Primary Tuberculosis Overview
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Questions and Answers

What characterizes primary tuberculosis?

  • TB that has become chronic
  • TB detected later in adulthood
  • TB revealed for the first time (correct)
  • TB detected only in children
  • In primary tuberculosis, where is the localization of inflammation most commonly observed?

  • Pleura
  • Peripheral lymph nodes
  • Lung tissue (correct)
  • Intrathoracic lymph nodes
  • What components make up the primary tuberculosis complex?

  • Focus in lungs and pleural effusion
  • Focus in the abdominal cavity
  • Focus in lung, specific lymphangitis and tuberculosis of regional lymph nodes (correct)
  • Only lung infiltration
  • Which site is most commonly affected by tuberculosis in peripheral lymph nodes?

    <p>Neck region</p> Signup and view all the answers

    What does the concept of exogenic superinfection refer to?

    <p>Introduction of TB bacteria from outside into a previously non-infected organism</p> Signup and view all the answers

    How is endogenic reinfection defined?

    <p>Activation of a previously hidden TB focus</p> Signup and view all the answers

    In disseminated pulmonary tuberculosis, which method of infection spread is not involved?

    <p>Lymphagenic</p> Signup and view all the answers

    In hematogenic disseminated pulmonary tuberculosis, the localization of the infection typically occurs in which vessels?

    <p>Venules</p> Signup and view all the answers

    Proliferation of survived MBT in alveolar macrophages of airways after inspiration of sputum particles corresponds to which stage of infection?

    <p>3rd stage of infection</p> Signup and view all the answers

    Which stage of infection corresponds to swallowing MBT by alveolar macrophages in a non-immunized organism?

    <p>3rd stage of infection</p> Signup and view all the answers

    The development of a nonnegative response to TST after infection represents which stage?

    <p>4th stage of infection</p> Signup and view all the answers

    Reactivation of a TB focus in lung tissue with caseous necrosis suggests which stage of infection?

    <p>4th stage of infection</p> Signup and view all the answers

    What does the expectoration of sputum contaminated by MBT and subsequent infection of another person indicate?

    <p>3rd stage of infection</p> Signup and view all the answers

    Which type of hypersensitivity is the basis of TB inflammation?

    <p>Delayed-type hypersensitivity</p> Signup and view all the answers

    In latent TB infection, which condition describes the infectious process?

    <p>Presence of MBT without clinical symptoms</p> Signup and view all the answers

    What is the epidemiologic parameter of infection in TB?

    <p>% of nonnegative response to TST excluding post-BCG allergy</p> Signup and view all the answers

    Which clinical form of TB typically presents on a Chest X-ray resembling pneumonia?

    <p>Infiltrative TB</p> Signup and view all the answers

    What clinical form of TB is characterized by the predominance of exudative inflammation in the lung?

    <p>Infiltrative TB</p> Signup and view all the answers

    Which form of TB is associated with a predominance of productive-proliferative inflammation in the lung?

    <p>Tuberculomas of lung</p> Signup and view all the answers

    Which clinical form of TB typically results from ineffective chemotherapy courses?

    <p>Infiltrative TB</p> Signup and view all the answers

    Which form of TB is characterized by the prevalence of caseous necrosis in the lung?

    <p>Caseous pneumonia</p> Signup and view all the answers

    Which clinical form of TB usually has a gradual onset?

    <p>Disseminated TB</p> Signup and view all the answers

    Which clinical form of TB is most frequently associated with an acute onset?

    <p>Infiltrative TB</p> Signup and view all the answers

    Which clinical form of TB typically shows a shadow with a definitive low border and an indefinite upper border on imaging?

    <p>Peristsissuritis</p> Signup and view all the answers

    What is the main thermo-stable component of tuberculin?

    <p>Antigen CFP10</p> Signup and view all the answers

    What does tuberculin act as in relation to M.tuberculosis?

    <p>A hapten that produces sensibilization</p> Signup and view all the answers

    After contamination with M.tuberculosis, how long does it typically take for the host body to react to the injection of Tuberculin?

    <p>After 2-3 weeks</p> Signup and view all the answers

    What type of hypersensitivity is the basis of the skin response to the injection of tuberculin?

    <p>Delayed type of hypersensitivity</p> Signup and view all the answers

    What is the most common indication for a Tuberculin Skin Test (TST)?

    <p>Detection of primary TB infection</p> Signup and view all the answers

    For active diagnosis of TB, how frequently is the TST carried out in Russia?

    <p>Every 6 months</p> Signup and view all the answers

    How much PPD-S is included in a dosage of 0.1 ml?

