- MDRD GFR Equation. Estimates glomerular filtration rate based on creatinine and patient characteristics. INSTRUCTIONS. Only for chronic kidney disease (CKD); not accurate for acute renal failure. Also, note that a later study indicates the MDRD may underestimate the actual GFR in healthy patients by up to 29%
- e disposition in community-acquired pneumonia
- Back to MDRD GFR Pediatric Calculator Cockcroft-Gault Calculator Cockcroft-Gault Calculator (defaults to SI Units) MDRD Calculator - Extended - Defaults to SI Units MDRD Calculator - Extended version n. A description or report of something as modified by one's character or opinion.>version n

- Korrigerat Na Kroppsyta LDL (beräknat) Lungemboli Medelartärtryck MDRD MELD MEWS Na-brist Na-utsöndring NEXUS-kriterierna Njurfunktion Osmolgap Ottawa Ankle Ottawa Knee Parkland PERC-regeln PESI-score: Promillehalt Rockall Strokeskala Syncope Rule Sunnybrook Syrgas TIMI NSTEMI TIMI STEMI QTc Vätskebehov Vattenunderskott WETBAGS-5A Winters.
- • eGFR från Kreatinin , MDRD ligger på gränsen, dvs 74,2% av eGFR inom ± P30. 20 ; Slutsatser från SBU -rapporten och vår studie • GFR kan skattas med acceptabel noggrannhet från Kreatinin eller Cystatin C i de flesta fall. • Cockcroft-Gault är sämre än de nya formlerna att skatta GF
- erande uppgift för njurarna är dock filtration av plasma och produktion av urin
- GFR-estimatet baserat på medelvärdet av de båda estimaten, (eGFR cystatin C + eGFR kreatinin)/2, används. Ju närmare eGFR cystatin C och eGFR kreatinin stämmer överens, desto säkrare är medelvärdesestimatet och om eGFR cystatin C /eGFR kreatinin-kvoten ligger inom intervallet 0,80-1,20 kan man i allmänhet lita på medelvärdesestimatet
- Der Laborwert GFR (glomeruläre Filtrationsrate) dient zur Beurteilung der Nierenfunktion.Der Wert GFR wird mittels Kreatinin-Clearance Untersuchung oder MDRD-Berechnungsmethode aus dem Kreatininwert im menschlichen Blut gemessen und errechnet
- ations which are isotope.
- /1.73 m2

- Dessutom bör man vara medveten om att eGFR resultatet inte är relevant för akut sjuka patienter vilka inte är i steady state. Pt-eGFR (1.73m2), medel. Medelvärdet av eGFR beräknat utifrån kreatinin och eGFR beräknat utifrån cystatin C visar bättre noggrannhet vid skattning av njurfunktion jämfört med de enskilda eGFR resultat
- /1,73 m 2 eller BMI < 20 kg.
- /1,73 m 2: Formel enligt Lund-Malmö reviderad. Rekommenderas av SBU. Källa: 1. Björk J et al Clin Lab Invest. 2011 71(3):232-9. 2. Skattning av njurfunktion - En systematisk litteraturöversikt. SBU 2013

NOTE: CKD-EPI GFR is only valid with creatinine methods are traceable to IDMS: Age: years: Race: African American All other races* Gender: Male Female: TRACEABLE TO IDMS(What is this?) No Yes: CKD-EPI EQUATIONValue: epi. MDRD STUDY EQUATION: mdrd (Age, Race, Gender, Plasma creatinine) Chronic kidney disease (GFR less than 60 or kidney damage. MDRD STUDY EQUATION: mdrd: demographics: Chronic kidney disease (GFR less than 60 or kidney damage for at least three months) MDRD STUDY EQ CKD-EPI CREATININE EQ (2009) CKD-EPI CYSTATIN C (2012) CKD-EPI CREATININE-CYSTATIN C (2012) *All ethnic groups other than African American Shortcut: Type underlined letters to toggle between variable Blodprov som visar halten kreatinin i blodet är ett av de vanligaste blodproven. Provet tas för att läkaren ska få en uppfattning om hur dina njurar fungerar. Kreatininprov kan tas i samband med en undersökning men det kan också tas inför en behandling med vissa typer av läkemedel The MDRD equation yielded lower estimates of eGFR than the CKD-EPI equation, with small mean difference between the equations at low eGFR level but substantial at the level of only mildly decreased or near-normal to normal kidney function. Decrease of eGFR was associated with an increase in CKD and CVD risk factors

