Has anyone out there taken the PTCB recently? If so, what do we need to concentrate on more: math, flow rates, law?? Are there really any questions about what year Hippocrates or anyone else invented whatever in 17 A.D??!! Myself and a co-worker took the test 15 yrs ago but did not keep it up because our company said as long as we were registered w/ the state of TX we didn't need to unless we ever planned on leaving TX, which we knew we never would!! Now they say we NEED the PTCB to apply for lead tech positions and such!! Any help is appreciated, we are both in our 40's and are very nervous.