TB factoids
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| lower respiratory tract is normally sterile if | directly sampled
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| Acceptable sputum spec: <__ squamous epithelial cells/low power field | 10
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| Macrophages: Activated phagocytic cells common in ____ | fungal, acid-fast & some atypical bacterial infections
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| Eosinophils: Indicative of ____ | allergic reaction or parasitic infection
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| Most common cause of bacterial pneumonia (70%) | Streptococcus pneumoniae
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| Lancet shaped gram positive cocci in pairs | Streptococcus pneumoniae
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| Culture never indicated in | chronic bronchitis
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| if you suspect atypical bacteria you should | notify the lab in advance
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| where do you grow leprosy | armidillo foot pads
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| TB infection spread person to person via ____ | respiratory droplets in air (cough)
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| Positive PPD Zone Size >= __ mm if no risk factors | 15
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| Positive PPD Zone Size >= __ mm if co-morbid risk factors;Diabetes, chronic renal failure, cancer, IVDA, congregate setting, foreign born/immigrant <5yrs from endemic area (Asia, Africa, Latin America), Mycobacteriology lab tech, gastrectomy | 10
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| Positive PPD Zone Size >= __ mm if HIV+, contact of TB+ person, organ transplant/immunosuppression, fibrotic CXR, on 15 mg prednison/day, or TNF alpha inhibitor | 5
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| substance used for control in PPD test | candida albicans antigen
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| the inability to react to skin tests because of a weakened immune system | anergy
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| more specific test for LTBI & can help exclude BCG or Mycobacterium not TB reactions. | Interferon Gamma Release Assay
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| vaccine against tuberculosis | Bacille Calmette-Guérin (BCG)
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Created by:
bwyche
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