only if the numbers last 3 monthes or longer..but ask ur doc about it...its IMPORTANT THAT YOU UNDERSTAND THE VALUES OF GFR.. anything less than 60 greater than 3 monthes is a positive testing...labs could be off..but 56 i never heard of the such odd # ussaly it goes down like from 60 to 50...
Looks like you're at stage 3. Was your potassium high on the last lab work you had done? Talk to your Dr to see if you need to make any diet adjustments. Also ask if a low protein diet might be beneficial for you at stage 3.
FYI if you were dehydrated at the time of your last lab work, your GFR will be lower the normal/usual.
If you don't already see nephrologist ask your primary Dr to refer you to one.
If you have hypertension, take your B/P meds religiously and you might be able to delay or avoid renal failure altogether.
as far as diet is concerned, cut down on sodium you'll do your heart and kidneys a big favor.
Take care!
•Stage 1: Kidney damage with normal or increased GFR (>90 mL/min/1.73 m2)
•Stage 2: Mild reduction in GFR (60-89 mL/min/1.73 m2)
•Stage 3: Moderate reduction in GFR (30-59 mL/min/1.73 m2)
•Stage 4: Severe reduction in GFR (15-29 mL/min/1.73 m2)
•Stage 5: Kidney failure (GFR <15 mL/min/1.73 m2 or dialysis)
Is this the first time you've noticed a low eGFR? I only ask because I recently had a eGFR of 55. I had my blood and urine re-tested a month later and my numbers were back in the normal range. What I think happened was I had a really bad kidney infection shortly before my ealier results. So, I ask only because maybe it's something other than what you're eating. Either way, I wish you luck in finding your answer.