Hello Welcome to HCM, thanks for posting your query.
I read your question completely and I am of the opinion that,you need not worry.
Reports of Creat 1.5 is slightly on a higher side but that should not worry you.
His age is 70 plus, so there is a good chance that he may be having
prostate related
BPH. It's basically a
hyperplasia of prostate and due to which his creat may be little on a higher side.
If possible get a Abdominal scan done to see renal status. Also to look for prostate size and architecture.
And, I am very happy with his sugar controls.
Age 72 and fbs 85 is excellent. I congratulate you on that.
So to summarize, do not worry. He's healthy and hopefully happy.
His all tests are normal. If possible get a scan done as I've mentioned. Or else, we can still wait.
Apart from this, any other queries you can always get back to me.
Take care..