Type 2 Blood sugar readings

They sure can.
https://www.bloodsugar101.com/complications

Have a look around the website. There is a lot of info on how to lower your blood sugar.
Are you on any medication?

I see from your previous posts that you are taking insulin.

You need advice from fellow insulin users, and I can't help with this matter. You could help others to help you if you give more details of the insulin you are using and the doses.

However, yes is the answer to your question. These are high levels, and high blood sugars will cause all sorts of medical problems.

Hi @RobertMorton, and commiserations on your high bs readings. Getting them perfect is sometimes a bit of a struggle. Are you T1 or T2?
The strategies you can employ to reduce BS levels are dependant on the kind of diabetes you have.
How long is it since you were diagnosed?
If you’re T1 you could have high bs readings because your insulin:carbohydrate ratio needs to be recalculated. Do you carb count?
If you’re T2 it may be that you’ve developed insulin resistance. Either way you may need to pay special attention to carbohydrate intake.
Do you eat carbohydrates? One thing you could do to try to reduce blood sugars if you’re T2 is to cut out, or reduce, your carbohydrate intake. Have a look at all the info on this site.
If you’re T1 and recently diagnosed then you could be nearing the end of the honeymoon period, and you could be needing more insulin. For both conditions an app that gives you carbohydrate values for foods might be useful. I’m T1 and I use Carbs and Cals but this isn’t the only one available.
I hope your nurses have some good suggestions.