LAT Laboratory Animal Technician questions with
accurate answers
... Ans✓✓✓ •Disrupts microorganisms protein structure •Ionizing
radiation can be lethal to humans •Gamma rays used on instruments and
supplies. •Irradiated diets are nutritionally supplemented. •Non-ionizing
radiation less penetrability. •Irradiated items are not radioactive.
... Ans✓✓✓ •Table 9.2 - active contact zoonoses
... Ans✓✓✓ > risk of infection if organisms are resistant +/or highly
virulent; > risk if the animals are particularly susceptible (e.g.
immunocompromised).
... Ans✓✓✓ Antigen-specific antibodies can be identified in diagnostic
tests.
... Ans✓✓✓ Controlled exposure to antigens is the principle behind
vaccination against bacterial, viral and allergic diseases.
... Ans✓✓✓ Diagnostic procedures are performed at scheduled
intervals.
... Ans✓✓✓ Enteritis can be caused by bacteria, viruses, endoparasites,
spoiled food, or contaminated water; Salmonella, canine parvovirus,
feline panleukopenia, MHV, roundworms, tapeworms, hookworms, and
,coccidian; Spoiled food and contaminated water from the direct action
of bacteria, mold, fungi or their chemical toxins.
... Ans✓✓✓ Hamsters, for example, show no signs of the viral disease
lymphocytic choriomeningitis (LCM) when they carry the disease.
People who handle hamsters infected with this virus can become ill with
the disease. Mice exposed to such hamsters frequently develop serious
clinical disease
... Ans✓✓✓ Imported primates and other wild animals, often contain
exotic disease organisms. •Be on alert for outbreaks and zoonotic health
problems. •Cleanliness and sanitation are still backbone of disease
prevention and control.
... Ans✓✓✓ Indirectly = airborne or aerosol transmission
... Ans✓✓✓ Microscopic lesions can be seen under the microscope.
... Ans✓✓✓ Mortality refers to the number of animals that die from a
disease.
... Ans✓✓✓ Sick animals that seem near death are said to be moribund.
... Ans✓✓✓ Vertical transmission = 1 generation to next = mother to
offspring
,"Modified SPF" Ans✓✓✓ a barrier with less stringent procedures;
animals purchased only from SPF vendors
Abduction Ans✓✓✓ Movement of bone away from midline
Abscesses Ans✓✓✓ Swellings filled with purulent material (pus) are a
mixture of dead bacteria, liquefied tissue, and white blood cells. Most
common just under skin, at site of puncture wounds. Bacteria are
deposited under skin and the skin closes over them. White blood cells to
fight the infection. White blood cells release substances that digest and
liquefy some of the tissue, the bacteria, and themselves.
Activity Cages Ans✓✓✓ rodent - an attached wheel-shaped section;
nonhuman primates - bars, ropes, swings, and sometimes toys; dogs and
other larger animals - runs
Acute Ans✓✓✓ rapid onset and brief duration
Adduction Ans✓✓✓ Movement toward the midline
After antigen exposure, immune system produces ______ and _______
against specific foreign substance that initially _______ their production.
Ans✓✓✓ After antigen exposure, immune system produces
lymphocytes and antibodies against specific foreign substance that
initially stimulated their production. Acquired (developed), active
immunity to that substance
, Alleles Ans✓✓✓ different forms of the same gene at a given locus;
Within a species, there may be dozens of alleles for a given gene. Thus,
an animal often has 2 different forms (alleles) of the same gene, 1
inherited from each parent
Allergy or Hypersensitivity Ans✓✓✓ Instead of helping, allergic
immune response causes additional tissue damage. One reaction is called
anaphylactic shock. •Some organisms are adapted to surviving in an
animal host despite the immune response. Parasites, such as intestinal
roundworms, are a classic example. •Newborns have temporary level of
passive immunity. Antibodies acquired through mothers' milk or across
the placenta. Passively transferred antibodies protect for the first few
weeks of life until old enough to produce own antibodies. •Only
infection or vaccination can stimulate a long-lasting active immune
response.
Alopecia Ans✓✓✓ Loss of hair; Reasons - excessive grooming,
metabolic dysfunction, external parasites, and nutritional disorders;
External parasites, such as fleas, mites, or lice and nutritional
deficiencies of some vitamins and minerals common cause => skin
surface is not normal. Overall thinning from hair shed in spring and fall.
