Abstract

Arterial blood pressure measurement is one of the major hemodynamic monitoring tools used in patient assessment because adequate systemic blood pressure is required to perfuse vital organs. Blood pressure measurements provide insight into the cardiovascular status of a patient. Direct arterial blood pressure (dABP) measurement offers the benefit of beat-to-beat blood pressure monitoring. The most common arteries used for dABP monitoring in small animals are the dorsal pedal and femoral, though coccygeal or auricular can also be used. The waveform generated by the hemodynamic monitor reflects the pressure changes transmitted along the arterial tree and sensed by the transducer. Mean arterial blood pressure is generally considered superior to systolic pressure as an indicator of true driving pressure for tissue perfusion. Recognition of abnormal pressure waveforms is an essential component of dABP monitoring. Despite the potential limitations and technical difficulties associated with its use, dABP monitoring offers valuable information regarding hemodynamic status.

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