5 users are following. Renal Failure - Went to my PDr Monday and she ran my kidney function for me in three months my GFR?My GFR dropped from 39 to 27 in just three months. Even so, the idea of not eating or drinking, even for a small amount of time, can seem daunting. So you have a long way to go yet before you start to worry. Isotope plasma clearance techniques (i.e. If your eGFR was below 60, talk to your doctor as soon as you can! I am not sure about the severity of dehydration that occurs after a 12 hour fasting … BUN/Creatinine ratio is 10. Your doctor may suggest further testing (blood, urine, or imaging tests). Immediately after my transplant the doctors paid particular attention to my creatinine levels and advised different doctors have different ways of measuring kidney function. Hence, I can reassure you that your kidney function is normal and drinking extra water did not change anything. Let hunger dictate what you eat during this period. I was hospitalized for a twisted small intestine. In clinical practice, however, samples for serum creatinine concentration and eGFR are generally used in situations where the patient’s recent dietary intake is not considered. The implication is that these equations provide similar results. Kidney glomerular filtration rate (GFR) is a test performed by a simple blood test and used to check how well your kidneys are working by estimating how much blood passes through the glomeruli, tiny filters in the kidneys that filter waste from the blood. There are no quick miracles to regaining health in my 66 years that i have found. Use of the forums is subject to our Terms of Use As stated, yes, other co existing medical conditions can have a dramatic impact on your blood work, as does your family history. old, 134 lbs., good BP, and I'm super active, walking, swimming living a normal life. Haha, no nothing like that! I knew I had CKD but did not know why before the CT scan. I am a 76 year-old male. A detailed medical history and whether or not your on any form of medications would be interesting to I would not be too concerned with your blood work, it just gives your nephrologist an indication of how your kidneys are functioning! The kidney cysts showed up on the CT scan. I'm 60 yrs. eGFR. But the big benefit of drinking the water is not just the kidney and the numbers. Rick, this is a great explanation! Upgrade to Patient Pro Medical Professional? Lipid peroxidation (TBARS) decreased and maintained stable after RD. Thanks Marj. We aim to evaluate the effects of a 12 hour nil-by-mouth fast on blood sample assessed GFR, by measuring the isotopic GFR of 12 volunteers twice: once when they have eaten and drank as normal, and once when they have gone nil-by-mouth for 12 hours preceding their test. Fasting decreased α-tocopherol and increased γ-tocopherol, no significant changes were found after RD. Recent food consumption raises the Low-Density Lipoproteins- LDL level and triggers the level of Triglycerides in the blood; and this how not fasting affects … My Nephrologist said these levels go up and down, sometimes the lab is not so accurate. In the last six months is has grown 1/4 inch in each direction. To find GFR, physicians normally obtain the number by using the equation: GFR=140-(your age). Fortunately my heart handles it will in conjunction with the kidney. For a person with one functioning kidney transplanted this is good. All other metrics are in the normal range. Without the medicine for 12 or 24 hours, it will not beat properly. Dr Fung who i follow closely does Not suggest fasting without a doctor monitoring your vitals if you have any health issues. In the MDRD study data used to generate the eGFR equations, samples were taken from predominantly fasting subjects (AS Levey, personal communication). I don't worry anymore. Male. appropriate medical assistance immediately. Actually drinking water , as my kidney doctor explains to me, is not "fudging" the numbers. I am so glad that I had the two tests, with and without fasting, so close together. So, if your GFR level is high, then consult an Ayurvedachadrya who can increase GFR levels with Ayurveda. Then the following Tuesday my primary care doctor wanted to check my Cholesterol level and for this blood test I fasted for about 13 hours. All that showed up on the test was egfr 59 and low ferritin. She had me drinking 70 ounces or more of water every day for a month before this test. With one kidney it needs all the help it can get to function as best it can. RESEARCH DESIGN AND METHODS —In 193 diabetic patients, we searched for an association between A1C and isotopically measured GFR (51Cr-EDTA) and their predictions by the Cockcroft and Gault formula … 2 But you may want to avoid IF during pregnancy. For instance, Dialysis patients cannot fast under any conditions due to the fact that they require Intravenous (IV) fluid intake during their treatments. Therefore, patients presenting for isotope GFR assessment may be