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Electrocardiography (an ECG) may be performed on pets with cardiac (heart) problems or lethargy to demonstrate the electrical activity within the heart. This can help to diagnose a wide variety of cardiac diseases, arrhythmias and other medical disorders. This examination is usually performed conscious but may take a little time hence the patient is usually admitted for a whole or half a day.
Hypertension (high blood pressure) can also affect dogs and cats and can be linked to some medical conditions, e.g. kidney disease in dogs and cats, hyperthyroidism in cats. If undiagnosed and untreated hypertension can seriously affect the prognosis in these conditions. It can also in some cases cause acute blindness which once it develops is irreversible.
In humans the doctor listens to our pulse with a stethoscope, inflates a cuff around our arm to obliterate the pulse then gradually reduces the pressure in the cuff and measures the pressure at which the pulse is heard to return. In dogs and cats the peripheral pulse is too small to be heard with just a stethoscope but we can use a Doppler Ultrasound device to `listen' for the animals pulse while measuring the pressure in a cuff placed on the animals limb in the same way as the doctor does.
This test is usually performed a minimum of 3 times after the animal is admitted and an average taken of the readings. This it to get a reliable reading and reduce the effect of anxiety due to the car journey, waiting room and first crossing of the consulting room threshhold!
Some elderly cats will have primary hypertension (not linked to underlying disease) which can also cause acute blindness if not diagnosed and managed. We recommend blood pressure screening of elderly cats as part of our preventative care for geriatric pets
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