ATI: Chapter 23 - Tuberculosis Flashcards
_______ is an infectious disease caused by Mycobacterium tuberculosis.
Tuberculosis (TB)
TB is transmitted through ________ (airborne route)
aerosolization
Once inside the lung, the body encases the TB bacillus with _______ and other cells. This can appear as a ______ on a chest x ray.
collagen
Chon tubercle
Only a small percentage of people infected with TB actually develop an _____ form of the infection.
active
The TB bacillus can lie _____ for many years before producing the disease.
dormant
TB primarily affects the lungs but can spread to any _______ in the blood.
organ
The risk of transmission decreases after ___ to _____ weeks of antituberculin therapy.
2 to 3 weeks
Client who live in ______ areas for tuberculosis should be screened on a yearly basis.
high risk
Family members of clients who have _______ should be screened.
tuberculosis
Early detection and treatment are vital. TB has a _____ onset, and the client might not be aware until the symptoms and disease are advanced.
slow
TB diagnosis should be considered of any client who has a persistent cough, chest pain, weakness, weight loss, anorexia, hemoptysis, dyspnea, fever, ______, or chills.
night sweats
Increasing the percentage of clients who ______ treatment for TB should be the goal.
complete
Individuals who have been exposed to TB but have not developed the disease can have ______.
latent TB
Latent TB means that Mycobacterium tuberculosis is in the body, but the body has been able to _____ off the infection. If not treated, it can lie dormant for several ____ and then become active as the individual becomes older or immunocompromised.
fight
years
Frequent and close contact with an ______ TB is a risk factor.
untreated
Lower _____ status and homelessness is a risk factor for TB.
socioeconomic
_______ status (HIV, chemo, kidney disease, diabetes mellitus, Crohn’s disease) is a risk factor for TB.
immunocompromised
Poorly _____, crowded environments (prisons, long-term care facilities) are risk factors for TB.
ventilated
_____ age is a risk factor for TB.
advanced
Recent travel _____ of the US to areas where TB is endemic is a risk factor.
outside
______ (especially from Mexico, Philippines, Vietnam, China, Japan, and Eastern Mediterranean countries) is a risk factor for TB.
immigration
_____ use is a risk factor for TB
substance
Health care ______ that involves performance of high risk activities (respiratory treatments, suctioning, coughing procedures) is a risk factor for TB.
occupation
Expected findings with TB include persistent _____ lasting longer than 3 weeks.
cough
Expected findings with TB include _____ sputum, possibly blood-streaked.
purulent
Expected findings with TB include fatigue and _____.
lethargy
Expected findings with TB include weight loss and ______.
anorexia
Expected findings with TB include night seats and a ______ fever in the afternoon.
low-grade fever
Older adult clients often present with ______ symptoms of the disease (altered mentation or unusual behavior, fever, anorexia, weight loss)
atypical
A client will have a positive intradermal TB test within ____ to ____ weeks of exposure to infection.
2 to 10 weeks
______ is a blood test that detects release of interferon-gamma in fresh heparanized whole blood from sensitized people.
QuantiFERON-TB Gold
QuantiFERON-TB Gold will let you now if the infection is _______ or ______.
active or latent
Results are available with _____ from a QuantiFERON-TB Gold.
24 hours
A _______ test for TB should e read in 48 to 72 hours.
Mantoux or PPD
An interdermal injection (Mantoux test) of an ____ of the tubercle bacillus is made.
extract
An induration (palapable, raised, hardened area) of ____ mm or greater in diameter indicates a positive skin test.
10
An induration of ____ mm is considered a positive test for immunocompromised clients.
5
A positive Mantoux test indicates that the client has developed an immune response to _____. It does not confirm that active disease is present. Clients who have been treated for TB can retain a ______ reaction.
TB
positive
Individuals who have latent TB can have a positive Mantoux test and can receive treatment to prevent development of an ____ form of the disease.
active
Clients who have received a Bacillus Calmette-Guerin vaccine withing the past _____ years can have a false-positive Mantoux test. These clients need a chest x ray or ________ test to evaluate the presence of active TB infection.
10
Quantiferon gold
Clients who are immunocompromised (such as those who have HIV) and older adult clients should be tested for TB. Clients starting immunnosuppressive therapy (such as tumor necrosis factor antagonists) should be tested for TB ____ to starting treatment.
prior
Reinforce the importance of returning for a reading of the injection site by a health care personnel within ____ to ____ hours with a Mantoux test.
48 to 72 hours
A _____ can be prescribed to detect active lesions in the lungs.
chest x ray
A positive _____ test suggests an active infection.
acid-fast
The diagnosis is confirmed by a positive culture for ________.
mycobacterium tuberculosis