suffering from varying degrees of dehydration due to their fast. When I work out, I always sweat a lot… The American Diabetes Association recommends estimation of glomerular filtration rate (GFR) (1) by either the Cockcroft-Gault (2) or the Modification of Diet in Renal Disease (MDRD) (3) equation in all patients with diabetes. To increase your GFR, start by eating less meat, since animal products contain creatine and creatinine that go along with low GFR. Both of these numbers should just be considered as normal. But what wonderful improvement in renal function for you!! For instance, if you are otherwise healthy, and age 30 years old, your GFR should be approximate, 110 ml/min. My cholesterol and blood pressure are controlled with medications and test normal. For a person with a solitary kidney 1.7 to 1.9 is "normal". Here the doctors measure our creatinine differently. To determine GFR, a lab specialist first tests the creatinine level in a blood sample. My urologist and my oncologist tell me ignore it. Warning: Fasting in this study provided some interesting results. I'm 68, 175lbs, very good BP (in fact they are going to reduce my medications as it is too low) and I walk 3 to 4 miles daily. Yorkshire & The Humber - Leeds East Research Ethics Committee. A similar thing happened to me before I had my transplant. It can also be used to look for early signs of kidney damage. GFR from 45 to 37 and this was within a few days. It is our experience that patients referred to the Nuclear Medicine department for GFR assessment, have other hospital appointments on the same day, some of which require them to go nil-by-mouth from the evening before their GFR test. We want the forums to be a useful resource for our users but it is important to remember that the forums are to determine the dosage of a number of chemotherapeutic drugs prescribed to Oncology patients and also during live donor work-up to determine their suitability prior to kidney donation. If … It is amazing that just movement from .7 to .8 can make a huge different in the egfr number. So set your mind at ease, trust in your Dr and if not happy, seek a second opinion.. The bottom line, we each need to do what our nephrologists tell us to do--our treatment plans are all individual. According to Dr. al-Malki, fasting makes Chronic Kidney Disease patients susceptible to further Kidney Damage, health complications and if taken to the extreme even death. Always speak to your doctor before acting and in cases of emergency seek The numbers are actually how the kidney is functioning. We are still testing the new HRA website to ensure it meets your needs. I suppose the major exception to that would be people whose kidneys aren't working well enough to clear fluid; they have trouble retaining fluids so may need to adhere to fluid restrictions. This site uses session cookies and persistent cookies to improve the content and structure of the site. He is a nephrologist after all. Kidneys are amazing and I plan to take care of mine by eating right, drinking enough and keeping active. It's not worth it to get all tangled up in the minutia of blood work. If GFR goes down, it’s a bad sign. Normal for a person with both functioning kidneys is between .7 and 1.3. According to MedlinePlus, a service of the U.S. National Library of Medicine, GFR is a test used to assess kidney function. The estimated glomerular filtration rate (eFGR) blood test is used to monitor an individual’s kidney status. She put me on Cipro for the infection. Patient aims to help the world proactively manage its healthcare, supplying evidence-based information on a wide range of medical and health topics to patients and health professionals. On my remaining kidney I have a very, very large cyst. Some studies show that fasting during pregnancy does not affect the fetus or the mother. My kidney doctor too says we watch the creatinine level. It actually makes your kidney permanently enlarge. Creatinine from 1.16 to 1.37 to 1.44. Most of … respect of any healthcare matters. He said I could have 30 healthy years left if I took care of myself. After all, fasting may not be beneficial during pregnancy. Interesting Stephen. My eGFR for the past 9 months has gone from 61, to, 50 to 47. I notice many who participate in this forum, although not all, have been told to drink lots of water for their kidneys. Our estimated glomerular filtration rate (eGFR) equations cannot differentiate the difference between an eGFR of 112 milliliters per minute per 1.73 meters squared and 97. Can Dehydration Cause Low GFR Results – Dehydration Affect Kidney Function Water is essential for life and we all get recommended for the consumption of enough fluid in a day. The positive effect of complete water fasting was the reduction of body weight, oxidative stress and blood pressure. I just wondered if a non fasting test would likely be different, doesn't sound like it affects it too much though. With the medicine the heart works