Laboratory Animal Technican Exam (Lat)

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1/155 Questions

Mice that have had DNA from a different animal inserted into thier genes are termed______
- Athymic
- Transgenic
- Immonunocompromised
- Embryonic

About This Quiz

A exmaple of the possible test question taken from workbook manual, and other sources

Laboratory Animal Technican Exam (Lat) - Quiz

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2.

Which of the following will prevent cross-contamination within a facility ?
- Wearing protective clothing
- Separating quarantine animals from study animals
- Disinfecting equipment
- All of the above are correct
Correct Answer

A. All of the above are correct

Explanation

Wearing protective clothing, separating quarantine animals from study animals, and disinfecting equipment are all measures that can prevent cross-contamination within a facility. Wearing protective clothing, such as gloves and lab coats, can prevent the transfer of contaminants from one area to another. Separating quarantine animals from study animals ensures that any potential pathogens or diseases are contained and do not spread to healthy animals. Disinfecting equipment regularly helps to kill any bacteria or viruses that may be present, reducing the risk of contamination. Therefore, all of the above options are correct in preventing cross-contamination within a facility.

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3.

What is the term used to describes the act of inducing humane death in an animal?
- Euthanasia
- Anesthetize
- Kill
- None of the above
Correct Answer

A. Euthanasia

Explanation

Euthanasia is the correct answer because it refers to the act of inducing humane death in an animal. This term is commonly used in veterinary medicine to describe the process of intentionally ending an animal's life to alleviate suffering or for other compassionate reasons. Anesthetize, on the other hand, refers to the act of administering anesthesia to an animal, while kill is a more general term that does not necessarily imply a humane death. Therefore, neither anesthetize nor kill accurately describe the act of inducing humane death in an animal.

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1
4.

SOPs must be in place for the housing, feeding, handling, and care of animals in GLP studies.
- True
- False
Correct Answer

A. True

Explanation

The statement is true because in order to ensure the validity and reliability of GLP (Good Laboratory Practice) studies, standard operating procedures (SOPs) must be established and followed for the housing, feeding, handling, and care of animals involved in these studies. This is important to maintain consistent and ethical treatment of the animals, as well as to minimize any potential confounding factors that could impact the study results. SOPs provide clear guidelines and protocols for the proper management and welfare of the animals, ensuring that they are treated in a humane and responsible manner throughout the study.

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5.

What does GLP stand for?
- Good Laboratory Practices
- Great Laboratory Practices
- Good Land Practices
- Good Laboratory Principles
Correct Answer

A. Good Laboratory Practices

Explanation

GLP stands for Good Laboratory Practices, which refers to a set of guidelines and regulations that ensure the quality and integrity of laboratory experiments and data. These practices include proper documentation, equipment calibration, sample handling, and personnel training. By following GLP, laboratories can maintain consistency, accuracy, and reliability in their research and testing processes, ultimately leading to trustworthy and valid results.

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6.

In the case of animals traumatized due to fighting animal care techinicians can__________without the knowledge and/or supervision of the facility veterinarian,
- Adminster antibiotics to animals
- Amputate digits
- Separate the fighting animals
- Put drains into a wound
Correct Answer

A. Separate the fighting animals

Explanation

In the case of animals traumatized due to fighting, it is necessary to separate the fighting animals. This is important to prevent further harm or injuries to the animals involved. Animal care technicians can do this without the knowledge and/or supervision of the facility veterinarian as it is a basic and immediate action that needs to be taken to ensure the safety and well-being of the animals.

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1
7.

What is a Abscesses ?
- The movement of a bone away from the midline of the body or away from the axis of an extremity
- Swellings filled with purulent material (pus) which is a mixture of dead bacteria, liquefied tissue and white blood cells. They result from bacteria deposited deep under the skin at the site of a trauma
- Like a tumor
- None of above
Correct Answer

A. Swellings filled with purulent material (pus) which is a mixture of dead bacteria, liquefied tissue and white blood cells. They result from bacteria deposited deep under the skin at the site of a trauma

Explanation

Abscesses are swellings filled with pus that occur as a result of bacteria being deposited deep under the skin at the site of a trauma. Pus is a mixture of dead bacteria, liquefied tissue, and white blood cells. This answer accurately describes the characteristics and formation of abscesses.

