My medical for QF was fairly simple.
They checked my height and weight. Gave me an eye exam (very simple read of the chart across the room stuff). Tested my grip strength (on a grip meter), tested my reach (made sure it was long enough) and a push test where I had to push my hands against the Doctors hands as hard as I could (to test if I had the strength to open the doors on the aircraft). Then the good ole urine drug test and I was done. Very simple.
I imagine it'd be the same for Australian Airlines.
Hope I've helped a little