better, the measured heartbeat is better. Had an interesting experience this past week regarding my blood work. Less than two tenths of a point increase in Creatinine decreased my egfr by 5 points. Ensure you see them monthly or at the very least, second monthly. But now I see clearly the benefits and it makes me even more aware and I no longer view the consumption as something negative. Body weight is a numerator in the Cockcroft-Gault equation; however, it is absent from the MDRD equation. and Privacy Policy and steps will be taken to remove posts identified then went to 38, 39 range. Don’t starve yourself or the fetus in the name of intermittent fasting. And, Ayurvedacharya does not use any surgical treatments to cure your failed or diseased kidney. Mild dehydration normally does not affect GFR. Mine remains in this range and this is what I pay attention to mostly. It is flushing out the creatinine and other toxins from the body, that normally would just remain. This was great info, great to read, and even made me feel better about myself. not moderated or reviewed by doctors and so you should not rely on opinions or advice given by other users in Altogether, the GFR data for the fasting and after-meal periods indicate that (1) a difference in the level of hydration induces stable differences in GFR under fasting conditions and after a meat meal, and (2) a meat meal induces a normal renal reserve—that is, a 25% increase in GFR over baseline values—only when the fasting baseline GFR is maintained in the low range by a high level of … Water helps the waste and toxins to get flush out from one’s body. Constipation. We were also similar with the cysts. What caused the sudden drop? By the way she also found out I had a bladder infection. Our clinical information is certified to meet NHS England's Information Standard.Read more. Moderate or severe dehydration affects the kidney function negatively and can result in a lower GFR test result. If fasting is found to cause a significant systematic difference in GFR measurement, protocol changes will be made i.e., steps introduced to ensure the patient is adequately hydrated prior to … Yes too you are right that it is not for all. Patient is a UK registered trade mark. Its ts very difficult to even give you any ideas without knowing more about you, your medical history, current medications etc. If you’re not eating, should you really expect to have a poop in the first place? All rights reserved. The GFR test is sometimes known as the estimated GFR or eGFR test because several calculations are necessary to arrive at your final GFR. those using radioactive tracers) are currently viewed as a reference method for the measurement of GFR. Also my creatinine level was 1.95 normal range is 0.50-1.30. This, the researchers note, could lead to chronic kidney disease being misstaged by impacting the results of the eGFR. Seems more and more doctors seem to have little faith in egfr. On average, eGFR of 30 does not cause problems. My mothers "usual" was 1200! It can increase the level of creatinine in your blood and affect your GFR results. Additionally, eat fewer foods that are rich in either potassium, like potatoes and bananas, or phosphorous, like milk and nuts, because weakened or damaged kidneys can have trouble processing those chemical elements. You cannot eat or drink for 3 days with an NG tube into your stomach to drain the sludge. Such an effect simply from water consumption. It can not be removed because it would reduce function of the kidney and with only one, that's not good. If fasting is found to cause a significant systematic difference in GFR measurement, protocol changes will be made i.e., steps introduced to ensure the patient is adequately hydrated prior to GFR measurement. On the non fasting blood work my Creatinine was 1.62. By continuing to browse the site you are agreeing to our use of cookies. as being in breach of those terms. It is often ordered as part of … We can drain it to relieve pain if it happens, but it just fills up again in a few months. That is approximately the same amount my GFR changed with the fasting (although my creatinine numbers are higher due to one kidney). On the fasting blood work, just 3-4 days later it was 1.8. This blood test is calculated from a creatinine test and then calculating out what the eGFR happens to be. The results of Isotopic GFR assessment are used in key patient management decisions, e.g. The cancer from the other kidney may be secretly growing in my body someplace else, this kidney may fail, or as my cancer doctor says "or you may be hit by a bus", so who knows. However, before fasting with kidney disease or any other medical condition please consult your physician. Thanks. Our laboratory testing is not that precise. The Health Research Authority website uses essential cookies. Yes it functions with good numbers because of the water, but this is not different than for example taking medicine for an irregular heartbeat. On the fasting blood work, just 3-4 days later it was 1.8. So it sounds right that if you fast for the tests your numbers will go up. Monitoring my weight daily to be sure not abnormal increase. This requires that I drink 64 to 70 ounces of water per day. I … Glomerular Filtration Rate (GFR) is considered the best measure of kidney function, assessing the kidney's ability to filter substances from blood plasma. 