Protein in urine

Jessica • Married sept 12 2015 ttc for #1 since june 2014 BFP July 2016 due March 23rd 2017
Im 36 weeks. Im being induced at 38 weeks due to high blood pressure and 4 weeks ago i had 256 mg of protein in my urine when i did my 24 urine test. So my question is what happens when you hit 300? I keep being told that we dont want that number to hit 300.