AALAS Laboratory Animal Technician (LAT)
Certification Exam Questions and Correct
Answers Latest Top Rated Latest Version
QUESTION>> 1:
Which federal law primarily regulates the use of animals in research, exhibition, and transport in
the United States?
A. The Public Health Service Policy
B. The Animal Welfare Act (AWA)
C. The Health Research Extension Act
D. The Laboratory Animal Welfare Guide
CORRECT ANSWERS>> B
RATIONALE: The Animal Welfare Act (administered by USDA) sets legal standards for the
humane care, treatment, and handling of most warm-blooded animals used in research,
exhibition, or transport.
QUESTION>> 2:
According to the Animal Welfare Act, which animal species are not covered?
A. Dogs
B. Guinea pigs
C. Farm animals used in agricultural research
D. Nonhuman primates
CORRECT ANSWERS>> C
RATIONALE: Farm animals used for food or fiber research are exempt from AWA provisions
because they fall under agricultural rather than biomedical regulations.
QUESTION>> 3:
The Guide for the Care and Use of Laboratory Animals is published by which organization?
A. U.S. Department of Agriculture (USDA)
B. American Veterinary Medical Association (AVMA)
C. National Research Council (NRC)
D. Office of Laboratory Animal Welfare (OLAW)
,CORRECT ANSWERS>> C
RATIONALE: The NRC, part of the National Academies of Sciences, develops the Guide, which
provides standards for laboratory animal care and is required by OLAW and AAALAC.
QUESTION>> 4:
Which federal agency enforces the Animal Welfare Act?
A. NIH Office of Laboratory Animal Welfare (OLAW)
B. Animal and Plant Health Inspection Service (APHIS)
C. Food and Drug Administration (FDA)
D. Centers for Disease Control and Prevention (CDC)
CORRECT ANSWERS>> B
RATIONALE: APHIS, under the USDA, ensures compliance with the AWA through unannounced
inspections and licensing of facilities.
QUESTION>> 5:
The Institutional Animal Care and Use Committee (IACUC) must include at least:
A. A veterinarian, a scientist, and an unaffiliated member
B. Two veterinarians and a chairperson
C. A facility manager and an attending veterinarian
D. A principal investigator and a student
CORRECT ANSWERS>> A
RATIONALE: Federal regulations require at least one veterinarian, one practicing scientist, and
one unaffiliated member to maintain ethical oversight.
QUESTION>> 6:
Replacement, Reduction, and Refinement refer to:
A. The “3Rs” guiding principles in animal research ethics
B. The steps in euthanasia procedures
C. The reporting requirements for animal use
D. The stages of animal facility maintenance
CORRECT ANSWERS>> A
RATIONALE: The 3Rs aim to minimize animal use and suffering: Replace animals when possible,
Reduce numbers used, and Refine techniques to improve welfare.
,QUESTION>> 7:
Which body assesses and accredits animal care programs worldwide?
A. OLAW
B. AVMA
C. AAALAC International
D. FDA
CORRECT ANSWERS>> C
RATIONALE: AAALAC International (Association for Assessment and Accreditation of Laboratory
Animal Care) provides voluntary accreditation based on the Guide.
QUESTION>> 8:
A technician suspects that a research animal is in pain. The most appropriate immediate action
is to:
A. Record the observation and wait for the next IACUC meeting
B. Report the observation to the veterinarian or supervisor immediately
C. Euthanize the animal without approval
D. Ignore it unless the principal investigator instructs intervention
CORRECT ANSWERS>> B
RATIONALE: Animal technicians are responsible for reporting signs of pain or distress promptly
to ensure veterinary evaluation and relief.
QUESTION>> 9:
Which type of room should have negative air pressure relative to corridors?
A. Animal housing rooms
B. Surgical suites
C. Quarantine and isolation rooms
D. Offices
CORRECT ANSWERS>> C
RATIONALE: Negative pressure prevents airborne pathogens in isolation or quarantine rooms
from escaping into adjacent clean areas.
, QUESTION>> 10:
Which environmental parameter most directly affects animal metabolic rate?
A. Humidity
B. Temperature
C. Ventilation rate
D. Lighting schedule
CORRECT ANSWERS>> B
RATIONALE: Temperature has the greatest influence on an animal’s metabolic rate and
thermoregulation.
QUESTION>> 11:
Which rodent species is known for coprophagy as part of normal digestive behavior?
A. Guinea pig
B. Rat
C. Hamster
D. Rabbit
CORRECT ANSWERS>> D
RATIONALE: Rabbits produce soft cecal pellets that they re-ingest to recover nutrients such as B
vitamins.
QUESTION>> 12:
The gestation period of a mouse is approximately:
A. 14 days
B. 19–21 days
C. 28 days
D. 35 days
CORRECT ANSWERS>> B
RATIONALE: Mice have a short pregnancy of about 19–21 days, followed by rapid postnatal
development.
QUESTION>> 13:
Which species has a requirement for dietary vitamin C?
