HSPA CRCST EXAM 2025/2026 | CERTIFIED REGISTERED CENTRAL
SERVICE TECHNICIAN EXAM WITH VERIFIED QUESTIONS & ACCURATE
ANSWERS
1. What is the name of the spore used in biological indicators (BIs) for steam
sterilization?
Bacillus subtilis
Clostridium perfringens
Bacillus cereus
Geobacillus stearothermophilus
2. Which organization is responsible for establishing guidelines for disinfection
and sterilization practices in healthcare?
Centers for Disease Control and Prevention (CDC)
Food and Drug Administration (FDA)
World Health Organization (WHO)
Association for the Advancement of Medical Instrumentation
(AAMI)
3. In a case where a patient has a complex fracture requiring surgical
intervention, which procedure would be most appropriate to ensure proper
healing?
Closed Reduction
Casting
Physical Therapy
Open Reduction Internal Fixation (ORIF)
,4. Describe the role of the Association for the Advancement of Medical
Instrumentation (AAMI) in the context of medical sterilization.
AAMI regulates the approval of new medical devices and drugs.
AAMI conducts research on infectious diseases.
AAMI provides training for healthcare professionals on patient care.
AAMI develops standards and guidelines to ensure safe and
effective sterilization and disinfection practices in healthcare
settings.
5. In a surgical setting, if a surgeon needs to use a cutting instrument, which of
the following instruments would they likely request based on the suffix
'tome'?
Suture needle
Thermometer
Scalpel
Suction device
6. What type of disinfection is required for semi-critical items that touch
mucous membranes?
High-level disinfection
Intermediate-level disinfection
Low-level disinfection
Sterilization
7. What is the required relative humidity range for saturated steam used in
sterilization?
, 97-100%
50-60%
80-90%
100-110%
8. Which of the following best defines biocides?
Biocides are only chemical treatments that kills microbes.
A biocide inhibits the growth of microbes but does not kill them.
A biocide kills microbes.
Biocide describes all antimicrobials that can be used to control
microbes.
9. If a healthcare facility consistently fails to degas the water in their ultrasonic
cleaners, what potential impact could this have on their sterilization
procedures?
Improved safety for staff handling equipment
Enhanced longevity of the ultrasonic cleaner
Increased speed of the cleaning process
Decreased effectiveness of the sterilization process
10. What does the US Department of Transportation regulate in relation to
medical instruments?
The manufacturing of surgical instruments
The disposal of expired medical supplies
The storage of medical equipment in hospitals
, The transportation of clean and soiled instruments between
facilities
11. Describe the implications of having a wet pack after a sterilization cycle.
A wet pack suggests that the sterilization cycle was successful and
effective.
A wet pack ensures that the instruments are sterile and ready for
use.
A wet pack indicates that the sterilization process may have been
compromised, potentially leading to contamination.
A wet pack is a sign of proper sterilization technique.
12. What is the primary purpose of antiseptics in medical settings?
To kill all microorganisms on surfaces
To slow the growth of microorganisms on living tissue
To sterilize surgical instruments
To disinfect non-living surfaces
13. Describe the significance of maintaining a relative humidity of 97-100% in
saturated steam sterilization.
A relative humidity of 97-100% prevents the formation of
condensation in the sterilization chamber.
A relative humidity of 97-100% is required to enhance the flavor of
sterilized materials.
This humidity level is necessary to prevent damage to the
sterilization equipment.
SERVICE TECHNICIAN EXAM WITH VERIFIED QUESTIONS & ACCURATE
ANSWERS
1. What is the name of the spore used in biological indicators (BIs) for steam
sterilization?
Bacillus subtilis
Clostridium perfringens
Bacillus cereus
Geobacillus stearothermophilus
2. Which organization is responsible for establishing guidelines for disinfection
and sterilization practices in healthcare?
Centers for Disease Control and Prevention (CDC)
Food and Drug Administration (FDA)
World Health Organization (WHO)
Association for the Advancement of Medical Instrumentation
(AAMI)
3. In a case where a patient has a complex fracture requiring surgical
intervention, which procedure would be most appropriate to ensure proper
healing?
Closed Reduction
Casting
Physical Therapy
Open Reduction Internal Fixation (ORIF)
,4. Describe the role of the Association for the Advancement of Medical
Instrumentation (AAMI) in the context of medical sterilization.
AAMI regulates the approval of new medical devices and drugs.
AAMI conducts research on infectious diseases.
AAMI provides training for healthcare professionals on patient care.
AAMI develops standards and guidelines to ensure safe and
effective sterilization and disinfection practices in healthcare
settings.
5. In a surgical setting, if a surgeon needs to use a cutting instrument, which of
the following instruments would they likely request based on the suffix
'tome'?
Suture needle
Thermometer
Scalpel
Suction device
6. What type of disinfection is required for semi-critical items that touch
mucous membranes?
High-level disinfection
Intermediate-level disinfection
Low-level disinfection
Sterilization
7. What is the required relative humidity range for saturated steam used in
sterilization?
, 97-100%
50-60%
80-90%
100-110%
8. Which of the following best defines biocides?
Biocides are only chemical treatments that kills microbes.
A biocide inhibits the growth of microbes but does not kill them.
A biocide kills microbes.
Biocide describes all antimicrobials that can be used to control
microbes.
9. If a healthcare facility consistently fails to degas the water in their ultrasonic
cleaners, what potential impact could this have on their sterilization
procedures?
Improved safety for staff handling equipment
Enhanced longevity of the ultrasonic cleaner
Increased speed of the cleaning process
Decreased effectiveness of the sterilization process
10. What does the US Department of Transportation regulate in relation to
medical instruments?
The manufacturing of surgical instruments
The disposal of expired medical supplies
The storage of medical equipment in hospitals
, The transportation of clean and soiled instruments between
facilities
11. Describe the implications of having a wet pack after a sterilization cycle.
A wet pack suggests that the sterilization cycle was successful and
effective.
A wet pack ensures that the instruments are sterile and ready for
use.
A wet pack indicates that the sterilization process may have been
compromised, potentially leading to contamination.
A wet pack is a sign of proper sterilization technique.
12. What is the primary purpose of antiseptics in medical settings?
To kill all microorganisms on surfaces
To slow the growth of microorganisms on living tissue
To sterilize surgical instruments
To disinfect non-living surfaces
13. Describe the significance of maintaining a relative humidity of 97-100% in
saturated steam sterilization.
A relative humidity of 97-100% prevents the formation of
condensation in the sterilization chamber.
A relative humidity of 97-100% is required to enhance the flavor of
sterilized materials.
This humidity level is necessary to prevent damage to the
sterilization equipment.
