Final exam Clicker Questions Flashcards
A prokaryote is an organism with:
A. No chromosome
B. No Nucleus
C. No proteins
D. No nucleic acid
B. No nucleus
Which of the following is a prokaryote?
A. Bacteria
B. Fungus
C. Protozoa
D. Helminth
A. Bacteria
In general, bacteria has
A. Nucleus B. Histone C. Sterol in the cell wall D. Chromosomes E. Ribosomes F. Membrane bound organelles
D. Chromosomes
F. Ribosomes
Bacteria does not have:
A. Nucleus B. Histones C. Complex cell wall D. Peptidoglycan E. Chromosome F. Ribosomes G. Membrane bound organelle
A. Nucleus
B. Histones
G. Membrane bound organelle
Mycology is the study of
A. Mycobacterium B. Mycoplasma C. Fungus D. Protozoa E. Virus
C. Fungus
Which of the following is widely used for bacterial phylogenetic analysis?
A. Mitochondria genes
B. Lysosomal genes
C. Chromosomes
D. DNA coding for ribosomes
D. DNA coding for ribosomes
Which one of the following is a cell wall component unique to bacteria?
A. Proteoglycan
B. Peptidoglycan
C. Lipopolysaccharide
D. Mycolic acid
B. Peptidoglycan
Choose the correct statement?
A. All bacteria have an outer membrane
B. Mycobacteria have lipopolysaccharide
C. Peptidoglyan is present only in Gram postive
D. Mycobacteria are the only acid fast positive bacteria
E. Teichoic acid is unique to Gram positive bacteria
E. Teichoic acid is unique to Gram positive bacteria
Identify the mismatched pair:
A. Flagella - Motility B. Fimbriae - adherence C. Capsule - protect from phagocytosis D. Spores - survival E. Endoflagella - binary fission
E. Endoflagella - binary fission
Which of the following in not a dimorphic yeast
A. Blastomyces
B. Histoplasma
C. Coccidioides
D. Cryptococcus
D. Cryptococcus
Animal A Brucella titer = 1:256
Animal B Brucella titer = 1:16
Interpretation: Animal A has higher Ab in the serum than Animal B.
A. True
B. False
A. True
Choose the incorrect statement regarding antibody titers.
A. A positive antibody titer is always diagnostic
B. False positive response can be due to previous exposure or vaccination
C. False negative response can occur in early infection
D. False negative results can occur due to anergy in the late stages of the disease
E. Four fold increase in the convalescent titer is suggestive of an active infection
A. A positive antibody titer is always diagnostic
Which of the following conditions would investigate when a dog presented with this type of lesion? (picture of dog with dark red lesions on bridge of nose)
A. Bacterial infection B. Allergy C. Immune mediated skin conditions D. Parasitic infections E. Neoplasm F. Trauma
A. Bacterial infection B. Allergy C. Immune mediated skin conditions D. Parasitic infections E. Neoplasm F. Trauma
A common bacterial isolate from canine pyoderma
A. Staphylococcus pseudintermedius
B. Staphylococcus pseudointermedius
C. Staphylococcus intermedius
D. Staphylococcus aureus
A. Staphylococcus pseudintermedius
Greasy pig disease in pigs is caused by?
A. Erysipelothrix rhusiopathiae
B. Hemophilus parasuis
C. Staphylococcus hyicus
D. Streptococcus suis
C. Staphylococcus hyicus
Giemsa stained smear from a dog with a subcutaneous nodular lesion. Which of the bacteria will be in the top of your differential diagnosis list? (picture of a dark purple macrophage with negative contrast rod shape organisms)
A. Pseudomonas
B. Streptococcus
C. Mycobacterium
D. Bacillus
C. Mycobacterium
Missing the outer membrane of the cell wall.
Skin lesion from a horse from a swampy area from Florida; Most likely etiology:
A. Histoplasma
B. Prototheca
C. Pythium
D. Trichosporon
C. Pythium
aka swamp cancer
Select correct disease organism pair
A. Strangles: Streptococcus equi subsp. equi
B. Pigeon fever: Corynebacterium pseudotuberculosis
C. Glanders: Burkholderia mallei
D. Melioidosis: Burkholderia pseudomallei
These are all correct …. fuck me right!
Diamond skin disease pathogenesis?
Erysipelothrix rhusiopathiae
Pathognomonic skin lesions observed in swine erysipelas is a local suppurative dermatitis.
A. True
B. False
B. False
A systemic infection. Attack endothelium and why you see diamond shaped lesions.
What is the best treatment for a mature staphylococcal abscess?
Lysis! and then topical application of drug
The most like etiology in this condition in cattle? Picture cloudy eyes with pink eye.
A. Corynebacterium bovis
B. Moraxella bovis
C. Mycobacterium bovis
B. Moraxella bovis
This is a gram negative bacteria.
Giemsa stained smear from the ear of a dog; Organisms seen is : (picture of footprint shaped stained cells)
A. Malassezia
B. Candida
C. Bacillus
D. Sporothrix
A. Malassezia
In horses, guttural pouch mycoses occurs as a complication of
A. Strangles
B. Pigeon fever
C. Glanders
D. Pseudoglanders
A. Strangles
Caused my streptococcus equi subsp. equi
Which of the following bacteria is not generally involved in shipping fever pneumonia in cattle?
