Blood pressure measurement

Blood pressure measurement determines the pressure in the blood vessels. It consists of two values, the systolic (higher) and diastolic (lower) blood pressure. Systolic blood pressure is measured when the heart contracts to pump blood out of the heart. As soon as the heart muscle relaxes and blood flows back in, the diastolic blood pressure is measured.

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Areas of application Normal values Implementation
Areas of application

Blood pressure measurement is used for the early detection and monitoring of various underlying conditions, such as heart, kidney, or hormonal disorders. In cats in particular, but also in dogs, blood pressure measurement is a quick and painless procedure for diagnosing low blood pressure (hypotension) or high blood pressure (hypertension). Blood pressure can also provide additional information about vital functions during anesthesia monitoring.

Normal values

In animals, blood pressure is similar to that in humans. Systolic blood pressure in dogs and cats is between 110-140 mmHg, while diastolic blood pressure is between 60-80 mmHg. In horses, the average systolic blood pressure is 110-120 mmHg, while the average diastolic blood pressure is 70-80 mmHg.

Implementation

A basic distinction is made between invasive and non-invasive measurement methods.

Blood pressure measurement in animals is mainly performed non-invasively and on awake patients. For this purpose, a blood pressure cuff is placed either on the forelimb or at the base of the tail. The cuff is inflated so that the blood flow is briefly interrupted. The pressure in the cuff is then slowly reduced so that the blood flows back. The manometer (pressure gauge) connected to the cuff then displays the pressure.

Although invasive blood pressure measurement is the most accurate method, it is only used in emergencies or during difficult operations due to the more difficult procedure and the associated stress and pain. In this procedure, the arterial blood pressure is measured via a catheter inserted into an artery (blood vessel coming from the heart).