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8.

The IACUC ___________
- Reviews animal use protocols
- Conducts inspections of animal facilities and reviews intitutional animal use programs every six months
- Can serve as an information and resource liaison on animal welfare and research concerns
- All above
Correct Answer

A. All above

Explanation

The IACUC (Institutional Animal Care and Use Committee) is responsible for reviewing animal use protocols, conducting inspections of animal facilities, and reviewing institutional animal use programs every six months. Additionally, the IACUC can serve as an information and resource liaison on animal welfare and research concerns.

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9.

Identify the route of injection that provides the fatest abosrbtion into the body system
- I.P
- S.C.
- I.D.
- I.V.
Correct Answer

A. I.V.

Explanation

The route of injection that provides the fastest absorption into the body system is intravenous (I.V.) injection. This method involves injecting the substance directly into a vein, allowing it to quickly enter the bloodstream and be distributed throughout the body. Compared to other routes such as intraperitoneal (I.P.), subcutaneous (S.C.), and intradermal (I.D.) injections, the I.V. route provides the most immediate and efficient absorption.

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2
10.

Thoracic compression is the preferred euthanasia method for birds
- True
- False
Correct Answer

A. False

Explanation

The statement "Thoracic compression is the preferred euthanasia method for birds" is false. Thoracic compression involves applying pressure to the bird's chest, which can cause pain and distress. It is not considered a humane method of euthanasia for birds. Instead, methods such as carbon dioxide inhalation or intravenous injection of euthanasia solution are recommended for a more humane and painless euthanasia process.

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11.

Direct immersion of an animal into formalin is good means of euthanasia.
- True
- False
Correct Answer

A. False

Explanation

Direct immersion of an animal into formalin is not a good means of euthanasia. Formalin is a solution of formaldehyde, which is a toxic substance. Direct immersion into formalin can cause severe pain and distress to the animal, making it an inhumane method of euthanasia. There are other more humane methods available for euthanizing animals that should be used instead.

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1
12.

The animal census is a ________
- Method of depreciation
- Method of record keeeping
- Method of indentification
- Method of animal care
Correct Answer

A. Method of record keeeping

Explanation

The animal census is a method of record keeping. This means that it is a system or process used to document and maintain information about animals. A census involves counting and collecting data about a population, in this case, animals. By conducting an animal census, information such as population size, species distribution, and other relevant data can be recorded and used for various purposes such as conservation, research, and management.

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13.

When animals touch one another and transmit disease they are said to hae had _________contact.
- Direct
- Indirect
- Active
- Passive
Correct Answer

A. Direct

Explanation

When animals touch one another and transmit disease, it is considered direct contact because the disease is directly transmitted from one animal to another through physical contact. Indirect contact would involve the transmission of the disease through an intermediate object or surface, while active and passive contacts are not specific to disease transmission through physical touch.

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14.

This species of rodent should be provided with a dust bath several times weekly
- Rats
- Chinchillas
- Hamsters
- Mice
Correct Answer

A. Chinchillas

Explanation

Chinchillas should be provided with a dust bath several times weekly because they have dense fur that doesn't allow water to penetrate easily. Dust baths help to keep their fur clean and healthy by removing excess oil and moisture.

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1
15.
What is Zoonosis ?
- A disease that can be transmitted from humans to animals or animals to humans
- A disease that cannot be transmitted from humans to animals or animals to humans
- What all zoo animals are referred to in Guide
- None of the above
Correct Answer

A. A disease that can be transmitted from humans to animals or animals to humans

Explanation

Zoonosis refers to a disease that can be transmitted from humans to animals or animals to humans. This means that the disease can be passed between different species, posing a potential risk to both humans and animals. It highlights the importance of understanding and managing diseases that have the potential to cross species boundaries.

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16.

What are the 3R’s ?
- Reduction Replacement Refinement
- Reduction Reuse Refinement
- Recycle Reuse Reduces
- Replace Refinement Reuse
Correct Answer

A. Reduction Replacement Refinement

Explanation

These principles were first described by William Russell and Rex Burch in 1959 to encourage more humane and ethical treatment of animals in scientific research.
Reduction: This involves minimizing the number of animals used in experiments without compromising scientific validity or the quality of research. Scientists should use the fewest number of animals possible to achieve their research objectives.

