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  • Category: Exam Questions

    Exam query on lung disease


    Have an exam question related to a lung disease? Quickly check out the right answer with help from experts.

    This is a question in an exam, for which I would like to know which is the correct answer from the options given.

    Question - Any lung disease that reduces the forced expiratory volume (FEV), but does not significantly affect the vital capacity is categorized purely as a(n) ____________.
    1. restrictive lung disorder
    2. pulmonary fibrosis
    3. chronic obstructive pulmonary
    disease
    4. obstructive lung disorder
  • #153469
    Any lung disease that reduces the forced expiratory volume ( FEV) but does not significantly affect the vital capacity is categorised purely as a chronic obstructive pulmonary disease.
    Hence no 3 is the right answer.
    It is a long term breathing problem. The main symptom is the shortness of breath and cough followed by sputum production. The disease worsens over time.

  • #153472
    FEV (Forced Expiratory Volume) is a diagnostic test to diagnose certain lung disorders. It is measured during the initial phase of forced exhaling of breath.

    On the other hand the total expiratory volume exhaled during this test is known as FVC (Forced Vital Capacity).

    Decrease in FEV is an indication of Obstructive Lung disorder (commonly known as Asthma) or Chronic Obstructive Pulmonary disorder (COPD). Any person who is suffering from either of the above will have a reduced value of FEV as compared to a healthy person. As these two disorders present similar symptoms it is a challenge for doctors to differentiate between the two.

    In persons suffering from Obstructive Lung disorder, the value of FVC remains almost same but in persons suffering from Chronic Obstructive Pulmonary disorder, the value of FVC is also reduced.

    From the above it is deduced that the correct answer to the question is Obstructive Lung disorder at serial number 4.

    Knowledge is power.


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