Gas exchange

Question 6

In a clinical research study investigating pulmonary fibrosis, a disease that severely limits gas exchange in the lungs, the following epidemiological data were published:

$68%68\%$ of all individuals who develop pulmonary fibrosis have had long-term exposure to harmful environmental dusts or asbestos.
$165{,}000$ people in the population have been formally diagnosed with pulmonary fibrosis.
It is estimated that an additional $285{,}000$ people have the condition but remain undiagnosed.

Calculate the total number of people in this population who are estimated to have pulmonary fibrosis (both diagnosed and undiagnosed) and have had long-term exposure to environmental dusts or asbestos. Show your working.

[3]

Gas exchange

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Question 6

In a clinical research study investigating pulmonary fibrosis, a disease that severely limits gas exchange in the lungs, the following epidemiological data were published:

$68%68\%$ of all individuals who develop pulmonary fibrosis have had long-term exposure to harmful environmental dusts or asbestos.
$165{,}000$ people in the population have been formally diagnosed with pulmonary fibrosis.
It is estimated that an additional $285{,}000$ people have the condition but remain undiagnosed.

Calculate the total number of people in this population who are estimated to have pulmonary fibrosis (both diagnosed and undiagnosed) and have had long-term exposure to environmental dusts or asbestos. Show your working.

[3]

Gas exchange

Question 6

Gas exchange Questions

Gas exchange

Question 6

Gas exchange Questions