    <p>5 TE</p> Signup and view all the answers

    What defines polyresistance in mycobacterium tuberculosis (MBT)?

    <p>Resistance to two or more anti-tuberculosis drugs without resistance to Isoniazid &amp; Rifampicin</p> Signup and view all the answers

    What percentage of new tuberculosis cases in Russia is associated with multidrug-resistant tuberculosis (MDR)?

    <p>15-20%</p> Signup and view all the answers

    What limits the successful treatment of new tuberculosis cases during the initial phase of chemotherapy?

    <p>Slow growth of MBT on culture media</p> Signup and view all the answers

    Which method is used to detect genetic mutants of mycobacterium tuberculosis with resistance to antituberculous drugs?

    <p>PCR</p> Signup and view all the answers

    What is the definition of acquired (secondary) resistance in mycobacterium tuberculosis?

    <p>Drug resistance developed during tuberculosis treatment</p> Signup and view all the answers

    In how many weeks can resistance of mycobacterium tuberculosis develop when inadequately chosen anti-tuberculous drugs are used?

    <p>2-3 weeks</p> Signup and view all the answers

    How long does multidrug-resistant tuberculosis (MDR-TB) increase the course of antituberculous treatment?

    <p>10-12 months</p> Signup and view all the answers

    What location is favored for secondary tuberculosis as seen on a chest X-ray?

    <p>Lower lobe of the lung</p> Signup and view all the answers

    Which type of tuberculosis is more likely to present with a rapid progression of symptoms?

    <p>Disseminated TB</p> Signup and view all the answers

    Which type of TB is most associated with cachexia?

    <p>Disseminated TB</p> Signup and view all the answers

    Expectoration of more than 100 ml of sputum is typically seen in which type of TB?

    <p>Infiltrative TB</p> Signup and view all the answers

    Which of the following conditions is more likely to cause dyspnea?

    <p>Disseminated TB</p> Signup and view all the answers

    In comparison to infiltrative pneumonia, caseous pneumonia is more characterized by which condition?

    <p>Acute onset</p> Signup and view all the answers

    In the presence of caseous pneumonia, the shift of the mediastinum is associated with which phenomenon?

    <p>Apneumatosis due to purulent sputum</p> Signup and view all the answers

    The presence of two hyperinflated caverns in the left lung with a mediastinum shift suggests which type of TB?

    <p>Fibrous-cavernous TB</p> Signup and view all the answers

    Which type of dissemination is characterized by bilateral foci that are 1-2 mm in size?

    <p>Miliary TB</p> Signup and view all the answers

    Signup and view all the answers

    Study Notes

    Tuberculosis History

    • Tuberculosis (TB) is an infectious disease primarily caused by Mycobacterium tuberculosis, with a predilection for lung localization.
    • The most ancient recognition of TB likely involved cases of infiltrative TB or TB of peripheral lymph nodes.
    • Hippocrates provided an early, systemic description of TB's clinical and epidemiological features.
    • Aristotle first proposed the infectious nature of TB.
    • Avicenna contributed to the understanding of the clinical manifestations of TB.
    • Jacob Monget first described miliary tuberculosis.
    • The term "tuberculosis" was initially proposed by Girolamo Fracastorius.
    • The famous Russian surgeon Pirogov is linked to the development of surgical treatment methods for TB (and description of specific necrosis cases).
    • Koch improved the staining method for M.tuberculosis.
    • Calmette and Guerin (also known as C.G) developed a vaccine for TB prevention.

    Tuberculosis Etiology and Pathogenesis

    • Mycobacterium tuberculosis is a bacteria.
    • The primary cause of TB in humans is M. tuberculosis.
    • Mycobacterial modifications initially occur due to chemotherapy.
    • M. tuberculosis has different forms.
    • Koch bacilli can transform into L-forms or virus-like forms.
    • TB development is influenced by several factors, including genetic mutations, treatment inadequacies, and treatment interruptions.

    Tuberculosis: Diagnostic Features

    • The Ziehl-Neelsen method uses acid-fast staining properties of TB to distinguish M. tuberculosis from other bacteria.
    • The method involves multiple steps, including staining with carbol-fuchsin, acid-alcohol decolorization, counterstaining, and methylene blue.
    • Diagnostic methods of TB include sputum analysis, imaging (e.g., X-ray), and tests like TST and IGRA.

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    Test on Tuberculosis PDF

    Description

    This quiz explores the fundamentals of primary tuberculosis, including its characteristics, localization of inflammation, and the components of the primary tuberculosis complex. It also addresses concepts related to reinfection, dissemination methods, and immune responses to tuberculosis. Test your knowledge on these critical topics in tuberculosis pathology.

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