Final answer:
Among the given options, pneumonia is considered an additive condition because it leads to the accumulation of fluid in the lungs, requiring increased radiographic exposure for imaging. Pneumonia is caused by inflammation of the alveoli due to infections, including bacteria, viruses, and fungi, and it is a significant health issue due to its potential severity and impairment of gas exchange.
Step-by-step explanation:
The question is seeking to identify which of the listed pathologic conditions are considered additive conditions in regards to the selection of exposure factors for radiographic imaging. Additive diseases increase the required exposure because they absorb more x-rays. Within the given options, pneumonia is an additive condition, because it involves an increase in fluid in the lungs which absorbs more x-rays than normal, aerated lung tissues.
Respiratory Diseases:
Pneumonia: A condition where alveoli become inflamed and fill with fluid, often due to infections.
- Asthma: Airway inflammation triggered by various environmental factors, leading to episodic airway narrowing.
- COPD: Characterized by chronic poor airflow and breakdown of lung tissue, primarily caused by smoking.
True or False Questions:
- Pneumonia can indeed be caused by fungi, which makes the statement true.
- During exhalation, the diaphragm relaxes rather than contracts, therefore the statement is false.