This quiz titled 'Exam 3 4 lectures' assesses knowledge on tuberculosis and related infections. It covers topics like the tuberculin skin test, reactivation TB, Mycobacterium tuberculosis, and treatments for various infections, ensuring a comprehensive understanding of infectious diseases relevant for medical students.
Humans have a high innate immunity to M. Tuberculosis
Less than 10 bacilli can initiate a pulmonary infection in suceptible individuals
A animal variant (m. bovis) found in cows can cause tuberculosis in humans
Spread of M. tuberculosis outside of the lung has no serious clinical manifestations
Because of the high lipid content of the cell wall, once stained M. tuberculosis cannot be easily distained
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The celar distinction of its clinical manifestations relative to those of bacterail and viral infections
The rapid growht of cultures from throat swabs or sputum
The presence of low titer cold hemagglutinins
The rise in serum antibody, detected by compliment fixation
Demonstration of urease activity
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It can be treated with erythormycin or tetracycline
It sometimes is called walking pneumonia
Predilection for an older individual
Pneumonia is usually less severe than other bacterial pneumonia
Accumulation of metabolites causes cytopathic effects
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Causes epidemic typhus
Replicates in columnar epithelial cells
Is transmitted from birds to humans by mosquitoes
Exists as two different morphologic forms
Causes ornithosis
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Causes rocky mountain spotted fever
Causes epidemic typhus
Causes endemic typhus
Is transmitted from birds to humans by mosquitos
Causes ornithosis
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C. psittaci
C. trachomatis
C. pneumonaie
R. rickettsil
R. prowazeki
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Treponema pallidium
Borrelia burgdorferi
M. Tuberculosis
M. avium
M. hominins
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Treponema pallidium
Borrelia burgdorferi
M. Tuberculosis
M. avium
M. hominins
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R. Typhi
R. rickettsil
R. prowazeki
Coxiella burnetti
C. pneumonaie
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C. trachomatis (A-C)
C. trachomatis (D-K)
C. trachomatis (L)
C. Psittaci
C. Pneumonaie
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The bacteria adheres via P1 to sialic acid residues on epithelia cells
It inhibits catalase, leading to a increase in H2O2
Itt causes alpha hemolysis on a plate of sheep blood
It is treated by tetracycline or erythromycin
Two disease forms of leprosy are recognized, tuberculoid and lepromatous
The incubation period for leprosy is usually less than 6 months
Using a skin test based on DTH to lepromin, tuberculoid cases are negative and lepromatous cases are positive
In tuberculoid leprosy, CMI is defiient, nad growth of M. leprae is unimpeded
There are a estimated 100 thousand people infected with M. leprae in asia, africa, and latin america
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Is caused by Borrelia hermsii or B. turicatae which are often present in cabins in wilderness areas
When properly treate with doxycline in its early stages will generally cure patients and prevent subsequent reinfection from tick bites
Can be serologically diagnosed by a immunoflourescent assay or by an ELISA, both of which are more reliable as the disease progresses
Can be clinically diagnosed by the appearance of erythema chronicum migrans, which generally appears in the later stages of the disease
Is sexually transmitted and can result in arthritis, neurological symptoms, and cardiac failure
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A negative PPD test can be obtained from an individual who had a primary infection 20 years ago
A positive PPD indicates that the individual has active tuberculosis
A positive PPD cannot be obtained from an individual who had a primary infection twenty years ago
A positive PPD can be obtained within 24 hours after an inidivudal is infected with M. Tuberuclosis
A negative PPD test in an individual with AIDS show the patient is not infected with M. tuberculosis
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Treponema pallidium
Mycoplasma pneumoniae
Mycoplasma hominins
Ureaplasma urealyticum
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Serolgical tests such as complement fixation
Arginine break down
Urease production
Fried Egg Colonies
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Causes endemic typhus
Replicates in endothelial cells
Is transmitted from birds to humans by mosquitoes
Exists in two different morphologic forms
Causes ornithosis
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Causes rocky mountain spotted fever
Causes epidemic typhus
Causes endemic typhus
Is transmitted from birds to humans by mosquitos
Causes Q fever
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It is primarily transmitted via ticks
It can later develop into chronic arthritis
Erythema migrans preffered treatment is doxycycline, although the definitive lab diagnosis involves an ELISA test and Western Blot analysis
It is not possible to develop a multi system infection from it
The primary treatment invovles doxycycline and amoxicilin
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It is sensitive to tetracycline and reistant to erythormycin
It inhabits the GI tract
It is a opporutnistic organism
It is broken down by urease
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C. pneumoniae
C. psittaci
C. trachomatis
R. rickettsil
R. prowazeki
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Doxycycline
Tetracycline
Chloramphnicol
Erythromycin
Oxfloaxin
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C. trachomatis is a obligate intracellular parasite
C. trachomatis is found primarily in epithelial cells
C. trachomatus is detected via specific foulurescence - conjugate antibodies
C. trachomatis is tested for using ELISA and PCR
C. trachomatis is tested for using iodine staining
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R. prowazekii
R. rickettsil
R. typhi
Coxiella burnetti
C. psittaci
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Treponema pallidium
Borrelia burgdorferi
M. Tuberculosis
M. avium
M. hominins
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