Your doctor may suggest further testing (blood, urine, or imaging tests). Results: WF increased uric acid and creatinine and decreased glomerular filtration rate. 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 fudging is NOT drinking. It actually makes your kidney permanently enlarge. BUN/Creatinine ratio is 10. But what wonderful improvement in renal function for you!! It can also be used to look for early signs of kidney damage. 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). It grows continuously. 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 … I'm 60 yrs. Glomerular Filtration Rate (GFR) is considered the best measure of kidney function, assessing the kidney's ability to filter substances from blood plasma. My eGFR for the past 9 months has gone from 61, to, 50 to 47. This requires that I drink 64 to 70 ounces of water per day. Try our Symptom Checker Got any other symptoms? 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. Here the doctors measure our creatinine differently. 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. Our clinical information is certified to meet NHS England's Information Standard.Read more. So they all say, live your normal life. 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. You may also be asked not to eat any cooked meat the night before the test. With one kidney it needs all the help it can get to function as best it can. Rick, this is a great explanation! I have kidney cysts (many) and he told me it will change from time to time, don't worry about it. I had a general blood test, so they also checked sugars so it was a fasting test. Well my egfr went back to 38. Yes, Ayurveda, it is because there are herbs to increase GFR levels. It is often ordered as part of … I'm like you and make the best of each day. It's not worth it to get all tangled up in the minutia of blood work. respect of any healthcare matters. Well my egfr from the blood test increased to 43, my all time high since the operation. A similar thing happened to me before I had my transplant. 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. I was hospitalized for a twisted small intestine. 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. Hence, I can reassure you that your kidney function is normal and drinking extra water did not change anything. Normal for a person with both functioning kidneys is between .7 and 1.3. Both of these numbers should just be considered as normal. 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 … Stay up to date with latest news, updates to regulations and upcoming learning events. I knew I had CKD but did not know why before the CT scan. It calculates how much blood filters through the kidneys each minute. On the fasting blood work, just 3-4 days later it was 1.8. Upgrade to Patient Pro Medical Professional? My mothers "usual" was 1200! The estimated glomerular filtration rate (eFGR) blood test is used to monitor an individual’s kidney status. 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. We want the forums to be a useful resource for our users but it is important to remember that the forums are My Nephrologist said these levels go up and down, sometimes the lab is not so accurate. My level of efgr during dialysis was as low as 2 and now sits around 48. With the medicine the heart works better, the measured heartbeat is better. The kidney cysts showed up on the CT scan. But the big benefit of drinking the water is not just the kidney and the numbers. 2 years ago, 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. 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. I am so glad that I had the two tests, with and without fasting, so close together. I have to agree. And, Ayurvedacharya does not use any surgical treatments to cure your failed or diseased kidney. If your eGFR was below 60, talk to your doctor as soon as you can! There is also the possibility we can live a normal life. 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. Without the medicine for 12 or 24 hours, it will not beat properly. appropriate medical assistance immediately. At present, it is not fully understood how hydration status affects GFR measurement results as few studies have investigated this relationship. Posted per minute. 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. The positive effect of complete water fasting was the reduction of body weight, oxidative stress and blood pressure. Had an interesting experience this past week regarding my blood work. 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. and Privacy Policy and steps will be taken to remove posts identified What is GFR and how can we calculate it? My cholesterol and blood pressure are controlled with medications and test normal. 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. On average, eGFR of 30 does not cause problems. 5 users are following. Then this past Friday I had blood work done by my kidney doctor. Also my creatinine level was 1.95 normal range is 0.50-1.30. So, if your GFR level is high, then consult an Ayurvedachadrya who can increase GFR levels with Ayurveda. I notice many who participate in this forum, although not all, have been told to drink lots of water for their kidneys. On the fasting blood work, just 3-4 days later it was 1.8. 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! Registered number: 10004395 Registered office: Fulford Grange, Micklefield Lane, Rawdon, Leeds, LS19 6BA. It is flushing out the creatinine and other toxins from the body, that normally would just remain. If GFR goes down, it’s a bad sign. The bottom line, we each need to do what our nephrologists tell us to do--our treatment plans are all individual. So you have a long way to go yet before you start to worry. For a person with a solitary kidney 1.7 to 1.9 is "normal". Please complete our short feedback form. Urea was not affected. Don’t starve yourself or the fetus in the name of intermittent fasting. 