Which A level is best to be a paediatrician or a paediatrician nurse?

While Rihanna is right about the nurse side of things, I would have to disagree about what she says about training to be a doctor. I have spent the last year looking into different medical schools, and depending on whether you do the 5 year standard course, the 6 year foundation course, or the 4 year post-graduate course, you won't neccessarily have to study all the sciences and math. If you chose to do a 6 year foundation course, then some universities prefer for you not to study in a science, so I wouldn't neccessarily study all 4. If i were you, I would study biology or chemisty or both if possible.