Specific resistance of blood at body temperature II.

The specific resistance values for samples of goat, sheep, camel, monkey, baboon, cat and pig blood at 37°C are given for a range of packed-cell volumes extending from 0 to 70%. The relationship is presented in the form p=AeαH, when p is the specific resistance, A and α are constants and H is the packed-cell volume in percent. In addition, values for the change in resistivity with the addition of saline are presented to allow electrical calibration for conductivity cells when saline is used as the indicator in cardiac-output studies.