A. Rat
B. Mouse
Certification Exam Questions and Correct
Answers Latest Top Rated Latest Version
QUESTION>> 1:
Which federal law primarily regulates the use of animals in research, exhibition, and transport in
the United States?
A. The Public Health Service Policy
B. The Animal Welfare Act (AWA)
C. The Health Research Extension Act
D. The Laboratory Animal Welfare Guide
CORRECT ANSWERS>> B
RATIONALE: The Animal Welfare Act (administered by USDA) sets legal standards for the
humane care, treatment, and handling of most warm-blooded animals used in research,
exhibition, or transport.
QUESTION>> 2:
According to the Animal Welfare Act, which animal species are not covered?
A. Dogs
B. Guinea pigs
C. Farm animals used in agricultural research
D. Nonhuman primates
CORRECT ANSWERS>> C
RATIONALE: Farm animals used for food or fiber research are exempt from AWA provisions
because they fall under agricultural rather than biomedical regulations.
QUESTION>> 3:
The Guide for the Care and Use of Laboratory Animals is published by which organization?
A. U.S. Department of Agriculture (USDA)
B. American Veterinary Medical Association (AVMA)
C. National Research Council (NRC)
D. Office of Laboratory Animal Welfare (OLAW)
,CORRECT ANSWERS>> C
RATIONALE: The NRC, part of the National Academies of Sciences, develops the Guide, which
provides standards for laboratory animal care and is required by OLAW and AAALAC.
QUESTION>> 4:
Which federal agency enforces the Animal Welfare Act?
A. NIH Office of Laboratory Animal Welfare (OLAW)
B. Animal and Plant Health Inspection Service (APHIS)
C. Food and Drug Administration (FDA)
D. Centers for Disease Control and Prevention (CDC)
CORRECT ANSWERS>> B
RATIONALE: APHIS, under the USDA, ensures compliance with the AWA through unannounced
inspections and licensing of facilities.
QUESTION>> 5:
The Institutional Animal Care and Use Committee (IACUC) must include at least:
A. A veterinarian, a scientist, and an unaffiliated member
B. Two veterinarians and a chairperson
C. A facility manager and an attending veterinarian
D. A principal investigator and a student
CORRECT ANSWERS>> A
RATIONALE: Federal regulations require at least one veterinarian, one practicing scientist, and
one unaffiliated member to maintain ethical oversight.
QUESTION>> 6:
Replacement, Reduction, and Refinement refer to:
A. The “3Rs” guiding principles in animal research ethics
B. The steps in euthanasia procedures
C. The reporting requirements for animal use
D. The stages of animal facility maintenance
CORRECT ANSWERS>> A
RATIONALE: The 3Rs aim to minimize animal use and suffering: Replace animals when possible,
Reduce numbers used, and Refine techniques to improve welfare.
,QUESTION>> 7:
Which body assesses and accredits animal care programs worldwide?
A. OLAW
B. AVMA
C. AAALAC International
D. FDA
CORRECT ANSWERS>> C
RATIONALE: AAALAC International (Association for Assessment and Accreditation of Laboratory
Animal Care) provides voluntary accreditation based on the Guide.
QUESTION>> 8:
A technician suspects that a research animal is in pain. The most appropriate immediate action
is to:
A. Record the observation and wait for the next IACUC meeting
B. Report the observation to the veterinarian or supervisor immediately
C. Euthanize the animal without approval
D. Ignore it unless the principal investigator instructs intervention
CORRECT ANSWERS>> B
RATIONALE: Animal technicians are responsible for reporting signs of pain or distress promptly
to ensure veterinary evaluation and relief.
QUESTION>> 9:
Which type of room should have negative air pressure relative to corridors?
A. Animal housing rooms
B. Surgical suites
C. Quarantine and isolation rooms
D. Offices
CORRECT ANSWERS>> C
RATIONALE: Negative pressure prevents airborne pathogens in isolation or quarantine rooms
from escaping into adjacent clean areas.
, QUESTION>> 10:
Which environmental parameter most directly affects animal metabolic rate?
A. Humidity
B. Temperature
C. Ventilation rate
D. Lighting schedule
CORRECT ANSWERS>> B
RATIONALE: Temperature has the greatest influence on an animal’s metabolic rate and
thermoregulation.
QUESTION>> 11:
Which rodent species is known for coprophagy as part of normal digestive behavior?
A. Guinea pig
B. Rat
C. Hamster
D. Rabbit
CORRECT ANSWERS>> D
RATIONALE: Rabbits produce soft cecal pellets that they re-ingest to recover nutrients such as B
vitamins.
QUESTION>> 12:
The gestation period of a mouse is approximately:
A. 14 days
B. 19–21 days
C. 28 days
D. 35 days
CORRECT ANSWERS>> B
RATIONALE: Mice have a short pregnancy of about 19–21 days, followed by rapid postnatal
development.
QUESTION>> 13:
Which species has a requirement for dietary vitamin C?
A. Rat
B. Mouse
