Which of the following is the most likely predisposing factor for the - ProProfs Discuss
Advertisement

Which of the following is the most likely predisposing factor for the development of his pulmonary disease?
A 58-year-old man has developed a non-productive cough worsening over the past 2 months. Last week he noted the appearance of blood-streaked sputum. On physical examination, there are some expiratory wheezes auscultated over the left lung. A chest radiograph reveals a 5 cm mass near the left lung hilum. A sputum cytology reveals the presence of small clusters of very hyperchromatic, pleomorphic cells with scant cytoplasm.



A. Silicosis
B. Radon gas exposure
C. Smoking
D. Asbestosis
E. Passive smoking

This question is part of block 11 pulmonary - part 1

Asked by Kayla, Last updated: Oct 22, 2020

+ Answer
Request
Question menu
Vote up Vote down

2 Answers

J. Shatner

J. Shatner

J. Shatner
J. Shatner, Content writer, Boston

Answered Jul 19, 2018

Each of these answers could, in fact, be correct. However, when looking at statistics and probabilities, smoking is likely the cause of the cancer. While lung cancer does occur in non-smokers, it is much more probable to take place in someone that has a history of smoking.

Inhalation of hazardous chemicals and particles like silica and asbestos absolutely increase the chances of cancer. Unfortunately, smoking is the leading cause of lung cancer with 90% of cases being linked to it. Similarly, passive smoking/breathing secondhand smoke is harmful but not as much so as inhaling radon gas.

upvote downvote
Reply 

John Smith

John Smith

John Smith
John Smith

Answered Sep 09, 2016

Smoking -(c) correct. smoking remains the most frequent cause of lung cancer. lung cancer does, however, occur in nonsmokers. a small cell anaplastic carcinoma, as in this patient, is virtually always seen in smokers.(a) incorrect. silicosis increases the risk for lung cancer slightly by about 2 fold.(b) incorrect. radon is probably the second leading cause of lung cancer. however, most cases of lung cancer in which exposure to radon gas has been identified also occur in smokers.(d) incorrect. however, asbestos exposure increases the risk for lung cancer in smokers even more.(e) incorrect. passive smoking could probably be right behind radon exposure as the second leading cause for lung cancer.
upvote downvote
Reply 

Advertisement
Advertisement
Search for Google images Google Image Icon
Select a recommended image
Upload from your computer Loader
Image Preview
Search for Google images Google Image Icon
Select a recommended image
Upload from your computer Loader
Image Preview
Search for Google images Google Image Icon
Select a recommended image
Upload from your computer Loader

Email Sent
We have sent an email to your address "" with instructions to reset your password.