[The microviscosity of the whole blood in rats with acute hypoxia]

The EPR spectrum was optimally recorded at 20 degrees C in the blood sample. The rotatory ability of the probe, expressing the microviscosity of the blood, was shown to depend on the dose of administered solution of the sodium nitrite and to correlate with the degree of hypoxic state. An analysis of probable causes of the changes in the blood microviscosity in acute hypoxia was carried out.