- Normal GFR varies according to age, sex, and body size, and declines with age. The National Kidney Foundation recommends using the CKD-EPI Creatinine Equation (2009) to estimate GFR. NKF and the American Society of Nephrology have convened a Task Force to focus on the use of race to estimate GFR
- The CKD-EPI equation and the MDRD Study equation are the two formulas to estimate GFR. Both are considered accurate. In the calculation of GFR of African Americans', the formula is to multiply the GFR estimate for Caucasians by 1.16 for the CKD-EPI equation and 1.21 for the MDRD Study equation. MDRD equation： GFR = 186 x (Stand
- ), absolut GFR. För att kunna jämföra njurfunktionen mellan individer med olika kroppsstorlek (och därmed olika njurstorlek) brukar värdet normeras till kroppsytan 1,73 m 2, s.k. relativ GFR (mL/
- If you have an eGFR value calculated by a local laboratory, use that. It is likely to be more accurate than this calculator, which cannot take into account local variations in creatinine measurements
- eGFR is a measure of how well your kidneys are working. It is often reported automatically when you do a creatinine blood test, as a part of your comprehensive metabolic panel (CMP).Read on to learn more about this marker, what it means when your values are outside of the normal range, and how you can increase your eGFR levels
- /1,73 m². MDRD-formeln har efter att ha validerats på stora populationer utvecklats ytterligare till den så kallade CKD-EPI-formeln, som ger bättre upattningar av eGFR vid bättre njurfunktion (GFR >60 ml/
- /1.73 m 2 and no proteinuri

Nyman U, Grubb A, Larsson A, Hansson L-O, Flodin M, Nordin G, Lindström V, Björk J: The revised Lund-Malmö GFR estimating equation outperforms MDRD and CKD-EPI across GFR, age and BMI intervals in a large Swedish population. Clin Chem Lab Med 2014; 52: 815-824. DOI: 10.1515/cclm-2013-074 MDRD eGFR = 186×[Plasma Creatinine (μmol/L)×0.0011312]−1.154 ×[age (years)]−0.203 ×[0.742 if female]×[1.212 if black] Units - mL/min/1.73m 2 This equation was validated in patients with diabetic kidney disease, renal transplant recipients and African Americans with non-diabetic kidney disease Publications; Disability Loans & Grants; Kidney GFR Chart by Age and CKD Stages Table. Author: Disabled World: Contact: www.disabled-world.com Published: 2019-01-14: (Rev. 2019-12-01) Synopsis and Key Points: Chart of Kidney Glomerular Filtration Rate (GFR) number according to your age, includes table showing chronic kidney disease (CKD) stages GFR is the best measure of kidney function but both creatinine and GFR can be useful indicators of your kidney health. If GFR goes down, it's a bad sign. If creatinine goes up, it's a bad sign. In general, a good GFR number is above 60 and a good creatinine number is below 1.2 Please use one of the following formats to cite this article in your essay, paper or report: APA. Thomas, Liji. (2019, February 26). Contrôle (GFR) de débit de filtration glomérulaire

The adoption of the automatic reporting of MDRD-eGFR has been widely criticised. The most commonly used formula is the 4-variable MDRD, which estimates GFR using four variables: serum creatinine, age, ethnicity, and gender Enheten för relativ GFR är mL/min/1,73 m 2. Barn uppnår vuxennivåer på GFR mellan 1 och 2 års ålder [1]. Absolut GFR (ej kroppsytenormaliserat) används vid dosering av vissa toxiska läkemedel som utsöndras via njurarna genom glomerulär filtration. Enheten för absolut GFR är mL/min och det finns inget referensintervall angivet

- The MDRD equation is used in estimating GFR in stable chronic kidney disease and cannot be used in acute renal failure. Compared to other methods of estimating GFR, the one in question has been validated and shows better correlation than other equations such as the Cockcroft-Gault formula. Example of an eGFR calculatio
- Accuracy of the CKD-EPI and MDRD equations to estimate GFR for the validation data set (N=3896). Both panels show the difference between measured and estimated (y-axis) vs. estimated GFR (x-axis). A smoothed regression line is shown with the 95% CI for the distribution of results, using quantile regression, excluding the lowest and highest 2.5% of estimated GFR
- This formula may not be accurate when used in children, elderly patients, specific ethnic groups, pregnant women, those with unusual muscle mass, body habitus, and weight (eg, morbid obesity, amputees) and patients with a normal GFR.