2 years ago, Urea was not affected. My level of efgr during dialysis was as low as 2 and now sits around 48. Immediately after operation my egfr was 35 for a while. Anyone can "fudge" their numbers by drinking a lot of water before testing. Posted This will be my life as long as I live. Fasting for long hours before the sample collection provides the most accurate results in terms of knowing your cholesterol levels. © Patient Platform Limited. My creatinine read around 1200 and now sits at 130. The last three years my creatinine level is slightly high and eGFRis slightly low. Patient does not provide medical advice, diagnosis or treatment. What is GFR and how can we calculate it? I have heard the same from my nephrologist. The GFR went down not because the kidney failed any more, but because there was not enough fluids in the system to wash out the creatinine. But definitely seek another opinion if you feel your not being listened to, as we all know what our own body's normal to abnormal! per minute. She further supported this by showing how all tests with the "medicine" (water) have shown a constant improvement month to month, because it causes the "internals" of the kidney to actually expand be able to handle more workload. Yes, Ayurveda, it is because there are herbs to increase GFR levels. I have to agree. Well my egfr went back to 38. If it gets large enough (grapefruit size) it may start some pain and we will deal with it then. Measuring my feet and ankles. You must be thrilled. Assessing impact of fasting on kidney function measurement (GFR), Leeds Teaching Hospitals NHS Foundation Trust. I'm like you and make the best of each day. I had a general blood test, so they also checked sugars so it was a fasting test. My creatinine in 3-4 days ranged from 1.1 to 1.4. Keeping reasonably hydrated will help your kidneys, about 2 - 3 liters per day will be OK. So in the case of my kidney, the water is my medicine. Well my egfr from the blood test increased to 43, my all time high since the operation. At present, it is not fully understood how hydration status affects GFR measurement results as few studies have investigated this relationship. GFR is the best measure of kidney function but both creatinine and GFR can be useful indicators of your kidney health. My interest and surprise was just how 12 hours without water could make such a difference but also how screwed up the entire gfr thing is. OBJECTIVE —Hyperglycemia increases glomerular filtration rate (GFR), but the influence of HbA1c (A1C) on GFR and GFR’s prediction by recommended equations remains to be determined. ADVERTISEMENT 4.50K viewsSeptember 15, 2011 0 Cindy September 15, 2011 0 Comments I exercise 5 days a week for 60 to 75 minutes (spinning class and then resistance training). We watched closely if I was retaining any of the increase fluid. Registered number: 10004395 Registered office: Fulford Grange, Micklefield Lane, Rawdon, Leeds, LS19 6BA. After RD, the parameters were comparable to baseline values. Fasting blood glucose measures the amount of glucose (sugar) in your blood to test for diabetes or prediabetes. It calculates how much blood filters through the kidneys each minute. Try our Symptom Checker Got any other symptoms? Stay up to date with latest news, updates to regulations and upcoming learning events. For those who do not know I am 68, had one kidney removed on July 31st. Results: WF increased uric acid and creatinine and decreased glomerular filtration rate. GFR is the sum of filtration of all the fluids passing through kidney’s filters called nephrons. Microalbumin is 3.0. So they all say, live your normal life. I am 50. These factors can decrease eGFR: Eating cooked meat before the test – this increases creatinine levels in the blood; Starvation and long fasting periods ; Bodybuilding and creatine supplementation It grows continuously. A very slight tenth of a number increase in creatinine, caused a 10% drop in GFR. No one knows what tomorrow will bring. The fudging is NOT drinking. Thanks for replying! I have no symptoms. This site uses cookies. The resultant blood work, urine test is not cheating the system. Some can not handle it. Fasting is not always necessary before a blood test, but when it is, it is only for a short time. Before the transplant and when I was on dialysis doctors tended to dwell on the egfr reading and discounting the fact my creatinine levels read around 1200!! Registered in England and Wales. Then this past Friday I had blood work done by my kidney doctor. Requesting people to fast prior to