The compound annual growth rate, or CAGR for short, measures the return on an investment over a certain period of time. Below is an overview of how to calculate it by hand, and in Excel. Check out our full list of FAQs on calculating key financial measures in Microsoft Excel. CAGR Defined.
A positive Lachman test or pivot test is strong evidence of an existing anterior cruciate ligament (ACL) tear, and a negative Lachman test is fairly good evidence against that injury. Although widely used, the anterior drawer is the least helpful maneuver for diagnosing an ACL tear.
VDRL is a blood test that is used to determine whether or not you have an active syphilis infection. Although a positive VDRL test usually means that you have syphilis, that's not always the case. VDRL looks for antibodies to a non-syphilis specific protein called cardiolipin. Unfortunately, that means there can be false positive test results. False positives occur in 1 to 2 percent of the population.