true if your on your doctors computer in england it comes up when you are required to have blood tests, so a letter is sent to you, to attend a nurse at the surgery.if you are on a lot of meds for mental probs these blood tests are acential . My last came back as kidney malfunction do to to many ibrufrin tabs for arthritis,so i had to cut down.If your on bipolor meds, its crutial to have liver bloodwork tests./// soory for spelling im self taught.