Every Australian Olympian will undergo at least one drug test in the lead up to the Athens Games, the national anti-doping body said.

Athletes will participate in testing and education programs to ensure they don't succumb to the lure of performance enhancing drugs, Australian Sports Drug Agency (ASDA) chief executive John Mendoza said.

"With the chance of Olympic glory just around the corner some athletes may be more tempted to dope," he said.

"ASDA ... will be guarding against this risk via our drug testing and education programs."

Mr Mendoza said revelations in the US surrounding athletes using the previously undetectable banned steroid THG (tetrahydrogestrinone), highlighted that doping was an ongoing threat to sport around the world.

But he said the anti-doping community were more ready than ever to deal with the issue.

Some 1,855 Australian athletes were drug tested between October 1 and December 31 last year, with four positive results.

Australian Weightlifting Federation president Sam Coffa confirmed one weightlifter had returned a positive result.

The athlete was not part of Australia's weightlifting contingent heading to Athens, he said.

"The athlete concerned is of a third or fourth level down and nowhere near elite," he said.

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