DOT Certification Practice Exam

Which two groups are required to undergo simple pulmonary function testing?

1. Smokers under 35 years and those with no history of respiratory issues

2. Smokers over 35 years and those with any history of shortness of breath or wheezing

3. Non-smokers and individuals under 25 years of age

4. Smokers of any age and individuals with chronic cough

The correct answer is: Smokers over 35 years and those with any history of shortness of breath or wheezing

The answer is B because simple pulmonary function testing is primarily aimed at identifying potential respiratory issues in individuals who may be at heightened risk due to their smoking history and symptoms. Smokers over 35 years of age often face increased risks of developing chronic obstructive pulmonary disease (COPD) and other respiratory conditions. Additionally, individuals who have any history of shortness of breath or wheezing may indicate underlying respiratory dysfunction that warrants assessment. Simple pulmonary function tests help evaluate lung function and can aid in early detection of obstructive or restrictive lung disease, making it essential for those who fall under these categories. This preventative approach is critical in managing potential complications arising from respiratory issues, especially in populations at higher risk.