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March 1966

The Hematocrit in Clinical Practice.

Arch Intern Med. 1966;117(3):474. doi:10.1001/archinte.1966.03870090158050

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Hematocrit is the volume occupied by packed red cells.

Serial hematocrit is based on the extent hemodilution processes occur following blood loss.

Body hematocrit, Hct0, signifies the overall average concentration of red cells in blood throughout the body.

The hematocrit plays an important role in regulating acid-base balance.

Hematocrit alters the solubility characteristics of anesthetic drugs in blood.

The only problem encountered was acidosis due to the absence of a hematocrit.

Figure 4 presents the curve for viscosity obtained for various hematocrit ratios prepared by varying the red cell/plasma ratio.

These quotations indicate the many ways in which the word hematocrit is employed in this bewildered little book. (They also provide fair examples of the authors' bewildering style.) The problem of definition almost conceals the fact that most of the book is not really about the hematocrit. In half the chapters the authors discuss functions of the erythrocyte and

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