RMF says safek brachos lehakeil, so don't make a brachah.
what's the safek? it seems either your rav will hold its good or its not, in which case your Rav will paskin for you either to make a bracha or not, but like I said, any rav i asked told me to make a bracha, so Im not sure why its so easy to blatantly say that candles have a place in hospitals "but not with a bracha"