Anatomically Ans✓✓✓ body system where symptoms occur
Anestrus is... Ans✓✓✓ the long period of time between breeding
seasons
accurate answers
... Ans✓✓✓ •Disrupts microorganisms protein structure •Ionizing
radiation can be lethal to humans •Gamma rays used on instruments and
supplies. •Irradiated diets are nutritionally supplemented. •Non-ionizing
radiation less penetrability. •Irradiated items are not radioactive.
... Ans✓✓✓ •Table 9.2 - active contact zoonoses
... Ans✓✓✓ > risk of infection if organisms are resistant +/or highly
virulent; > risk if the animals are particularly susceptible (e.g.
immunocompromised).
... Ans✓✓✓ Antigen-specific antibodies can be identified in diagnostic
tests.
... Ans✓✓✓ Controlled exposure to antigens is the principle behind
vaccination against bacterial, viral and allergic diseases.
... Ans✓✓✓ Diagnostic procedures are performed at scheduled
intervals.
... Ans✓✓✓ Enteritis can be caused by bacteria, viruses, endoparasites,
spoiled food, or contaminated water; Salmonella, canine parvovirus,
feline panleukopenia, MHV, roundworms, tapeworms, hookworms, and
,coccidian; Spoiled food and contaminated water from the direct action
of bacteria, mold, fungi or their chemical toxins.
... Ans✓✓✓ Hamsters, for example, show no signs of the viral disease
lymphocytic choriomeningitis (LCM) when they carry the disease.
People who handle hamsters infected with this virus can become ill with
the disease. Mice exposed to such hamsters frequently develop serious
clinical disease
... Ans✓✓✓ Imported primates and other wild animals, often contain
exotic disease organisms. •Be on alert for outbreaks and zoonotic health
problems. •Cleanliness and sanitation are still backbone of disease
prevention and control.
... Ans✓✓✓ Indirectly = airborne or aerosol transmission
... Ans✓✓✓ Microscopic lesions can be seen under the microscope.
... Ans✓✓✓ Mortality refers to the number of animals that die from a
disease.
... Ans✓✓✓ Sick animals that seem near death are said to be moribund.
... Ans✓✓✓ Vertical transmission = 1 generation to next = mother to
offspring
,"Modified SPF" Ans✓✓✓ a barrier with less stringent procedures;
animals purchased only from SPF vendors
Abduction Ans✓✓✓ Movement of bone away from midline
Abscesses Ans✓✓✓ Swellings filled with purulent material (pus) are a
mixture of dead bacteria, liquefied tissue, and white blood cells. Most
common just under skin, at site of puncture wounds. Bacteria are
deposited under skin and the skin closes over them. White blood cells to
fight the infection. White blood cells release substances that digest and
liquefy some of the tissue, the bacteria, and themselves.
Activity Cages Ans✓✓✓ rodent - an attached wheel-shaped section;
nonhuman primates - bars, ropes, swings, and sometimes toys; dogs and
other larger animals - runs
Acute Ans✓✓✓ rapid onset and brief duration
Adduction Ans✓✓✓ Movement toward the midline
After antigen exposure, immune system produces ______ and _______
against specific foreign substance that initially _______ their production.
Ans✓✓✓ After antigen exposure, immune system produces
lymphocytes and antibodies against specific foreign substance that
initially stimulated their production. Acquired (developed), active
immunity to that substance
, Alleles Ans✓✓✓ different forms of the same gene at a given locus;
Within a species, there may be dozens of alleles for a given gene. Thus,
an animal often has 2 different forms (alleles) of the same gene, 1
inherited from each parent
Allergy or Hypersensitivity Ans✓✓✓ Instead of helping, allergic
immune response causes additional tissue damage. One reaction is called
anaphylactic shock. •Some organisms are adapted to surviving in an
animal host despite the immune response. Parasites, such as intestinal
roundworms, are a classic example. •Newborns have temporary level of
passive immunity. Antibodies acquired through mothers' milk or across
the placenta. Passively transferred antibodies protect for the first few
weeks of life until old enough to produce own antibodies. •Only
infection or vaccination can stimulate a long-lasting active immune
response.
Alopecia Ans✓✓✓ Loss of hair; Reasons - excessive grooming,
metabolic dysfunction, external parasites, and nutritional disorders;
External parasites, such as fleas, mites, or lice and nutritional
deficiencies of some vitamins and minerals common cause => skin
surface is not normal. Overall thinning from hair shed in spring and fall.
Anatomically Ans✓✓✓ body system where symptoms occur
Anestrus is... Ans✓✓✓ the long period of time between breeding
seasons
