Thyroid function testing: overused and under-evidenced?

As a GP we often order thyroid function tests but do you ever wonder if it's worthwhile? This book looks at clinical features that are more likely to give abnormal thyroid function results. A large general practice population in the united Kingdom was analysed for a year to give this data. The hope is to improve the efficiency of your practice and have some evidence behind discussions with patients that frequent request thyroid function tests.