Replacement: This principle promotes the use of alternative methods, such as in vitro testing, computer modeling, or using lower organisms like bacteria or plants, to replace the use of animals in experiments whenever possible.

Refinement: This principle encourages researchers to modify experimental procedures and improve animal welfare to minimize any suffering or distress experienced by animals used in research. Refinements can include using better pain management techniques, improving housing conditions, and implementing more humane experimental methods.

By adopting these 3R's, researchers aim to minimize the use of animals in scientific experiments and ensure that any animals involved are treated with care, respect, and compassion.

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0
17.

All mammals have a_____ chambered heart
- Two
- Three
- Four
- Five
Correct Answer

A. Four

Explanation

The statement "All mammals have a four-chambered heart" is a well-known fact in biology. Mammals, including humans, have a four-chambered heart consisting of two atria and two ventricles. This four-chambered structure allows for efficient separation of oxygenated and deoxygenated blood, ensuring proper circulation throughout the body.

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18.

Which of the following are methods of setrilization ?
- Chemical
- Dry heat
- Moist heat
- Radiation
- All of the above
Correct Answer

A. All of the above

Explanation

All of the methods mentioned - chemical, dry heat, moist heat, and radiation - are valid methods of sterilization. Chemical sterilization involves the use of chemicals to kill microorganisms, dry heat sterilization involves the use of high temperatures in an oven or hot air, moist heat sterilization involves the use of steam under pressure, and radiation sterilization involves the use of ionizing radiation to kill microorganisms. Therefore, all of the methods listed are viable options for sterilization.

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1
19.

What does the acronym pHS stand for?
- Public Health Service
- Public Health sciences
- People for Health Service
- None above
Correct Answer

A. Public Health Service

Explanation

The acronym PHS stands for Public Health Service. This is a government agency that is responsible for protecting and promoting the health of the American people. The Public Health Service works to prevent and control diseases, improve access to healthcare, and conduct research to advance public health knowledge.

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20.

What is the definition of moribund?
- Approaching death; in a dying state
- Approaching sickness
- Having trouble giving birth
- All of above
Correct Answer

A. Approaching death; in a dying state

Explanation

The definition of moribund is "approaching death; in a dying state". This means that something or someone is near the end of their life and is in a state of decline or decay. It implies that death is imminent and that there is little hope for recovery or improvement. This definition is distinct from "approaching sickness" or "having trouble giving birth", as these phrases do not accurately capture the meaning of moribund.

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21.

What is the most common breed of rabbit used in laboratory research?
- Flemish Giant
- American Dutch
- New Zealand White
- Californian
Correct Answer

A. New Zealand White

Explanation

The most common breed of rabbit used in laboratory research is the New Zealand White.

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22.

If a rabbits hindquarters are not supported this can happen ?
- Fracture of the feet
- Fracture of the tail
- Fractures of the caudal lumbar spine
- None of the above
Correct Answer

A. Fractures of the caudal lumbar spine

Explanation

If a rabbit's hindquarters are not supported, it can lead to fractures of the caudal lumbar spine. This is because the hindquarters of a rabbit are crucial for maintaining its balance and mobility. Without proper support, the weight and stress on the spine can cause fractures in the caudal lumbar region, which refers to the lower part of the spine near the tail. Fractures in this area can be extremely painful and may result in loss of movement and function in the hind limbs.

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23.

The IACUC must conduct inspections of the animals facilities and support areas at least one every ________months
- Three
- Six
- Twelve
- Twenty-four
Correct Answer

A. Six

Explanation

The IACUC must conduct inspections of the animal facilities and support areas at least once every six months. This ensures regular monitoring and evaluation of the conditions and welfare of the animals. Conducting inspections every three months would be too frequent, while inspections every twelve or twenty-four months would not provide adequate oversight. Therefore, the correct answer is six months.

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24.

Of the following solutions, ___________are usually reserved for use on floors, tables, cages, and other surfaces to reduce the load of organisms.
- Antiseptics
- Disinfectants
- Sterilants
- Glutaraldehydes
Correct Answer

A. Disinfectants

Explanation

Disinfectants are usually reserved for use on floors, tables, cages, and other surfaces to reduce the load of organisms. Disinfectants are chemical agents that are used to kill or inactivate microorganisms on surfaces, thereby reducing the risk of infection. They are often used in settings such as hospitals, laboratories, and homes to maintain cleanliness and prevent the spread of harmful bacteria, viruses, and fungi. Antiseptics, on the other hand, are used on living tissues to prevent infection, sterilants are used to completely eliminate all forms of life, and glutaraldehydes are a type of sterilant commonly used in medical and laboratory settings.

