Will a blood test taken monthly as required for prescribing Acutane also show if birth control is being used?

Doubtful,but I really don't know for sure.

The blood results are for a specific enzyme level in the liver(GHT I think)Not any other medications, especially if they don't effect the liver functions.

Maybe a medical nurse(I know a great adviser,J-9) who might shed some better light from a medical viewpoint.

KBC