The Max Pulse test assesses arterial elasticity and can indicate endothelial dysfunction if arteries are stiff.

“In my, you know, world, you know, I'm looking at tests that look at endothelial function. There's a test called Max Pulse. It looks like a pulse oximeter, it sits on your finger, it's about a 1-minute test, and it looks at the elasticity of your arteries. Healthy arteries are very elastic, they, you know, contract and expand like an accordion very quickly. If the artery is sick, it's going to be like a lead pipe, and that flow is going through very rapidly. So, if you have an abnormal Max Pulse or pulse wave velocity, you probably have some evidence of endothelial dysfunction.”