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1
25.

Tied dairy cattle should have daily exercise in a yard
- True
- False
Correct Answer

A. True

Explanation

Tied dairy cattle should have daily exercise in a yard. This means that it is necessary for dairy cattle that are tied up to be given daily exercise in a yard. This statement is true.

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26.

Some of the extra requirments of immunocompromised animals are _________
- Micro-isolator housing
- Acidified water
- Sterilized housing
- All the above
Correct Answer

A. All the above

Explanation

Immunocompromised animals have weakened immune systems, making them more susceptible to infections and diseases. Therefore, they require extra precautions and specialized care. Micro-isolator housing is necessary to provide a sterile environment and prevent the entry of pathogens. Acidified water helps maintain a proper pH balance in the animals' bodies, reducing the risk of bacterial growth. Sterilized housing ensures that the animals are kept in a clean and germ-free environment. Therefore, all of the mentioned requirements (micro-isolator housing, acidified water, sterilized housing) are necessary for the well-being and health of immunocompromised animals.

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1
27.

Helicobacter spp. are motile bacteria that inhabit _______in variety of species including mice, rats, hamsters, cats, dogs, humans, and other animals.
- Gastrointestinal tract from the stomach to the colon
- Heart and lungs
- Liver
- None of the above
Correct Answer

A. Gastrointestinal tract from the stomach to the colon

Explanation

Helicobacter spp. are motile bacteria that inhabit the gastrointestinal tract from the stomach to the colon in a variety of species including mice, rats, hamsters, cats, dogs, humans, and other animals.

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28.

Unlike mice that will mate with many females gerbils are this and if they lose thier mate they generally will not accept another.
- Monogamous
- Polygamous
- Inbred
- None of the above
Correct Answer

A. Monogamous

Explanation

Gerbils are monogamous because they typically mate with only one partner and do not accept another mate if they lose their current one. This behavior is different from mice, which are polygamous and will mate with multiple females. The term "inbred" does not apply to the mating behavior of gerbils, so it is not the correct answer. Therefore, the correct answer is monogamous.

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29.

The primary ganting agency through which the untied states conducts and supports biomedical research is the
- NSF
- NIH
- USDA
- NIA
Correct Answer

A. NIH

Explanation

The primary funding agency through which the United States conducts and supports biomedical research is the National Institutes of Health (NIH). The NIH is a part of the U.S. Department of Health and Human Services and is responsible for funding and conducting research aimed at improving public health and reducing the burden of disease. The NIH provides financial support for various research projects, including basic, clinical, and translational research, as well as training and career development programs for researchers. It is composed of 27 institutes and centers, each focused on specific areas of health and disease, such as cancer, heart disease, neurological disorders, and infectious diseases. By funding cutting-edge biomedical research, the NIH plays a vital role in advancing our understanding of human health and developing new treatments and interventions for a wide range of medical conditions.

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30.

The gauge of the needle refers to the ________
- Length
- Diameter
- Circumferences
- Route of injection
Correct Answer

A. Diameter

Explanation

The gauge of the needle refers to its diameter. The gauge is a standardized measurement that indicates the size of the needle's opening. A smaller gauge number corresponds to a larger needle diameter, while a larger gauge number corresponds to a smaller needle diameter. The gauge of the needle is an important factor to consider when choosing the appropriate needle for a specific medical procedure or injection.

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31.

Platelets are essential for _______
- Immune response
- Clotting blood
- Fighting infection
- Transporting oxygen
Correct Answer

A. Clotting blood

Explanation

Platelets are essential for clotting blood because they play a crucial role in the formation of blood clots. When a blood vessel is damaged, platelets are activated and aggregate at the site of injury to form a clot, which helps to stop bleeding. Platelets release various clotting factors that initiate a cascade of reactions leading to the formation of fibrin, a protein that forms a mesh-like structure to reinforce the clot. Without platelets, the body would have difficulty in controlling bleeding, leading to excessive blood loss and potential life-threatening situations.

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32.

Sexual reproduction is conrolled by __________.
- Hormones
- Chemicals in the body
- Pituitary gland and gonads
- All of the above
Correct Answer

A. All of the above

Explanation

Sexual reproduction is a complex process that involves the coordination of various hormones and chemicals in the body. These hormones, such as estrogen and testosterone, play a crucial role in regulating the development and functioning of the reproductive organs. The pituitary gland, often referred to as the "master gland," releases hormones that stimulate the gonads (ovaries in females and testes in males) to produce sex hormones. Therefore, all of the options mentioned - hormones, chemicals in the body, pituitary gland, and gonads - are correct as they are all involved in controlling sexual reproduction.

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33.

Dystocia is a condition which may be encountered ___________
- In any species during parturition
- If rabbits are not provided kindling (nest builiding) material
- When laboratory animals are vitamin B6 deficient
- And for which no medical/ surgical treament is available
Correct Answer

A. In any species during parturition

Explanation

Dystocia is a condition that refers to difficult or prolonged labor during childbirth. It can occur in any species during parturition, which is the process of giving birth. This means that dystocia can be encountered in various animals, including humans, dogs, cats, horses, etc., when they are going through the process of giving birth. The other options provided in the question (lack of kindling material in rabbits, vitamin B6 deficiency in laboratory animals, and lack of medical/surgical treatment) do not accurately describe the general occurrence of dystocia in all species during parturition.

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34.

The best place to take blood collection in a rabbit is ?
- Ear veins
- Front foot
- Jugular vein
- Eyes
Correct Answer

A. Ear veins

Explanation

Rabbits have prominent veins in their ears, making it the best place to collect blood. The ear veins are easily accessible and can be safely punctured to collect blood samples without causing much discomfort to the rabbit. Collecting blood from the front foot or jugular vein can be more challenging and may cause more stress to the rabbit. The eyes are not a suitable place for blood collection in rabbits.

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35.

Per diem cost are the expense required to maintain one animal for _____________
- One week
- One month
- One day
- As long as the animal is maintained in the facility
Correct Answer

A. One day

Explanation

Per diem costs refer to the daily expenses required to maintain one animal. This means that the cost is calculated on a daily basis, regardless of the duration of time the animal is maintained in the facility. Therefore, the correct answer is "one day."

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36.

Samples of all tissues collected during a necropsy are prserved for histopathology by placing them in_____________
- Sterile water
- Buffered saline
- 10% buffered formalin
- Plastic bags; freezing sample
Correct Answer

A. 10% buffered formalin

Explanation

During a necropsy, tissues are collected for histopathology, which involves examining the tissue under a microscope to study any abnormalities or diseases. To preserve the tissues and prevent decomposition, they are placed in a solution called 10% buffered formalin. This solution contains formaldehyde, which acts as a fixative to prevent the degradation of cellular structures. It also helps to maintain the tissue's original structure and allows for better visualization and analysis during histopathological examination.

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37.

Painful Procedures can be performed on unanesthetized animals as long as they have been paralyzed by chemical agents
- True
- False
Correct Answer

A. False

Explanation

The statement is false because while paralysis may temporarily prevent an animal from showing physical signs of pain, it does not eliminate the actual experience of pain. Anesthetizing animals is necessary to ensure that they do not feel pain during procedures.

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38.

What is the only acceptable methods of euthanasia listed for nonhuman primates?
- Barbiturates
- Carbon dioxide
- MS222
- Ammonia
Correct Answer

A. Barbiturates

Explanation

Barbiturates are the only acceptable method of euthanasia listed for nonhuman primates. Barbiturates are commonly used in euthanasia as they induce a painless and peaceful death. They work by depressing the central nervous system, causing loss of consciousness and eventually respiratory arrest. Other methods such as carbon dioxide, MS222, and ammonia are not recommended for euthanizing nonhuman primates as they may cause unnecessary pain and distress.

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39.

Tricaine methane sulfonate (TMS, MS 222) is used to euthanasia for
- Fish and amphibians
- Dogs and cats
- Mice and rats
- Nonhuman primates
Correct Answer

A. Fish and amphibians

Explanation

Tricaine methane sulfonate (TMS, MS 222) is commonly used as an anesthetic agent for fish and amphibians. It is used to induce a state of unconsciousness and ultimately euthanize these animals in a humane manner. This method is preferred for aquatic species as it allows for easy administration and is effective in minimizing pain and distress during euthanasia. However, it is not commonly used for euthanasia in dogs, cats, mice, rats, or nonhuman primates.

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0
40.

The most desirable site for an IM injection is _________
- The hind limb
- A large muscle mass
- The fore limbs
- The back muscles
Correct Answer

A. A large muscle mass

Explanation

The most desirable site for an IM injection is a large muscle mass because it allows for better absorption and distribution of the medication. A large muscle mass has a greater blood supply, which helps in the efficient delivery of the medication to the bloodstream. It also reduces the risk of damage to surrounding structures and nerves. Additionally, injecting into a large muscle mass ensures that the medication is not injected into a joint or a blood vessel, which could cause complications.

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41.

When disease transmitted through the air (airbone or aerosol transmission) the animals is said to have had______________ contact with the infected source.
- Direct
- Indirect
- Active
- Passive
Correct Answer

A. Indirect

Explanation

When a disease is transmitted through the air, the animal is said to have had indirect contact with the infected source. This means that the disease is not transmitted through direct physical contact with the infected source, but rather through the air that has been contaminated with the infectious agents. This can occur through respiratory droplets or through aerosols that contain the pathogens.

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42.

Identify the zoonotic disease most accociated with cats.
- Salmonellosis
- Roundworm
- Toxoplasmosis
- Tuberculosis
Correct Answer

A. Toxoplasmosis

Explanation

Toxoplasmosis is the zoonotic disease most associated with cats. It is caused by the parasite Toxoplasma gondii, which can be found in the feces of infected cats. Humans can become infected by accidentally ingesting the parasite through contaminated food, water, or soil. Pregnant women and individuals with weakened immune systems are particularly at risk. While most people with toxoplasmosis experience mild flu-like symptoms or no symptoms at all, it can cause severe complications in certain cases. Therefore, it is important to practice good hygiene and take precautions when handling cat litter or interacting with cats to prevent the transmission of toxoplasmosis.

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43.

A cage card is considered raw data when you measure the animal’s body weight and record its weight on the card.
- True
- False
Correct Answer

A. True

Explanation

When you measure the animal's body weight and record it on the cage card, you are collecting objective information directly from the animal. This data is considered raw because it has not been processed or analyzed in any way. It is a factual observation that can be used for further analysis or comparison. Therefore, the statement "A cage card is considered raw data when you measure the animal's body weight and record its weight on the card" is true.

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44.

If animals are to be euthanized at the end of the study, the method of euthanasia must be in accordance with the guidlines (Panel on Euthanasia set up by the___________.
- USDA
- NIH
- AVMA
- PHS
Correct Answer

A. AVMA

Explanation

The correct answer is AVMA (American Veterinary Medical Association). The AVMA is an organization that provides guidelines and standards for the humane euthanasia of animals. They have a panel specifically dedicated to euthanasia and provide recommendations on the appropriate methods to be used.

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45.

A condition in rodents caused by high temperaturs and low relative humidity is __________
- LD50
- Boretella
- Wet tail
- Ring tail
Correct Answer

A. Ring tail

Explanation

Ring tail is a condition in rodents that is caused by high temperatures and low relative humidity. This condition affects the tail of the rodent, causing it to become dry, brittle, and develop a ring-like appearance. This can lead to discomfort and potential health issues for the rodent.

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46.

When performing the initial scrub of the surgical area ___________is the only method which is acceptable
- A linear scrub back and forth across the site
- Working outward in larger circles from the center
- Working inward from the periphery of the surical site
- Side to side swipes with the scrub solution
Correct Answer

A. Working outward in larger circles from the center
47.

For death to be painless and distress—free, _____ should precede loss of motor activity (muscle movement).
- Loss of consciousness
- Sleeping
- Brian dead
- All of the above
Correct Answer

A. Loss of consciousness

Explanation

Loss of consciousness is the correct answer because when a person loses consciousness, they are no longer aware of their surroundings or experiencing any pain or distress. Loss of consciousness precedes the loss of motor activity, which means that before the person's muscles stop moving, they first lose consciousness, ensuring that the process of dying is painless and distress-free.

