IAHCSMM CRCST Exam | 2025/2026 Actual Exam – 150
Verified Questions and Correct Answers | Certified
Registered Central Service Technician (CRCST)
**Question 1:** Which of the following systems provides supplies and instruments
for individual surgical procedures?
- A) Exchange carts
- B) Par-level
- **C) Case cart**
- D) Requisition
**Answer: C) Case cart**
**Rationale:** The case cart system is designed to pick all necessary supplies
and instruments for a specific scheduled surgical procedure. It is organized by
patient and procedure, which helps improve efficiency and reduce the risk of
missing items.
---
**Question 2:** Which of the following are classified as high-level disinfectants?
- **A) Glutaraldehyde and OPA**
- B) Glutaraldehyde and Phenolics
- C) Quaternary Ammonium Compounds and Phenolics
- D) Halogens and OPA
**Answer: A) Glutaraldehyde and OPA (Ortho-phthalaldehyde)**
**Rationale:** High-level disinfection destroys all microorganisms except large
numbers of bacterial spores. Glutaraldehyde and OPA are both classified as high-
level disinfectants commonly used for heat-sensitive semi-critical devices like
endoscopes.
, ---
**Question 3:** True or False: To prevent aerosols, items should be brushed below
the surface of the water.
**Answer: True**
**Rationale:** Brushing instruments below the water's surface prevents the
splashing and spraying of contaminated water, which reduces the generation of
aerosols that can spread infectious microorganisms to the technician or surrounding
area.
---
**Question 4:** Consistent delivery of products and services according to
established standards; it "integrates" the concerns for the customers with those of
the department and facility __________
- A) Validation
- **B) Quality**
- C) Sterility Assurance Level (SAL)
- D) ISO 9000
**Answer: B) Quality**
**Rationale:** Quality in Central Service refers to meeting established standards
consistently to ensure customer satisfaction and regulatory compliance. It
integrates patient safety with department efficiency.
---
**Question 5:** For safety purposes, Central Service Technicians should consider all
microorganisms in the decontamination area:
Verified Questions and Correct Answers | Certified
Registered Central Service Technician (CRCST)
**Question 1:** Which of the following systems provides supplies and instruments
for individual surgical procedures?
- A) Exchange carts
- B) Par-level
- **C) Case cart**
- D) Requisition
**Answer: C) Case cart**
**Rationale:** The case cart system is designed to pick all necessary supplies
and instruments for a specific scheduled surgical procedure. It is organized by
patient and procedure, which helps improve efficiency and reduce the risk of
missing items.
---
**Question 2:** Which of the following are classified as high-level disinfectants?
- **A) Glutaraldehyde and OPA**
- B) Glutaraldehyde and Phenolics
- C) Quaternary Ammonium Compounds and Phenolics
- D) Halogens and OPA
**Answer: A) Glutaraldehyde and OPA (Ortho-phthalaldehyde)**
**Rationale:** High-level disinfection destroys all microorganisms except large
numbers of bacterial spores. Glutaraldehyde and OPA are both classified as high-
level disinfectants commonly used for heat-sensitive semi-critical devices like
endoscopes.
, ---
**Question 3:** True or False: To prevent aerosols, items should be brushed below
the surface of the water.
**Answer: True**
**Rationale:** Brushing instruments below the water's surface prevents the
splashing and spraying of contaminated water, which reduces the generation of
aerosols that can spread infectious microorganisms to the technician or surrounding
area.
---
**Question 4:** Consistent delivery of products and services according to
established standards; it "integrates" the concerns for the customers with those of
the department and facility __________
- A) Validation
- **B) Quality**
- C) Sterility Assurance Level (SAL)
- D) ISO 9000
**Answer: B) Quality**
**Rationale:** Quality in Central Service refers to meeting established standards
consistently to ensure customer satisfaction and regulatory compliance. It
integrates patient safety with department efficiency.
---
**Question 5:** For safety purposes, Central Service Technicians should consider all
microorganisms in the decontamination area:
