I Was Given 1 Mg. Of Dexamethalone And Directed To

I was given 1 mg. of Dexamethalone and directed to take it between 10 and 11pm. Then had a lab take a blood sample as directed before 9am the next morning. I have the results from the lab: ACTH,plasma>5; Cortisol 0.9; TSH 2.99; Metanephrine <25; Normetanephrine 97; Total Metanephrine 97. Being treated for hypertension and hypokalemia. I won't be seeing the doctor who ordered the test due to a change of insurance, but I am interested in knowing what these lab results indicate. Can you lease assist me. Thank you.