Beside its function in the coagulation system fibrinogen is known to i
nfluence hemorheological parameters. We therefore examined hematocrit,
red cell aggregation, plasma and blood viscosity and calculated their
correlation with fibrinogen by means of spearman's coefficients and a
factor analysis. Regarding the data, fibrinogen showed a marked influ
ence on red cell aggregation, plasma viscosity and blood viscosity at
low shear rates.