what DNS parameters can you use to send specific resolution as response over the normal load balancing method

what DNS parameters can you use to send specific resolution as response over the normal load balancing method.

Since the actual HTTP traffic would not be comming to the GTM wideip , can i use any other DNS specific parameters to identify a specific condition and provide the desired dns resolution response over the normal load balancing method set under the Wideip ?

I was hoping we could look at the client ip or any other parameter to identify a client if we dont have anything in the DNS parameters to look at some parameter that can be set from the client to tell us i want to get this ip as DNS response.