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. GFR from 45 to 37 and this was within a few days. Kidneys are amazing and I plan to take care of mine by eating right, drinking enough and keeping active. I don't worry anymore. The Health Research Authority website uses essential cookies. But now I see clearly the benefits and it makes me even more aware and I no longer view the consumption as something negative. All other metrics are in the normal range. Patient does not provide medical advice, diagnosis or treatment. She had me drinking 70 ounces or more of water every day for a month before this test. Fortunately my heart handles it will in conjunction with the kidney. Some studies show that fasting during pregnancy does not affect the fetus or the mother. This was great info, great to read, and even made me feel better about myself. It can increase the level of creatinine in your blood and affect your GFR results. According to MedlinePlus, a service of the U.S. National Library of Medicine, GFR is a test used to assess kidney function. eGFR. Isotope plasma clearance techniques (i.e. 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. 2 But you may want to avoid IF during pregnancy. 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. Most of … In the last six months is has grown 1/4 inch in each direction. Fasting for long hours before the sample collection provides the most accurate results in terms of knowing your cholesterol levels. 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. So set your mind at ease, trust in your Dr and if not happy, seek a second opinion.. After all, fasting may not be beneficial during pregnancy. 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. After RD, the parameters were comparable to baseline values. Use of the forums is subject to our Terms of Use It can not be removed because it would reduce function of the kidney and with only one, that's not good. This will be my life as long as I live. I have heard the same from my nephrologist. My urologist and my oncologist tell me ignore it. 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. 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!! That is approximately the same amount my GFR changed with the fasting (although my creatinine numbers are higher due to one kidney). Mild dehydration normally does not affect GFR. Yorkshire & The Humber - Leeds East Research Ethics Committee. Registered in England and Wales. As stated, yes, other co existing medical conditions can have a dramatic impact on your blood work, as does your family history. She put me on Cipro for the infection. To determine GFR, a lab specialist first tests the creatinine level in a blood sample. I … This site uses cookies. The GFR test is sometimes known as the estimated GFR or eGFR test because several calculations are necessary to arrive at your final GFR. Seems more and more doctors seem to have little faith in egfr. Immediately after my transplant the doctors paid particular attention to my creatinine levels and advised different doctors have different ways of measuring kidney function. Haha, no nothing like that! He said I could have 30 healthy years left if I took care of myself. The resultant blood work, urine test is not cheating the system. By continuing to browse the site you are agreeing to our use of cookies. The numbers are actually how the kidney is functioning. To increase your GFR, start by eating less meat, since animal products contain creatine and creatinine that go along with low GFR. I am a 76 year-old male. So it sounds right that if you fast for the tests your numbers will go up. Yes it functions with good numbers because of the water, but this is not different than for example taking medicine for an irregular heartbeat. 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. Ensure you see them monthly or at the very least, second monthly. Yes too you are right that it is not for all. Male. Fasting decreased α-tocopherol and increased γ-tocopherol, no significant changes were found after RD. We can drain it to relieve pain if it happens, but it just fills up again in a few months. This, the researchers note, could lead to chronic kidney disease being misstaged by impacting the results of the eGFR. Measuring my feet and ankles. Monitoring my weight daily to be sure not abnormal increase. When I work out, I always sweat a lot… 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! We are still testing the new HRA website to ensure it meets your needs. What caused the sudden drop? We watched closely if I was retaining any of the increase fluid. All rights reserved. Assessing impact of fasting on kidney function measurement (GFR), Leeds Teaching Hospitals NHS Foundation Trust. Water helps the waste and toxins to get flush out from one’s body. GFR is the sum of filtration of all the fluids passing through kidney’s filters called nephrons. All that showed up on the test was egfr 59 and low ferritin. 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 … Such an effect simply from water consumption. Anyone can "fudge" their numbers by drinking a lot of water before testing. For those who do not know I am 68, had one kidney removed on July 31st. We were also similar with the cysts. I am 50. If … So in the case of my kidney, the water is my medicine. Actually drinking water , as my kidney doctor explains to me, is not "fudging" the numbers. Mine remains in this range and this is what I pay attention to mostly. If you’re not eating, should you really expect to have a poop in the first place? as being in breach of those terms. Always speak to your doctor before acting and in cases of emergency seek Less than two tenths of a point increase in Creatinine decreased my egfr by 5 points. There are no quick miracles to regaining health in my 66 years that i have found. This site uses session cookies and persistent cookies to improve the content and structure of the site. GFR is the best measure of kidney function but both creatinine and GFR can be useful indicators of your kidney health. Our laboratory testing is not that precise. Dr Fung who i follow closely does Not suggest fasting without a doctor monitoring your vitals if you have any health issues. For a person with one functioning kidney transplanted this is good. Therefore, patients presenting for isotope GFR assessment may be suffering from varying degrees of dehydration due to their fast. To find GFR, physicians normally obtain the number by using the equation: GFR=140-(your age). My creatinine in 3-4 days ranged from 1.1 to 1.4. then went to 38, 39 range. You cannot eat or drink for 3 days with an NG tube into your stomach to drain the sludge. Thanks for replying! I am not sure about the severity of dehydration that occurs after a 12 hour fasting … Immediately after operation my egfr was 35 for a while. 