A patient's blood was centrifuged in a capillary tube. the total height of the column of blood was 3.5 cm and the column of packed cells was 1.8 cm. analysis of the whole blood gave a hemoglobin conce

A patient's blood was centrifuged in a capillary tube. the total height of the column of blood was 3.5 cm and the column of packed cells was 1.8 cm. analysis of the whole blood gave a hemoglobin concentration of 12g%, and counting the rbcs in a hemacytometer gave a count of 4 x 106 cells per mm3.