DH Theory

  1. how is tuberculosis transmitted?
    • inhalation
    • aerosols
    • ingestion
    • direct inoculation
  2. why doesn't standard precautions protect from tuberculosis?
    the droplet nuclei are small enough to pass through masks and the remain suspended in the air for long periods of time
  3. what disease does tuberculosis usually define?
  4. what kind of measures are to be taken when a patient has tuberculosis
    airborne infection isolation
  5. what are the factors affecting transmission of tuberculosis?
    • degree to which the infected person produces infectious droplets
    • amount and duration of exposure
    • susceptibility of recipient
  6. when is the maximum communicability of tuberculosis?
    before being diagnosed, person may have severe cough and other respiratory symptoms
  7. what are the predisposing factors for tuberculosis
    • debilitatin/immunosuppressive condition
    • systemic conditions
    • specialized prescriptions
  8. what are the predisposing systemic conditions for tuberculosis?
    • diabetes
    • congenital heart disease
    • chronic lung disease
    • alcoholism
  9. how long is the incubation period of tuberculosis?
    may be as long as 10 weeks
  10. what are some early symptoms of tuberculosis
    • weight loss
    • cough
    • fever
    • loss of appetite
    • tire easy
  11. what are later symptoms of tuberculosis
    • temperature elevation in the afternoon
    • persistent cough
    • night sweats
    • weakness
  12. how is tuberculosis diagnosed?
    • chest xray
    • tb test
  13. can tuberculosis be spread while latent?
    no it must be active to transmit
  14. how can tuberculosis be eliminated
    antituberculosis drugs
  15. what are multidrug-resistant TB and extensively drug resistant (XDR) TB?
    • multidrug resistant TB-combinations of drugs taken daily or several times a week for six months
    • extensively drug resistant TB-more severe resistance, built up resistance to multidrug technique. usually immunosuppressed patients
  16. what are the CDC recommendations for clinical management of tuberculosis?
    • periodic risk assessment
    • medical history checked
    • referral to physician
    • deferral of treatment until under control
    • urgent care must go to hospital
    • DHCP can be sent to be tested if symptoms apply
    • separate reception area for pt with TB
  17. tuberculosis is primarily a lesion of the lungs but any organ or tissue may be involved, during the extra and intraoral exams what organs or tissues would you be looking at?
    • lymph nodes-lympadenopathy (inflammation)
    • oral lesions-ulcers on hard or soft palate and tongue (rare)
  18. what drugs are used in combination to treat TB?
    isoniazid, rifampin, pyrazinamide and ethambutol
  19. other than the drugs used in a combination what other way can a patient control the condition
  20. how long after beginning therapy does the bacilli decrease?
    a few weeks
Card Set
DH Theory