ITEC Respiratory System Practice Exam

Respiratory infections typically present with a variety of signs and symptoms primarily affecting the respiratory system. Common symptoms include cough, which is a reflex action to help clear the airways; wheezing, which is a high-pitched sound made while breathing and indicates constricted airways; and chest discomfort, which can arise due to inflammation or irritation in the lungs and surrounding tissues.

Headaches, while they may occur with some respiratory infections, are not commonly classified as a direct sign or symptom of respiratory issues specifically. Instead, headaches may arise due to associated factors such as sinus pressure or general malaise, but they are not indicative of the respiratory condition itself. Thus, headaches are less directly related to respiratory infections when compared to the other symptoms listed.