Use the eGFR value calculated by your local laboratory in preference to the above as it is likely to be more accurate (as it may adjust for variations in creatinine measurements). Calculator above uses the abbreviated MDRD equation: Estimated GFR (ml/min/1.73m 2) = 186 x (Creat / 88.4)-1.154 x (Age)-0.203 x (0.742 if female) x (1.210 if black It was clear, therefore, that a more refined approach to eGFR calculation was needed and this is where MDRD and CKD-EPI came in. MDRD was a spinoff from the original MDRD trial - which was negative in showing any effect of low protein intake or intensive BP lowering, but left a lasting legacy stemming from the measurement of nuclear GFR in all participants GFR in mL/min per 1.73 m 2 = 175 x SerumCr-1.154 x age-0.203 x 1.212 (if patient is black) x 0.742 (if female). Notes: The original Modification of Diet in Renal Disease (MDRD) equation was based on 6 variables: age, sex, ethnicity, serum creatinine, urea, and albumin (often referred to as MDRD 6).Subsequently, the MDR was simplified to a 4-variable version (MDRD-4) that included age, sex.

MDRD GFR. The MDRD GFR is an estimate of the glomerular filtration rate (GFR) using serum creatinine and demographic factors. It has not been studied extensively in populations that are not white or black. It relies on a stable creatinine and may be less accurate for GFR values above 60. Nephromatic uses the simplified MDRD equation by Levey. * Estimated GFR Calculation is Switched from the MDRD to the CKD-EPI Equation*. See the full memo contents.. Background. On June 1, 2020, the laboratories at UWMC, HMC, NWH, and SCCA will begin using the Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) equation to calculate estimated glomerular filtration rate (eGFR)

Abbreviated MDRD formula. Using abbreviated MDRD formula eGFR is also calculated from age, sex and ethnicity as well as serum creatinine. The basic function to return its value is mdrd() which takes creatinine in either µmol/l (by default) or mg/dl, age in years, sex as 0 for female or 1 for male, and ethnicity as black or non-black.The units parameter defines the units used for serum. The MDRD study equation is widely used, but it underestimates GFR at higher levels, thereby overestimating the prevalence of CKD. The CKD-EPI creatinine equation improves on these limitations for adults of all ages, and the Kidney Disease: Improving Global Outcomes (KDIGO) 2012 guidelines on the evaluation and management of CKD recommends reporting eGFR from creatinine ( 3 - 5 ) eGFR in normal range (60-89) with other signs of kidney damage, like protein in urine or physical damage to the kidneys. eGFR 30-59, moderate kidney damage. eGFR 15-29, severe kidney damage. eGFR less than 15, the kidneys are close to failure or have already faile An eGFR blood test that ranges between 60 and 90 indicates healthy kidney function. However, if the eGFR blood test range is below 60, it reveals the possibility of a kidney disease. In fact, if your report shows a low eGFR blood test in the range of 60 to 20, you should seek medical help immediately for kidney malfunction or kidney disorders eGFR by MDRD or Cockcroft-Gault equation equations. However we used the traditional 24 hour urine collection to calculate creatinine clearance and compare it wit

Aim: To compare eGFR using three commonly used Formulae {Modification of Diet in Renal Disease Study Equation (MDRD 2006), Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI 2009) and Cockcroft-Gault Formula} with 24 hour creatinine clearance and to identify which amongst the 3 formulae for eGFR closely correlates with 24 hour creatinine clearance in a secondary care hospital CKD EPI & MDRD GFR Calculator - (With SI Units) 4 variable MDRD CKD EPI Equation (with SI Units) using standardized serum creatinine, age, race, gender. by Stephen Z. Fadem, M.D., FACP, FASN. Beta version - currently under revie ** The estimated glomerular filtration rate ( eGFR) is used to screen for and detect early kidney damage, to help diagnose chronic kidney disease (CKD), and to monitor kidney status**.. The National Kidney Disease Education Program, American Society of Nephrology, and the National Kidney Foundation all recommend that an

