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.
A: In a blood test, a decreased mean corpuscular hemoglobin, MCH, and elevated red cell distribution width, or RDW, value means a low red blood cell count, which indicates anemia, states WebMD. Normal adult MCH and RDW values are 28 to 34 picograms per cell and 11.5 to 14.5 percent respectively.