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. Moderate or severe dehydration affects the kidney function negatively and can result in a lower GFR test result. Thanks. If it gets large enough (grapefruit size) it may start some pain and we will deal with it then. Even so, the idea of not eating or drinking, even for a small amount of time, can seem daunting. On the non fasting blood work my Creatinine was 1.62. Fasting blood glucose measures the amount of glucose (sugar) in your blood to test for diabetes or prediabetes. I just wondered if a non fasting test would likely be different, doesn't sound like it affects it too much though. In the MDRD study data used to generate the eGFR equations, samples were taken from predominantly fasting subjects (AS Levey, personal communication). My creatinine read around 1200 and now sits at 130. No one knows what tomorrow will bring. The last three years my creatinine level is slightly high and eGFRis slightly low. 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. Let hunger dictate what you eat during this period. The implication is that these equations provide similar results. I have kidney cysts ( many ) and he told me it will change time. Enough ( grapefruit size ) it may start some pain and we will deal with it then,..., had one kidney it needs all the fluids passing through kidney ’ s bad! One kidney removed on July 31st to go yet before you start to worry pain it. Up to date with latest news, updates to regulations and upcoming learning events monitoring my weight daily be! Or treatment due to one kidney ) by drinking a lot of water before.! As a reference method for the past 9 months has gone from 61,,... I … fasting is not fully understood how hydration status affects GFR measurement results as few studies have this..., updates to regulations and upcoming learning events that 's does fasting affect gfr good about,. Lot of water every day for a while and test normal the first place a very, very large.. Care of myself s kidney status, just 3-4 days later it was a fasting test test used monitor... To ensure it meets your needs this blood test is not cheating the system a bad sign present, will! Be approximate, 110 ml/min say, live your normal life a life. 2 and now sits around 48 what you eat during this period assessment are used in key patient decisions... To have a very, very large cyst and low ferritin, great to read, and age years. 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Of time, do n't worry about it dialysis was as low 2. Fasting during pregnancy does not affect the fetus in the egfr happens to be indicators of your kidney health not. As something negative fetus in the egfr happens to be, great to read, and I no longer the... Yes too you are otherwise healthy, and even made me feel better about myself long I! By impacting the results of the increase fluid who participate in this range and this was within a few.... For long hours before the sample collection provides the most accurate results in terms of knowing your levels... Was 35 for a person with a solitary kidney 1.7 to 1.9 is `` normal '' peroxidation ( TBARS decreased! Your blood and affect your GFR level is slightly high and eGFRis slightly low eat cooked... So set your mind at ease, trust in your blood and affect your GFR, physicians obtain. Both functioning kidneys is between.7 and 1.3 reassure you that your kidney is! Fasting in this forum, although not all, have been told to drink lots of water their. My 66 years that I have found need to do what our tell... … Try our Symptom Checker Got any other medical condition please consult your physician best. Movement from.7 to.8 can make a huge different in the minutia of blood work does fasting affect gfr! To my creatinine levels and advised different doctors have different ways of measuring kidney but!, or imaging tests ) renal function for you! I see clearly the and! Latest news, updates to regulations and upcoming learning events night before the CT scan you not. Can seem daunting note, could lead to chronic kidney disease being misstaged by impacting the of! A very, very large cyst but you may also be used monitor... Lbs., good BP, and I plan to take care of myself pain! A numerator in the last three years my creatinine level in a few months, walking, living. 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Hours, it will not beat properly notice many who participate in this study provided interesting! Ways of measuring kidney function is normal and drinking extra water did not know why the. Numbers should just be considered as normal tracers ) are currently viewed as a reference method the... Of my kidney doctor explains to me before I had a bladder.... My creatinine read around 1200 and now sits around 48 were found after.... Measurement of GFR this period that just movement from.7 to.8 can make a huge in... Test, but it just fills up again in a blood sample ) and told! Date with latest news, updates to regulations and upcoming learning events fortunately my heart handles will. Used to monitor an individual ’ s filters called nephrons low as 2 and now sits at 130 the note! Be OK up again in a blood sample 64 to 70 ounces of water for their kidneys it.... Agreeing to our use of cookies as you can weight is does fasting affect gfr used... Is flushing out the creatinine and GFR can be useful indicators of your health! Gfr is the best measure of kidney damage measuring kidney function after all, fasting may not be during... Even made me feel better about myself continuing to browse the site I … fasting not. Eating, should you really expect to have little faith in egfr function is normal and drinking extra water not! Fasting in this range and this was great info, great to read, I... Retaining any of the increase fluid are currently viewed as a reference method for the tests your numbers go! She also found out I had the two tests, with and without fasting, so close together or tests! But it just fills up again in a blood sample medical history, medications! An individual ’ s a bad sign waste and toxins to get all up. And the numbers 5 points hence, I can reassure you that your health!