What happens if GFR is reduced?
If GFR is too low, metabolic wastes will not get filtered from the blood into the renal tubules. If GFR is too high, the absorptive capacity of salt and water by the renal tubules becomes overwhelmed. Autoregulation manages these changes in GFR and RBF.
What causes a reduced GFR?
As chronic kidney disease progresses, your GFR number decreases. * Your GFR number tells your doctor how much kidney function you have. As chronic kidney disease progresses, your GFR number decreases.
What happens when kidney function is reduced?
A severe decrease in kidney function can lead to a buildup of toxins and impurities in the blood. This can cause people to feel tired, weak and can make it hard to concentrate. Another complication of kidney disease is anemia, which can cause weakness and fatigue.
What are the symptoms of a low GFR?
So you may need an eGFR test if you have any of the following symptoms:
- Urinating more or less often than usual.
- Feeling tired.
- Swelling in your arms, legs, or feet.
- Muscle cramps.
- Nausea and vomiting.
- Loss of appetite.
Does a low GFR mean kidney disease?
GFR must remain low for three months for kidney disease to be diagnosed. When GFR is below 60 for more than three months, it usually means you have moderate-to-severe kidney disease. You may be referred to a nephrologist (kidney doctor) for evaluation and treatment. A GFR below 15 means kidney failure.
How can I raise my GFR?
How to Increase eGFR
- Make sure your blood pressure is in the healthy range (around 120/80) [17, 18]
- Aim for a healthy weight [18, 24]
- Eat a lot of fruits and vegetables 
- Quit or reduce smoking [18, 22, 26]
- Exercise for at least 30 minutes several times per week [27, 28, 29, 30]
Can you reverse a low GFR?
If the decrease in the estimated glomerular filtration rate (eGFR) is due to acute kidney injury with a sudden decrease in kidney function, this can commonly be reversed. If the kidney disease is due to chronic kidney disease (CKD), the recovery of eGFR is usually not possible.