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48.

Which part of the mouse model BALB/c StCrl p GF (F83) is the strain symbol?
- StCrl
- GF
- BALB
- (F83)
Correct Answer

A. BALB

Explanation

The strain symbol in the mouse model BALB/c StCrl p GF (F83) is BALB.

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1
49.

Oxygen and carbon dioxide are exchanged between the blood and the air in what anatomical structure of the lungs ?
- Bronchi
- Trachea
- Alveoli
- Bronchiole
Correct Answer

A. Alveoli

Explanation

Oxygen and carbon dioxide are exchanged between the blood and the air in the alveoli of the lungs. The alveoli are small air sacs located at the end of the bronchioles. They have thin walls and a large surface area, allowing for efficient gas exchange. Oxygen from the air diffuses into the bloodstream, while carbon dioxide, a waste product, diffuses out of the bloodstream into the alveoli to be exhaled. The bronchi, trachea, and bronchioles are all part of the respiratory system, but the actual exchange of gases occurs in the alveoli.

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1

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Laboratory Animal Technican Exam (Lat)

Mice that have had DNA from a different animal inserted into thier genes are termed______

Quiz Preview

Which of the following will prevent cross-contamination within a facility ?

What is the term used to describes the act of inducing humane death in an animal?

SOPs must be in place for the housing, feeding, handling, and care of animals in GLP studies.

What does GLP stand for?

In the case of animals traumatized due to fighting animal care techinicians can__________without the knowledge and/or supervision of the facility veterinarian,

What is a Abscesses ?

The IACUC ___________

Identify the route of injection that provides the fatest abosrbtion into the body system

Thoracic compression is the preferred euthanasia method for birds

Direct immersion of an animal into formalin is good means of euthanasia.

The animal census is a ________

When animals touch one another and transmit disease they are said to hae had _________contact.

This species of rodent should be provided with a dust bath several times weekly

What is Zoonosis ?

What are the 3R’s ?

All mammals have a_____ chambered heart

Which of the following are methods of setrilization ?

What does the acronym pHS stand for?

What is the definition of moribund?

What is the most common breed of rabbit used in laboratory research?

If a rabbits hindquarters are not supported this can happen ?

The IACUC must conduct inspections of the animals facilities and support areas at least one every ________months

Of the following solutions, ___________are usually reserved for use on floors, tables, cages, and other surfaces to reduce the load of organisms.

Tied dairy cattle should have daily exercise in a yard

Some of the extra requirments of immunocompromised animals are _________

Helicobacter spp. are motile bacteria that inhabit _______in variety of species including mice, rats, hamsters, cats, dogs, humans, and other animals.

Unlike mice that will mate with many females gerbils are this and if they lose thier mate they generally will not accept another.

The primary ganting agency through which the untied states conducts and supports biomedical research is the

The gauge of the needle refers to the ________

Platelets are essential for _______

Sexual reproduction is conrolled by __________.

Dystocia is a condition which may be encountered ___________

The best place to take blood collection in a rabbit is ?

Per diem cost are the expense required to maintain one animal for _____________

Samples of all tissues collected during a necropsy are prserved for histopathology by placing them in_____________

Painful Procedures can be performed on unanesthetized animals as long as they have been paralyzed by chemical agents

What is the only acceptable methods of euthanasia listed for nonhuman primates?

Tricaine methane sulfonate (TMS, MS 222) is used to euthanasia for

The most desirable site for an IM injection is _________

When disease transmitted through the air (airbone or aerosol transmission) the animals is said to have had______________ contact with the infected source.

Identify the zoonotic disease most accociated with cats.

A cage card is considered raw data when you measure the animal’s body weight and record its weight on the card.

If animals are to be euthanized at the end of the study, the method of euthanasia must be in accordance with the guidlines (Panel on Euthanasia set up by the___________.

A condition in rodents caused by high temperaturs and low relative humidity is __________

When performing the initial scrub of the surgical area ___________is the only method which is acceptable

For death to be painless and distress—free, _____ should precede loss of motor activity (muscle movement).

Which part of the mouse model BALB/c StCrl p GF (F83) is the strain symbol?

Oxygen and carbon dioxide are exchanged between the blood and the air in what anatomical structure of the lungs ?