A. Mannheimia hemolytica
B. Pasteurella multocida
C. Histophilus somni
D. Actinobacilllus pleuropneumoniae
D. Actinobacilllus pleuropneumoniae
An obligate swine pathogen.
Which of the following statement is incorrect?
A. Foal pneumonia is caused by Rhodococcus equi
B. R. equi is facultative intracellular bacteria
C. R. equi is partially acid fast positive
D. Penicillin is the antibiotic of choice in treating R. equi
D. Penicillin is the antibiotic of choice in treating R. equi
Your choice of antibiotic is Rifampin
Most likely differential diagnosis. (Xray picture with lesions in the lungs and bones).
A. Histoplasma B. Blastomyces C. Sporothrix D. Coccidiodes E. Cryptococcus
D. Coccidiodes
Which of the following bacteria is responsible for enterotoxemia in animals?
A. Clostridium perfringens
B. Clostriudium chauvoei
C. E. coli
D. Salmonella
A. Clostridium perfringens
Prototheca is a:
A. Fungus
B. Bacteria
C. Algae
D. oomycets
C. Algae
Brucellosis is suspected in a dog with
A. Reproductive disorders in a female dog B. Acute orchitis in a male dog C. General illness and lymphadendopathy D. Discospondylitis or osteomyelitits E. All of the above
E. All of the above
Which of the following is not a histotoxic Clostridium sp.
A. C. chauvoei
B. C. novyi
C. C. septicum
D. C. difficule
D. C. difficule
Which of the following organisms does not have a predilection for nervous tissue?
A. Cryptococcus neoformans
B. Histophilus somni
C. Listeria monocytogenes
D. Salmonella
D. Salmonella
Pleocytosis is the presence:
A. Pleomorphic cells in the blood
B. Pleomorphic cells in the CSF
C. Pleomorphic cells int he nervous tissue
D. Increased number of cells in the cerebral spinal fluid
D. Increased number of cells in the cerebral spinal fluid
In regards to fungal organisms, which of the following is incorrect?
A. Eukaryotic
B. Unicellular yeast
C. Sexual and asexual reproduction
D. Contain peptidoglycan
D. Contain peptidoglycan
In regards to staining, which of the following is mismatched?
A. Gram + = thick peptidoglycan, presence of techioc acid, violet organism on stain
Gram - = thin peptidoglycan presence of LPS (lipid A endotoxin), pink organisms on stain
C. Acid fast + = pink on acid fast stain, mycolic acid, can also be gram + i.e. Mycobacterium
D. Negative staining = will be pink as in Gram (-)
D. Negative staining = will be pink as in Gram (-)
\+ = pink - = blue
Pathogenicity is the ability of a pathogen to produce a disease by overcoming the defense mechanisms of the host. Where as virulence is the degree of pathogenicity.
A. True
B. False
A. True
Which of the following is True?
A. An antibody titer of 1:100000000 is indicative of a non-infection
B. Sending a fecal sample in a glass blood tube (red top) is standard protocol.
C. A kiry Bauer disk diffusion can be used to determine MIC
D. Concentration dependent antimicrobials are usually given at high doses to achieve plasma concentration above the MIC to kill bacteria
D. Concentration dependent antimicrobials are usually given at high doses to achieve plasma concentration above the MIC to kill bacteria
Which of the following is the most common Gram + isolate from skin?
A. Staphylococcus pseudintermeidius
B. Streptococcus pseudintermedius
C. Listeria monocytogenes
D. Clostridium tetani
A. Staphylococcus pseudintermeidius
Which of the following is least likely to cause a skin lesion in a cat?
A. Mycobacterium lepraemurium
B. Yersinia pestis
C. Pasteuralla sp.
D. Listeria monocytogenes
D. Listeria monocytogenes
A Male Chihuahua in the neighborhood decides he is alpha male. His owners accidentally let him out the front door and he goes for a stroll in the neighborhood. Another much bigger dog shows up and they decide to see who is truly alpha male. Many bite wounds later, the dogs and their owners end up at the emergency clinic. No major injuries other than the bite wounds. Which of the following bacteria is least likely to cause an abscess from the bite wounds?
A. Staphylococcus pseudintermedius
B. Streptococcus spp.
C. Pseudomonas aeruginosa
D. Listeria monocytogenes
D. Listeria monocytogenes
You swabbed pyoderma on a dog and the retropharyngeal lymphonode of a horse. Unforunately you forgot to label which was which. The horse has been at a trainer for the past few weeks and is unvaccinated. The trainer also has multiple other unvaccinated horses as well. You decided to gram stain a swab. What species do you suspect this swab came from? (picture of purple cocci chains)
A. The dog
B. The horse
B. The horse
A foal 2 (months old) comes to you clinic with progressing pneuonia, gastroenteritis, and multiple limb lameness. The foal is euthanized and sample-s are taken from the lungs and mesenteric lymphonodes. What is you top differential? (picture of granulomas on the lungs and lymph nodes)
A. Streptococcus equi
B. Streptococcu equi sbsp. Equi
C. Rhodococcus equi
D. Corynebacterium pseudotuberculosis
C. Rhodococcus equi