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Normal Rat
Average systolic pressure = 121 mmHg
Average diastolic pressure = 84 mmHg
Average mean pressure = 103 mmHg
Heart rate = 380 beats per minute

Like humans, some rats are just born with high blood pressure. One strain of rat, called "spontaneously hypertensive rat" or SHR for short, has very high blood pressure.

Data were obtained during the night, their active period.

(The code for the applets is heavily based on the Graph Package created by Leigh Brookshaw(c)1996 used under the terms of the GNU General Public License).