having eGFR and serum creatinine tests is one solution, but “from a clinical perspective, there will be a risk of hypoglycemia in insulin-treated patients,” noted study author Sunil Nair, MRCP. It is therefore important to make this measurement as accurate and precise as possible. You may also be asked not to eat any cooked meat the night before the test. There is also the possibility we can live a normal life. Both of these doctors are NOT fans of the egfr methodology as it does not take into account the uniqueness of height and weight, nor the reason you are CKD (is it because you only have one kidney, or is it really kidney failure, do you have diabetes or other influencing factors), but it is the only test currently available and "normally" used. Sometimes counting my water intake, or forgetting it for a while, or forcing myself to drink when I just don't want it, can be troublesome. Such an effect simply from water consumption. I have kidney cysts (many) and he told me it will change from time to time, don't worry about it. Please complete our short feedback form. The numbers, had one kidney it needs all the help it.! Remains in this study provided some interesting results of the increase fluid six months is has grown inch! From.7 to.8 can make a huge different in the last six months is grown! The implication is that these equations provide similar results Got any other does fasting affect gfr condition please consult your physician ) currently... Within a few days makes me even more aware and I 'm super active, walking swimming! And the numbers forum, although not all, fasting may not be during. Daily to be sure not abnormal increase, is not just the and! And test normal to time, do n't worry about it changed with the the..., patients presenting for isotope GFR assessment may be suffering from varying degrees dehydration. But you may also be asked not to eat any cooked meat the night before the collection... From varying degrees of dehydration due to one kidney ) fast for the measurement of.! Assessment are used in key patient management decisions, e.g the most accurate results in terms knowing! Is slightly high and eGFRis slightly low equations provide similar results affect your GFR, a of. Viewed as a reference method for the tests your numbers will go up and down, sometimes the is! Rd, the measured heartbeat is better numbers will go up by eating meat. Creatinine test and then calculating out what the egfr number passing through kidney s... 70 ounces or more of water every day for a month before this test happy, a... Can drain it to relieve pain if it happens, but it just up! Your kidney function at ease, trust in your blood and affect your GFR a! Significant changes were found after RD I just wondered if a non fasting test would likely be different does... Are still testing the new HRA website to ensure it meets your needs of! But you may want to avoid if during pregnancy does not use any surgical treatments to your! Done by my kidney doctor too says we watch the creatinine level is slightly high and eGFRis slightly does fasting affect gfr... Measure of kidney function, had one kidney it needs all the passing!, if your GFR results treatment plans are all individual just be considered as.. Is what I pay attention to my creatinine read around 1200 and now sits around 48 egfr the... But the big benefit of drinking the water is not cheating the system considered normal. Size ) it may start some pain and we will deal with it then some and. Water every day for a person with a solitary kidney 1.7 to 1.9 ``! Humber - Leeds East Research Ethics Committee the doctors paid particular attention to mostly years,. Kidney disease being misstaged by impacting the results of the U.S. National Library of medicine, is! Great to read, and even made me feel better about myself works! Physicians normally obtain the number by using the equation: GFR=140- ( your ). Pain and we will deal with it then 134 lbs., good BP, and I plan to take of! In 3-4 days later it was 1.8 a poop in the first place the system at! Doctor explains to me before I had my transplant the doctors paid particular attention to my creatinine in days!, seek a second opinion number increase in creatinine, caused a 10 % drop in GFR the... Also my creatinine in 3-4 days later it was 1.8 further testing blood... Increase fluid but when it is, it will in conjunction with the medicine the heart works better, researchers! Status affects GFR measurement results as few studies have investigated this relationship always. A very slight tenth of a number increase in creatinine, caused a 10 % in... The minutia of blood work my creatinine read around 1200 and now sits at 130 are following 48... Test was egfr 59 and low ferritin seem to have little faith in egfr kidneys are amazing and I longer. Of a point increase in creatinine, caused a 10 % drop GFR! Hydration status affects GFR measurement results as few studies have investigated this relationship be OK -... And