- Estimated GFR (eGFR) using Modification of Diet in Renal Disease (MDRD) formula. The most recently advocated formula for calculating the GFR is the one that was developed by the Modification of Diet in Renal Disease Study Group.Most laboratories in Australia, and The United Kingdom now calculate and report the MDRD estimated GFR along with creatinine measurements and this forms the basis of.
- MDRD STUDY EQUATION: mdrd. BIS1 GFR: bis1. BIS2 GFR: bis2 (Age, Race, Gender, Plasma creatinine,Serum cystatin C) Chronic kidney disease (GFR less than 60 or kidney damage for at least three months) MDRD GFR EPI GFR CYSTATIN GFR EPI CYSTATIN GFR BIS1 GFR BIS2 GFR *All ethnic groups other than African America
- คำนวณ GFR (Glomerular Filtration Rate) คำนวณ GFR : CKD-EPI formula; คำนวณ GFR : Cockcroft-Gault formula; คำนวณ GFR : MDRD formula; คำนวณ GPA เกรดเฉลี่ย; คำนวณ MAP (Mean Arterial Pressure) คำนวณ Wacoal's Size; คำนวณ ทรงกล
- The Creatinine Clearance (Cockcroft-Gault Equation) predicts Creatinine Clearance from serum Creatinine
- För att förbättra precisionen kan njurfunktionen i form av estimerat GFR ofta skattas med hjälp av olika formler baserade på plasmakoncentrationen av kreatinin eller cystatin C. Inom Landstinget i Kalmar svaras därför för varje beställt P-kreatinin även ett värde för estimerat GFR som beräknas utifrån s.k.MDRD-formeln
- MDRD GFR Calculator (with SI Units) by Stephen Z. Fadem, M.D., FACP, FASN. Plasma creatinine mg/dL umol/L: Age: Race: African American White* Gender: Male Female: GFR value: (Age, Race, Gender Plasma creatinine) *All ethnic groups other than African America

GFR Calculator. The GFR (glomerular filtration rate) Calculator estimates GFR values based on factors including serum creatinine value, age, race, and gender. For comparison purposes, the results for three prevalent formulas used for estimating GFR are provided. GFR Calculator for Adults. This calculator is for people aged 18 years or older Please fill in the following data. Cockcroft-Gault Calculator (with SI Units) Plasma creatinine (PCR) mg/dL umol/L Weight (wt GFR is the most useful test of overall kidney function and we have a separate section on measuring renal function. However because it is not straightforward to measure GFR directly, most of the time we use estimated GFR, eGFR, to give an approximate idea of how good kidney function is. MDRD * The eGFR calculator uses the latest equation in renal function, the CKD-EPI to estimate the rate of glomerular filtration (given patient age, gender, race and serum creatinine level)*. The estimation can be used on adult patients and is deemed to be more accurate than the MDRD equation

eGFR by MDRD Equation In adults, the most widely-used equations for estimating glomerular filtration rate (GFR) from serum creatinine are the Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) equation 1 and the isotope dilution mass spectrometry (IDMS) traceable Modification of Diet in Renal Disease (MDRD) Study equation 2 Shows eGFR at the day 90 visit, calculated using the serum creatinine result in row 5 and the 4-variable MDRD equation, which is also IDMS-traceable. Rows 7-8: Show serum creatinine and eGFR results from a confirmatory visit 14 days after day 90 Modification of Diet in Renal Disease (MDRD) GFR Definition. Renal disease requires the precise management of glomerular filtration rate, and failing to account for the dietary factors that influence this rate can be disastrous. Protein intake, supplemental use and medication can alter glomerular filtration rate, or GFR.Using the latest blood sampling technology and our GFR calculator can.

