IMO yes. Nothing to freak out about but Id be working toward a big WC right now. With a Ca level of 510 and DKH of 6.5 your balance is extremely out of balance. Unless of course you meant 510 Ca and 6.5 Meq/L in which case your levels are pretty balanced but still higher than recommend by anyone in the hobby that I know of. I try to keep my Ca at around 430 and my DKH at near 10.