My Husband Has Been Very Weak, Exhausted And Lethargic. He

My husband has been very weak, exhausted and lethargic. He had fasting blood work done yesterday. The only abnormality was glucose of 380, which he was told about late this afternoon. He has RA and has been switched from Enbrel to Actemera SQ weekly, for about 6 weeks now. He hasn't had a Diabetes diagnosis. He has also been on Prednisone10 mg daily. His PCP plans to see him on Monday am. Should he do anything before Monday about his blood sugar? Could the Actemera be causing hyperglycemia?