I take several meds for bp, cholesterol, physic and insomnia. I am scheduled for a kidney ultrasound tomorrow morning. My phys said I need to do this ASAP. My Urea Nitr = 31, Potassiun 5,5, Creatinine 2.20 and calcium 10.3. All have risen from blood work two weeks ago. The concern is reduced renal function. How serious our my lab results and what should my expectations be for treatment?