As a current intern I can tell you that you probably can't do much. The CDC says surgical masks are okay unless you're doing aerosolizing procedures such as bronch or RT doing nebs etc. Given that those are the current guidelines in the US you can't really argue a different way. It's unfortunate because it seems like the guidelines were mainly changed here BECAUSE of the PPE shortages and not because it's what's right/actually protective. Sorry friends, it's a scary time.