A physiologic murmur is quite common in cats.  

This is usually the result of a dynamic right ventricular outflow tract obstruction (dRVO).  

This condition is created when the muscle of the right ventricular outflow tract squeezes and narrows the exit to the right ventricle.  

Much like a garden hose with your thumb over the end, this creates fast and turbulent blood flow, which is noted as a murmur.  

This finding has been well-studied in cats and is not linked to any advserse clinical outcomes, concerns, or problems.  

The primary worry is that it limits our accuracy of auscultation in monitoring for adult-onset disease. 

No treatments or medications are required.