The positive result was triggered by elevated levels of testosterone in Braun's system, the sources also told "Outside the Lines." A subsequent, more comprehensive test revealed the testosterone was synthetic -- not produced by Braun's body.
Every individual naturally produces testosterone and a substance called epitestosterone, typically at a ratio of 1-to-1. In Major League Baseball, if the ratio comes in at 4-to-1 or higher during testing, a player is deemed to have tested positive. The sources did not indicate how high above the threshold Braun's sample tested.
To affirm the results and strengthen its case, MLB asked the World Anti-Doping Agency lab in Montreal, which conducts its testing, to perform a secondary test to determine whether the testosterone spike resulted from natural variations within Braun's body or from an artificial source. The test indicated the testosterone was exogenous, meaning it came from outside his body.
Huge bombshell. Not looking good for Braun. Key word being exogenous. Not just high levels of testosterone.