Which symptom is NOT associated with pneumonia?

The symptom of orthopnea is typically associated with conditions such as heart failure or severe respiratory issues, where the individual has difficulty breathing while lying flat. Pneumonia, on the other hand, generally presents with symptoms that are more directly related to lung infection and inflammation.

Symptoms like a persistent cough with possible sputum production are common in pneumonia as the body attempts to clear the infection from the lungs. Chest pain that worsens with breathing can occur due to pleuritic pain, which is irritation of the pleura due to the infection process. Additionally, confusion or changes in the level of consciousness can occur in pneumonia, especially in older adults or those with severe infections, due to hypoxia or systemic illness impacting brain function.

Therefore, orthopnea stands out as not typically associated with pneumonia, making it the correct answer in this context.