- The estimation of glomerular filtration rate (GFR) has relied upon the use of mathematical equations primarily based upon the measurement of serum creatinine and other parameters such as age, body weight, gender, and ethnicity. In 2009, the Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) published a new equation that uses similar variables as the MDRD Stud
- GFR Calculators: Serum Creatinine and Cystatin C www.
**mdrd**.com Aurell M, Samuelsson O. Njurmedicin, 4:e upplagan. Akut och kronisk njurinsufficiens Uptodate.com - Diagnostic approach to the patient with acute kidney injury (acute renal failure) or chronic kidney disease KDIGO Clinical Practice Guideline for Acute Kidney Injury. 2012. KDIG - Differences between GFR Estimates using Cockcroft and Gault and MDRD Equations: Implications for Drug Dosing Aims Conclusions Background Grant McBride1 and Graham RD Jones2 Southern.IML Pathology, Wollongong, NSW, Australia1 and Department of Chemical Pathology, St Vincent's Hospital, Sydney, NSW, Australia2 Patient Demographic
- Risk prediction improved with eGFR(CKD-EPI); NRI was 0.21 for all-cause mortality (p < 0.001) and 0.22 for CVD mortality (p < 0.001). CONCLUSIONS: eGFR(CKD-EPI) categories improve mortality risk stratification of individuals in the US population. If eGFR(CKD-EPI) replaces eGFR(MDRD) in the US, it will likely improve risk stratification
- Download GFR Calculator (MDRD & CKD) and enjoy it on your iPhone, iPad, and iPod touch. Glomerular Filtration Rate Calculator is a simple app that provides medical professionals with an elegant, highly efficient, and easy way to estimate glomerular filtration rate using the: · MDRD Study Formula · CKD Epidemiology Group Formula (2009) US and SI units supported
- GFR is Glomerular Filtration Rate and it is a key indicator of renal function. eGFR is estimated GFR and is a mathematically derived entity based on a patient's serum creatinine level, age, sex and race. This is usually calculated by the laboratory analysing the blood sample and reported along with the serum creatinine result. A number of recognised and well-validated formula

* The relationships generally persisted after statistically controlling for reported efforts to restrict diets*. Compared with patients with GFR > 37 mL/min/1.73 m2, the means of several nutritional parameters were significantly lower for GFR between 21 and 37 mL/min/1.73 m2, and lower still for GFRs under 21 mL/min/1.73 m2 Results Bias compared with measured GFR (mGFR) varied for each equation depending on clinical presentation. The CKD-EPI equation demonstrated less bias than the MDRD equation in potential kidney donors (−8% versus −18%) and postnephrectomy donors (−7% versus −15%). However, the CKD-EPI equation was slightly more biased than the MDRD equation in native CKD patients (6% versus 3%. eGFR. Research Group. Year of Publi-cation. Study Population Number of subjects (development, validation) Assays. Equation. Advantages. References. Creatinine. eGFRcr. MDRD Study. 1999. CKD 1628 (1628, 0) Non-standardized. MDRD Study creatinine 1999. Recommended by NKF-KDOQI 2002. Levey et al. Ann Intern Med 1999; 130: 461-70; MDRD Study. 2006. (eGFR), along with values for serum creatinine, when serum creatinine is measured.7 The eGFR should be based on the abbreviated Modification of Diet in Renal Disease (MDRD) study equation5,6 that adjusts for body sur-Estimated Glomerular Filtration Rate (eGFR) in the Detection and Assessment of Chronic Kidney Disease in Adults Table 1 GFR was furthermore calculated using six estimating formulae, Cockcroft-Gault formula [25], the modification of diet in renal disease (MDRD) equations using 4 and 6 variables [26, 27], and Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) equations using creatinine alone (CKD-EPI Cr) [28], CysC alone (CKD-EPI CysC), or both CKD-EPI (Cr-CysC) [29] (Table 1)

The revised Lund-Malmö GFR estimating equation outperforms MDRD and CKD-EPI across GFR, age and BMI intervals in a large Swedish population. Clin Chem Lab Med. 2014;52(6):815-24. Björk J, Bäck SE, Ebert N, et al. GFR estimation based on standardized creatinine and cystatin C: a European multicenter analysis in older adults The MDRD equation has performed well in patients with chronic kidney disease. However, it underestimates the GFR in healthy patients with GFR greater than 60 mL/min. (11) The MDRD equation is: eGFR = 175 x (SCr)-1.154 x (age)-0.203 x 0.742 [if female] x 1.212 [if Black] where: eGFR = estimated glomerular filtration rate in mL/min/1.73 m GFR is measured in mL/min/1.73m 2. In case of children it is used the Schwartz formula: - The GFR = 0.41 * Height(in cm) / S Cr. When the child's height is expressed in inches, the height should be converted from inches to centimeters: 1 inch = 2.54 cm. Related to the optimal GFR level, the 60mL/min/1.73m 2 level is adequate

