Here are foods to avoid when youâre having tummy troubles. 1  Dairy Products One food group that can be hard to digest is dairy â mainly because of the sugar lactose found in milk and other dairy products. 2  When lactose isnât digested properly, such as in people with lactose intolerance, gas and bloating result.
A profuse amount of clear sputum should therefore be considered as abnormal. 1  Pulmonary edema (fluid in the lungs) â clear, white or pink frothy sputum. 2  Viral respiratory tract infections â clear to white (acute). 3  Chronic bronchitis (COPD) â clear to gray.4  Asthma â white to yellow (thick).rown or black sputum is an indication of âold bloodâ and the color may be due to the breakdown of red blood cells thereby releasing hemosiderin (from hemoglobin). Certain organic and non-organic dusts may also cause a brown to black discoloration of the sputum.
In cases of infection, the sputum may be green or flecked with blood. If you are unable to produce a sample of sputum, a sample can be induced by your physician or lab technician. You may be asked to inhale sterile saline or a glycerin aerosol, which will help loosen the sputum deep in your lungs.