination offer, post-exposure protocol, and annual BBP training documentation.
IAHCSMM Standards and Guidelines 2
AAMI TIR34 primarily addresses reprocessing standards for: