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What is SRR?

What is SRR?

SRR refers to your pet’s Sleeping Respiratory Rate. The SRR is a very useful tool in recognising the onset of or monitoring left sided congestive heart failure (CHF) in both dogs and cats.

Many of the common heart diseases lead to left sided congestive heart failure. When pressure in the top left heart chamber increases and blood backs up into vessels within the lung, it results in blood accumulating in the lungs. This fluid, referred to as pulmonary oedema, causes an increase in your pet’s respiratory rate.

How to monitor Sleeping Respiratory Rate

The good news is you can easily perform this test at home!

The measurement should be done when your pet is asleep in a normal environment (not too cold, not too hot). Repeat the measurement over 2-3 days (to get a baseline variation), and then ongoing monitoring should happen once or twice a week.

Normal SRR in dogs and cats is less than 30 breaths per minute, often in the high teens or low 20s.

If your pet has an underlying heart disease and their SRR is consistently greater than 30 breaths per minute, your pet could be developing CHF.

An elevated SRR can also be caused by high blood pressure, anaemia, pneumonia, heat stress or a fever – so if you are concerned about your pet it’s best to arrange a check up with us as soon as possible.

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