Many users in a group may obtain values close to the labeled NRR, but a substantial portion typically do not. The only way to determine a person's attenuation level is with a fit test system. Editor's ...

With home testing options increasing more than ever, you now also have the ability to test for kidney function within the comfort of your own home. Learn more about our four best picks for at-home ...

A D-dimer test checks for certain proteins in the blood to rule out certain clotting disorders. (Photo credit: Science Photo Library/Getty Images) A D-dimer test is a blood test that can be used to ...