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true or false. Tuberculosis is an AIDS defining illness?
true
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what is the name of the infectious agent in tb?
mycobacterium tuberculosis
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how is tb commonly transmitted?
- inhalation
- aerosols
- standard precautions are not sufficient...gets through mask
- droplet nuclei
- ingestion
- direct inoculation
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name 4 factors that affect transmission of tb.
- degree that infected person produces infected droplets
- amount and duration of exposure
- susceptibility of recipient
- when it is diagnosed- its maximum communicability is just before it is diagnosed
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name 6 systematic conditions that may be related to lowered resistance to tb.
- diabetes
- congenitial heart disease
- chronic lung disease
- alcoholism
- substance abuse
- specialized perscriptions
- rheumatoid arthritis
- crohns disease
- AIDS
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what is the incubation period for tb?
as long as 10 weeks after exposure
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describe the early symptoms of tb
- low-grade fever
- loss of appetite
- weight loss
- fatigue
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what are later symptoms of tb?
- slight cough and eventual sputum
- higher temperature
- along with other syptoms
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name 6 things that may cause/be the reason to reactivation of tb.
- the disease remains latent, and later recurs
- incomplete treatment of primary infection
- immunosupression
- may come back after many years
- if asymptomatic, disease will not spread
- anti tb drugs can elliminate it
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How is tb treated?
- multi-resistant tb
- taken daily, several times a week, for atleast 6 months
- extensively drug resistand (XDR) TB
- used if the other won't work because the body has built a resistance to that drug
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How does the CDC recommend that we treat tb pts?
- do a periodic risk assesment
- check medical history
- refer them to a physician if we think they have tb
- send them to a hospital if they need immediate dental care
- have a separate reception area for them
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what are some signs of tb seen from intra and extra oral exams?
- lympadenopathy- inflammed and enlarged lymph nodes
- oral lesions- ulcers on harda or soft palate, or tongue
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what does chemotherapy do for a person with tb?
it can control the pts contagious condition, the bacili in the sputum, and cough are decreased
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what are some of the chemicals used in chemotherapy for tb?
- isonaizid
- rifampin
- pyrazinamide
- ethambutol
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