Yes and make it zone 3, 4 times a week if you're doing steady state. Or do HIIT, 60 seconds on 60 seconds slow, for 12 total minutes, three times a week. Cardio will cure this but you have to actually challenge the cardiovascular system to make a change, same as lifting a 5lb weight won't get...
My BUN, creatinine, and egfr are always high, but it's because we work out hard. In fact my creatinine is higher than yours even off cycle. But I always add in a Cystatin C test and it's always dead middle of the range, pretty much perfect. They'll also calculate a more accurate egfr from that...
Did you get cystatin-c test to confirm that or are you just going off creatinine and egfr? Be sure you can have those elevated while your kidneys are just fine. Cystatin C is much more accurate when diagnosing kidney damage.
By coming on here after he's getting roasted for his lazy posting and telling everyone "hey hey guys, that's not how we do it here" and then saying the mod team vetted them, implying that we should all trust them. I've been around these forums for years, this Odin source is one of the worst...