Response from Robert J. Frascino, M.D. ...Western Blot, which turned out to be negative. A reactive ELISA plus a negative Western Blot is considered to be a negative HIV test.. There are many potential causes for a falsely reactive ELISA test, including cross-reacting non-specific...
1 Asthma is an inflammation and narrowing of the airways that can cause shortness of breath, wheezing, chest tightness, and coughing. 2  Pneumonia is lung inflammation that is caused by infection. 3  Symptoms may include shortness of breath, cough, chest pain, chills, sweating, fever, muscle pain, and exhaustion.
These two factors combine to cause shortness of breath. Congestive heart failure that leads to pulmonary edema may be caused by: 1  Heart attack, or any disease of the heart that weakens or stiffens the heart muscle (cardiomyopathy)  Leaking or narrowed heart valves (mitral or aortic valves)