Mucus moistens and cleans the nasal membranes, humidifies air, traps and clears inhaled foreign matter, and fights infection. Although it is normally swallowed unconsciously, the feeling of it accumulating in the throat or dripping from the back of your nose is called post-nasal drip.
RDW refers to the variation in size if your red blood cells. A â¦ low RDW means that the cells are all roughly the same size. A high RDW means there isa high variation in the sizes of the cells and usually means a deficiency of iron and/or B12.
RDW = Red Cell Distribution Width. It's a measure of the variation in size of the red cells counted when your blood was tested. Actually, a low RDW is not always bad.It means that your cells are actually more uniform in size.Its when the number is higher that is of more concern. When the RDW is high, the condition is known as anisocytosis.DW = Red Cell Distribution Width. It's a measure of the variation in size of the red cells counted when your blood was tested. Actually, a low RDW is not always bad.