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.
This event is assessed by the clinical microbiologist by examining a Gram stain of the sputum. More than 25 squamous epithelial cells at low enlargement indicates salivary contamination. When a sputum specimen is plated out, it is best to get the portion of the sample that most looks like pus onto the swab. If there is any blood in the sputum, this should also be on the swab. Microbiological sputum samples are usually used to look for infections by Moraxella catarrhalis, Mycobacterium tuberculosis, Streptococcus pneumoniae, and Haemophilus influenzae. Other pathogens can also be found.