Maybe. Interstitial pneumonia is not one disease, but a large group of inflammatory lung diseases. Some of them are infectious and respond to antibiotics, some get better spontaneously, and still others will resolve or at least improve when treated with steroid medication. There are some kinds of interstitial disease that have no good treatment. Specifics depend on the specific disease.
Usually viral. Interstitial pneumonia is an infection that affect the small area in the lung tissue proper usually more spread out than consolidated to one area. Often caused by a virus.
Particular xray. This refers to a kind of xray change seen in some kinds of pneumonia. It is not associated with a particular germ however. Although this was once thought to be the case. (interstitial pneumonias were thought to be caused more often by viruses, and other atypical germs. The xray pattern however can be caused by things besides infection such as congestive heart failure, or inflammatory lung disease.
Refers to the xray. This refers to a specific x ray pattern in which there is thickening lines that are visible in the lungs. Under the microscope there are changes in the connective tissue that is between the air sacs ( (alveoli). It may be observed in a variety of infections or inflammatory conditions of the lung and and a similar patten on chest x ray may be seen with fluid in the lung (pulmonary edema).
Yes. Interstitial pneumonia just refers to the part of the lung involved which is the tissie and space around the air sacs (alveoli). Anyone can get pneumonia that involves the interstitium.
Potentially. Interstitial pneumonia are occasionally caused by reversible causes like inflammation or viral infection. Often interstitial pneumonia can be something else like a senstivity to elements in the environment like a sensitivity to pets, molds or even medication such as amiodarone or nitrofurantoin.
Multiple tests. Imaging of the lung and in particular ct scan of the chest can often help define the kind of interstitial lung disease, in addition pulmonary function tests can quantify the amount of lung function loss. Blood tests that detect abnormal antibodies seen in inflammatory diseases associated with interstitial pneumonia can be helpful, for example tests for lupus, rheumatoid arthritis.
Similar to pneumonia. Interstitial pneumonia just refers to a specific x ray pattern of lung inflammation. It may be either related to infection or an inflammatory disease of the lung. Symptoms are similar to other lung diseases and include shortness of breath, with exertion or without) and cough (often without much sputum production), there maybe constitutional symptoms like fever, and fatigue.