Normal hematologic values obtained with a Coulter counter, model S.

A survey was made of hematologic values obtained with the Coulter Counter, Model S, at American Medical Laboratories, Inc. Blood specimens from 6,887 outpatient men, women, and children were analyzed according to age and sex. Patients being seen by nephrologists, hematologists, and oncologists were excluded from the study. The mean values for white blood cell counts, mean corpuscular volume, mean corpuscular hemoglobin, and mean corpuscular hemoglobin concentration correlated well with values frequently quoted as normal. However, the mean values for hemoglobin, hematocrit, and red blood cell counts were slightly lower than the commonly accepted normal mean values. This may be a result of newer and more accurate methods of hematologic analysis.