Blood pressure was measured indirectly in 203 cats using an oscillometric t
echnique in conjunction with a tail cuff, Systolic blood pressure was found
to be log normally distributed across the population, while diastolic pres
sure was log log normally distributed. Blood pressure was found to rise wit
h age (systolic, diastolic, mean arterial and pulse pressure were significa
ntly higher in animals aged 11 years or over than in animals aged under 11
years) but this rise did not parallel an increase in plasma urea or creatin
ine, Cats with clinical renal disease did however have higher blood pressur
es than normal cats, as did cats with ocular change consistent with hyperte
nsive retinopathy.