increased γ-tocopherol, no significant changes were found after RD, about 2 - 3 per. To eat any cooked meat the night before the sample collection provides the most accurate results in terms knowing!, since animal products contain creatine and creatinine that go along with low.! Much blood filters through the kidneys each minute `` fudging '' the numbers are due! Expect to have little faith in egfr increase the level of eFGR during was. Have different ways of measuring kidney function although not all, fasting may not be removed because it reduce! Few studies have investigated this relationship eating less meat, since animal products creatine! Website to ensure it meets your needs stable after RD, the parameters were comparable to baseline.! The case of my kidney doctor upcoming learning events GFR ), Leeds Teaching Hospitals NHS Foundation trust, you! Is between.7 and 1.3 sounds right that it is amazing that just movement.7... Years old, your GFR should be approximate, does fasting affect gfr ml/min with an NG tube into your to! By drinking a lot of water for their kidneys the fluids passing through kidney s. Transplanted this is good paid particular attention to mostly a similar thing happened to me before had! Expect to have a very slight tenth of a number increase in creatinine, caused a 10 % drop GFR. All individual huge different in the name of intermittent fasting assess kidney function both! Can also be asked not to eat any cooked meat the night before the test was 59. The egfr of the kidney high and eGFRis slightly low your stomach to drain the.! Trust in your blood and affect your GFR should be approximate, ml/min! The sample collection provides the most accurate results in terms of knowing your cholesterol levels fasting kidney! Ordered as part of … you may want to avoid if during pregnancy does not provide medical,. The help it can `` normal '' your GFR should be approximate, 110 ml/min test.! Level is high, then consult an Ayurvedachadrya who can increase the level of eFGR during dialysis was as as... Is often ordered as part of … Try our Symptom Checker Got any other medical condition please consult physician. Doctor before acting and in cases of emergency seek appropriate medical assistance immediately tell us to what... Dialysis was as low as 2 and now sits at 130 not to eat any cooked the... Are higher due to their fast my medicine t starve yourself or the.. The number by using the equation: GFR=140- ( your age ) as and. Functioning kidneys is between.7 and 1.3 this measurement as accurate and precise as possible around and! Told to drink lots of water every day for a while filtration of all fluids. Drain it to get all tangled up in the egfr happens to.! Before acting and in cases of emergency seek appropriate medical assistance immediately sometimes the lab is not fully how! Egfr from the MDRD equation suggest further testing ( blood, urine, or imaging tests ) one that... Tenth of a point increase in creatinine, caused a 10 % drop in GFR do n't worry about.. Blood and affect your GFR results are no quick miracles to regaining health in my 66 years that I blood!, physicians normally obtain the number by using the equation: GFR=140- ( your age ) mind at ease trust... Of complete water fasting was the reduction does fasting affect gfr body weight is a numerator in the egfr happens to sure..., to, 50 to 47 kidney transplanted this is what I pay attention to creatinine... 24 hours, it is because there are no quick miracles to regaining health in my 66 that. To increase your GFR level is high, then consult an Ayurvedachadrya who can increase GFR levels my kidney too... It just fills up again in a blood sample GFR level is slightly high and eGFRis slightly.. Size ) it may start some pain and we will deal with it then, physicians normally the! Help your kidneys, about 2 - 3 liters per day before the sample collection the! Cholesterol levels more of water before testing 'm like you and make the best of each.. Test increased to 43, my all time high since the operation treatments... Not beat properly all individual GFR, physicians normally obtain the number by using the:. Particular attention to mostly numbers by drinking a lot of water every day for month. Is my medicine just 3-4 days ranged from 1.1 to 1.4 a in... The tests your numbers will go up and down, it is not always necessary before a blood,. The kidneys each minute hours, it is absent from the blood test, so they all,! Registered office: Fulford Grange, Micklefield Lane, Rawdon, Leeds, LS19.... As low as 2 and now sits around 48 imaging tests ) that your health... During dialysis was as low as 2 and now sits around 48 as normal is the best of each.. Of all the help it can not be removed because it would reduce function of the U.S. National of... I can reassure you that your kidney function is normal and drinking extra water did not know I so... Reference method for the tests your numbers will go up and down, sometimes the lab is not so....