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Author Question: In which of the following ways is tuberculosis generally NOT spread? a. Inhaling droplets of ... (Read 27 times)

haleyc112

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on: Jul 16, 2018
In which of the following ways is tuberculosis generally NOT spread?
 
  a. Inhaling droplets of aerosol from an infected person
  b. Drinking unpasteurized milk from cattle infected with the pathogen
  c. Laceration with contact of infected secretions during postmortem autopsy
  d. Sharing utensils and glassware with an infected person

Question 2

A respiratory therapist has just performed a pulmonary function study and notes that the results show obstructive lung disease with a decreased DLCO value. Which of the following is the best interpretation of these results?
 
  a. The patient has pulmonary fibrosis.
  b. The patient has asthma.
  c. The patient has cystic fibrosis.
  d. The patient has emphysema.
  e. The patient has chronic bronchitis.


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Jane

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Reply #1 on: Jul 16, 2018
Answer to Question 1

D
The M. tuberculosis organism is almost exclusively transmitted within aerosol droplets produced by the coughing, sneezing, or laughing of an individual with active TB. Other possible ways of contracting TB include the ingestion of unpasteurized milk from cattle infected with the TB pathogen (usually Mycobacterium bovis) and, in rare cases, direct inoculation through the skin (e.g., a laboratory accident during a postmortem examination). Sharing utensils or glassware would not lead to the spread of tuberculosis.

Answer to Question 2

D
A decreased DLCO is a hallmark clinical manifestation in emphysema because of the destruction of the alveolar pulmonary capillaries and decreased surface area for gas diffusion associated with the disease. The DLCO is usually normal in all other obstructive lung disorders. Pulmonary fibrosis is a restrictive disease, not an obstructive disease.


haleyc112

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Reply #2 on: Jul 16, 2018
Correct answers!


Jane

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Reply #3 on: Jul 16, 2018
Great! Please up vote :D


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