Patent 7609369 was granted and assigned to Beckman Coulter on October, 2009 by the United States Patent and Trademark Office.
New diagnostic parameters or indexes for detection of absolute iron deficiency, latent iron deficiency, functional iron deficiency, or latent functional iron deficiency have been disclosed. The parameters include a RBC size factor, RSf1 defined by the formula of (MCV×MRV)1/2, or RSf2 defined by the formula of (MCV×MRV)/100, a volume-hemoglobin factor (VHf) defined by the formula of (MCV×Hgb)/100, and a volume-hemoglobin/distribution factor (VHDWf) defined by the formula of (MCV×Hgb)/(RDW×10). Further disclosed are the methods of using these parameters for detection of absolute iron deficiency, latent iron deficiency, functional iron deficiency, or latent functional iron deficiency. Also disclosed is a method of using RSf for detection of hemochromatosis.