Systemic arterial blood pressure and pulse rate in chronically restrained rhesus monkeys

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Abstract
Systemic arterial blood pressure and pulse rate were measured once each hr. in 13 restrained, unanesthetized rhesus monkeys with implanted intra-arterial catheters. Pressures and pulse rates (average of 24 measurements/day) were generally higher during the week after surgery and introduction to the restraining chair than during subsequent wk. (2-34 wk.). Mean systemic arterial pressures, exclusive of the 1st week, varied from 117 to 136 mm Hg systolic, 71 to 84 mm Hg diastolic; pulse rate varied from 118 to 160 beats/min. Mean plasma levels of epinephrine were 0.3 [mu]g/ liter (SD [standard deviation] = 0.4), of norepinephrine, 0.9 ([mu]g/1 (SD = 0.4).

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