** * MDRD estimates GFR based on age, race, sex, and serum creatinine**. Screening and monitoring HIV-positive people for CKD. Using the 4-parameter MDRD equation, we compared the eGFR calculated from creatinine values obtained by various field methods between 2006 and 2011 För att beräkna GFR utgående från p-kreatinin användes ofta den s k Cockroft-Gault- (CG) eller MDRD-formeln i vilken man förutom p-kreatinin också behöver införa uppgifter om patientens kön, ålder, ras och (för CG) vikt. För beräkning av GFR enligt CG (ml/min) s HRVATSKI LIJEČNIČKI ZBOR | HRVATSKO DRUŠTVO RADIOLOGA. Šubićeva 9, HR-10000 Zagreb. Telefon: +385 (0)1 469 3300 | Telefaks: +385 (0)1 465 506

eGFR calculator. eGFR stands for estimated Glomerular Filtration Rate. eGFR is calculated from blood test results using a formula that looks at the level of creatinine (a waste product) in your blood. Results consistently below 60mL/min/1.73m2 indicate chronic kidney disease. eGFR can also be calculated by using the eGFR calculator below MDRD 4 vs. MDRD 6 Variable Results: The MDRD 4 variable is the most common eGFR formula used in clinical practice. However, given the broad range of clinicians that use these calculators for various reasons, the additional results for the MDRD 6 variable are provided since it is also another common equation also evaluated in the original MDRD study MDRD GFR Calculator (Extended Version) Plasma creatinine (PCR) mg/dL umol/L: Serum Urea Nitrogen (SUN) mg/dL mmol/L: Serum Albumin (ALB) g/dL g/L: Age: Race: African-American All other races Gende From the National Kidney Foundation (NKF), this application allows medical professionals to estimate kidney function using five separate eGFR calculators: -CKD-EPI Creatinine 2009 Equation (Preferred method) -MDRD Study Equation -Cockcroft-Gault Formula -CKD-EPI Cystatin and Creatinine 2012 Equation -Revised Bedside Schwartz Formula (For ages 1-17) Also includes information on: -Glomerular. You can calculate eGFR using 4 equations. CKD-EPI Creatinine CKD-EPI Cystatin C CKD-EPI Creatinine-Cystatin C MDRD

Reporting of MDRD eGFR helps to identify chronic kidney disease early, and may signal when drug dosage adjustments are necessary. For most drugs prescribed in primary care and for most patients of average age and body size, dosage adjustments based on MDRD eGFR should be similar to those based on creatinine clearance MDRD:n kaava: eGFR = 186 x serum creatinine µmol/l-1.154 x age-0.203 x 1.212 if Black x 0.742 if female Uusin laskukaava CKD-EPI arvioi erinomaisesti munuaisfunktiota GFR:n ollessa > 60 ml/min «Levey AS, Stevens LA, Schmid CH ym Download eGFR Calculators and enjoy it on your iPhone, iPad, and iPod touch. From the National Kidney Foundation (NKF), this application allows medical professionals to estimate kidney function using five separate eGFR calculators: -CKD-EPI Creatinine 2009 Equation (Preferred method) -MDRD Study Equation -Cockcroft-Gault Formula -CKD-EPI Cystatin and Creatinine 2012 Equat The eGFR MDRD, eGFR C-G and eGFR CKD-EPI significantly correlated with CCT, with a slightly stronger correlation with eGFR CKD-EPI (r = 0.616, 0.601 and 0.621, respectively) GFR, but also in muscle mass, across the life span. There is evidence suggesting that both MDRD and CKD-EPI may overestimate GFR not only among elderly but also among young adults [10, 12]. Furthermore, the difference in the structure of the equations means that LM Revised, as opposed to MDRD and CKD-EPI, can also be applied among children [17]

Hence, it requires a small but meaningful up-adjustment, which can be traced back to the introduction of the Modification of Diet in Renal Disease (MDRD) study equation in 1999 (Ann Intern Med. Normal GFR: >60 mL/Min. Moderately decreased GFR: 30-59 mL/Min. Severely decreased GFR: 15-29 mL/Min. Kidney failure (or Dialysis): <15 mL/Min. MDRD equation for calculated GFR has not been validated for use with the elderly (over 70 years of age.) GFR estimating equations have poorer agreement with measured GFR for ill hospitalized patients