,LATG Exam Prep 2026: Master
Laboratory Animal Practices and
Management Exam Questions & Detailed
Explanations
Subject: Laboratory Animal Practices and Management (LATG Certification)
Question 1: In a research facility, an investigator proposes a study involving a species not
currently listed in the institution's OLAW Assurance. Which of the following is the most
appropriate action for the IACUC to take according to PHS Policy?
A) Approve the study provisionally, provided the investigator agrees to abide by the Guide.
B) Require an amendment to the OLAW Assurance before the study can be reviewed.
C) Defer the protocol until the institution has updated its PHS Assurance to include the new
species.
D) Allow the study to proceed if it is funded by private, non-federal sources.
Correct Answer: C) Defer the protocol until the institution has updated its PHS Assurance
to include the new species.
Explanation: PHS Policy requires that institutions have an approved Animal Welfare Assurance
on file with OLAW. If an institution plans to use a species not previously covered by its
assurance, it must first update its assurance document through OLAW to include that species
before the IACUC can perform a review of protocols involving that animal.
Question 2: Which of the following best describes the principle of 'Total Quality Management'
(TQM) as applied to a Laboratory Animal Resource Center (LARC)?
A) The focus on maximizing the number of animals produced to reduce cost per unit.
B) A management approach that centers on continuous improvement of processes to meet or
exceed stakeholder expectations.
C) The immediate removal of any staff member who fails to follow Standard Operating
Procedures (SOPs).
D) A regulatory requirement mandate enforced by the USDA to ensure all animals have 24-hour
access to water.
,Correct Answer: B) A management approach that centers on continuous improvement of
processes to meet or exceed stakeholder expectations.
Explanation: TQM is a comprehensive management philosophy that emphasizes long-term
success through customer satisfaction, employee involvement, and a culture of continuous
improvement in all organizational processes, rather than just regulatory compliance or
production volume.
Question 3: When planning the environmental parameters for a new rodent housing facility, what
is the primary limitation of using a high-efficiency particulate air (HEPA) filtration system?
A) It cannot filter out volatile organic compounds (VOCs) or gaseous substances.
B) It significantly increases the humidity levels in the room to unmanageable levels.
C) It is ineffective against particles smaller than 0.3 micrometers.
D) It requires excessive electrical power that often exceeds local building codes.
Correct Answer: A) It cannot filter out volatile organic compounds (VOCs) or gaseous
substances.
Explanation: HEPA filters are highly effective at capturing particulate matter, including bacteria
and viruses, by physical interception and diffusion. However, they are designed to filter solids,
not gases or vapors. Specialized activated carbon filters are required to remove gaseous
contaminants or VOCs.
Question 4: In the context of disaster planning, which component is considered the most critical
"single point of failure" for a facility housing large numbers of immunocompromised mice?
A) The loss of secondary power (generators).
B) The failure of the primary ventilation system leading to ammonia buildup.
C) The breakdown of the cage-washing equipment.
D) The unavailability of specialized technical staff to perform daily checks.
Correct Answer: B) The failure of the primary ventilation system leading to ammonia
buildup.
Explanation: While generators and staff are vital, ventilation is the life-support system for high-
density rodent housing. An interruption in airflow leads to rapid accumulation of waste gases,
specifically ammonia and CO2, which can cause severe health issues or mortality in sensitive
animals within hours, far faster than other logistical failures.
, Question 5: A facility manager is reviewing the "Total Cost of Ownership" (TCO) for a new
automated cage-washing system. Which of the following is an often-overlooked variable that
must be included in the calculation?
A) The initial purchase price of the equipment.
B) The cost of shipping and installation.
C) The projected cost of utilities, maintenance contracts, and specialized cleaning detergents
over the machine's lifespan.
D) The number of animals the facility currently houses.
Correct Answer: C) The projected cost of utilities, maintenance contracts, and specialized
cleaning detergents over the machine's lifespan.
Explanation: TCO is a financial estimate intended to help buyers determine the direct and
indirect costs of a product. In animal facilities, the purchase price is only a fraction of the cost;
utility consumption (water/energy), chemical supplies, and frequent preventative maintenance
are the primary drivers of long-term operational expenditure.
Question 6: Which regulatory document must an institution submit to OLAW to provide a
description of the animal care and use program, including the lines of authority and
responsibility?
A) The USDA Annual Report.
B) The Animal Welfare Assurance.
C) The semi-annual IACUC report.
D) The AVMA Guidelines on Euthanasia.
Correct Answer: B) The Animal Welfare Assurance.
Explanation: The Animal Welfare Assurance is the cornerstone document for PHS-funded
research. It formally commits the institution to comply with the PHS Policy, the Guide for the
Care and Use of Laboratory Animals, and the Animal Welfare Act.
Question 7: When conducting a risk assessment for a new BSL-2 protocol involving zoonotic
pathogens, which factor is most crucial for determining the necessary PPE and containment
procedures?
A) The cost of the PPE relative to the grant budget.
B) The potential for aerosolization and the route of transmission of the agent.
