Hi! Has anyone had to repeat the Natural Science section of the PSB-RN (or a test similar)? I have to repeat just that section, but remedial classes (which are only recommended, no required) are $200-300! I was wondering if the test is exactly the same? Also, can anyone suggest any good review sites online for free, or even cheaper refresher courses? I only need the science section! Any help is appreciated. Good luck to everyone reading, wherever you are at in the long journey of nursing!