Dynamically Fetching Lookup Field Display Value

Dynamically Fetching Lookup Field Display Value

I have an audit trail form, Audit_Changes, that tracks old vs new values across different forms.

For lookup fields, the old/new value is the ID, but I also need the display value. 

What's a best practice for dynamically fetching the display value of the lookup field, assuming I can't hardcode the form name in the fetch, e.g. Status[ID == <some ID>], but I will have the form name and ID readily available.

Note, I'm using environments, if that makes a difference.