Laboratory Animal Practices and
Management Exam Questions & Detailed
Explanations
Subject: Laboratory Animal Practices and Management (LATG Certification)
Question 1: In a research facility, an investigator proposes a study involving a species not
currently listed in the institution's OLAW Assurance. Which of the following is the most
appropriate action for the IACUC to take according to PHS Policy?
A) Approve the study provisionally, provided the investigator agrees to abide by the Guide.
B) Require an amendment to the OLAW Assurance before the study can be reviewed.
C) Defer the protocol until the institution has updated its PHS Assurance to include the new
species.
D) Allow the study to proceed if it is funded by private, non-federal sources.
Correct Answer: C) Defer the protocol until the institution has updated its PHS Assurance
to include the new species.
Explanation: PHS Policy requires that institutions have an approved Animal Welfare Assurance
on file with OLAW. If an institution plans to use a species not previously covered by its
assurance, it must first update its assurance document through OLAW to include that species
before the IACUC can perform a review of protocols involving that animal.
Question 2: Which of the following best describes the principle of 'Total Quality Management'
(TQM) as applied to a Laboratory Animal Resource Center (LARC)?
A) The focus on maximizing the number of animals produced to reduce cost per unit.
B) A management approach that centers on continuous improvement of processes to meet or
exceed stakeholder expectations.
C) The immediate removal of any staff member who fails to follow Standard Operating
Procedures (SOPs).
D) A regulatory requirement mandate enforced by the USDA to ensure all animals have 24-hour
access to water.
,Correct Answer: B) A management approach that centers on continuous improvement of
processes to meet or exceed stakeholder expectations.
Explanation: TQM is a comprehensive management philosophy that emphasizes long-term
success through customer satisfaction, employee involvement, and a culture of continuous
improvement in all organizational processes, rather than just regulatory compliance or
production volume.
Question 3: When planning the environmental parameters for a new rodent housing facility, what
is the primary limitation of using a high-efficiency particulate air (HEPA) filtration system?
A) It cannot filter out volatile organic compounds (VOCs) or gaseous substances.
B) It significantly increases the humidity levels in the room to unmanageable levels.
C) It is ineffective against particles smaller than 0.3 micrometers.
D) It requires excessive electrical power that often exceeds local building codes.
Correct Answer: A) It cannot filter out volatile organic compounds (VOCs) or gaseous
substances.
Explanation: HEPA filters are highly effective at capturing particulate matter, including bacteria
and viruses, by physical interception and diffusion. However, they are designed to filter solids,
not gases or vapors. Specialized activated carbon filters are required to remove gaseous
contaminants or VOCs.
Question 4: In the context of disaster planning, which component is considered the most critical
"single point of failure" for a facility housing large numbers of immunocompromised mice?
A) The loss of secondary power (generators).
B) The failure of the primary ventilation system leading to ammonia buildup.
C) The breakdown of the cage-washing equipment.
D) The unavailability of specialized technical staff to perform daily checks.
Correct Answer: B) The failure of the primary ventilation system leading to ammonia
buildup.
Explanation: While generators and staff are vital, ventilation is the life-support system for high-
density rodent housing. An interruption in airflow leads to rapid accumulation of waste gases,
specifically ammonia and CO2, which can cause severe health issues or mortality in sensitive
animals within hours, far faster than other logistical failures.
, Question 5: A facility manager is reviewing the "Total Cost of Ownership" (TCO) for a new
automated cage-washing system. Which of the following is an often-overlooked variable that
must be included in the calculation?
A) The initial purchase price of the equipment.
B) The cost of shipping and installation.
C) The projected cost of utilities, maintenance contracts, and specialized cleaning detergents
over the machine's lifespan.
D) The number of animals the facility currently houses.
Correct Answer: C) The projected cost of utilities, maintenance contracts, and specialized
cleaning detergents over the machine's lifespan.
Explanation: TCO is a financial estimate intended to help buyers determine the direct and
indirect costs of a product. In animal facilities, the purchase price is only a fraction of the cost;
utility consumption (water/energy), chemical supplies, and frequent preventative maintenance
are the primary drivers of long-term operational expenditure.
Question 6: Which regulatory document must an institution submit to OLAW to provide a
description of the animal care and use program, including the lines of authority and
responsibility?
A) The USDA Annual Report.
B) The Animal Welfare Assurance.
C) The semi-annual IACUC report.
D) The AVMA Guidelines on Euthanasia.
Correct Answer: B) The Animal Welfare Assurance.
Explanation: The Animal Welfare Assurance is the cornerstone document for PHS-funded
research. It formally commits the institution to comply with the PHS Policy, the Guide for the
Care and Use of Laboratory Animals, and the Animal Welfare Act.
Question 7: When conducting a risk assessment for a new BSL-2 protocol involving zoonotic
pathogens, which factor is most crucial for determining the necessary PPE and containment
procedures?
A) The cost of the PPE relative to the grant budget.
B) The potential for aerosolization and the route of transmission of the agent.
