H4 -h1b pending decision. Can apply H4 EAD?

My spouse is in h4 and we applied for her h1b and petition got selected. Currently h1b is in rfe response recieved status. I got my i140 approved now. Can i apply for h4 ead for my spouse? Will this have any impact on her h1b?

Applying EAD will not impact the pending H-1 petition.