My 72 year old husband's kidney numbers have dropped recently. Six months ago his eGFR dropped from 59 to 52. He since underwent SBRT for stage 1 lung cancer, (5 radiation treatments over a 2 week period, and the last treatment was Oct. 1). He saw his cardiologist last week, who cut his Torsemide dose in half after seeing drop in eGFR . Last week he also went for his 6 month follow up with his nephrologist, eGFR now 32, BUN 40, Creatinine 2.12 BUN/Creatinine Ratio 19. Glucose, Sodium, Potassium, etc. are all normal range. PTH is 79. Nephrologist ordered a renal ultrasound for this Friday and started him on Calcitrol every other day, and took him off of Losartan. He hasn't been eating healthy meals much since his treatments, and I wonder if he's dehydrated, Is there any hope of raising his eGFR back to a higher number? Also, would anyone recommend the renal diet prepared meals that are delivered to the home (Mom's Meals, Magic Kitchen?) Thank you!