Glomerular filtration rate

Glomerular filtration rate (GFR) is the best overall index of kidney function. 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 (2021) to estimate GFR. More information regarding this recommendation may be found Choosing "No" will calculate an indexed eGFR value, standardized to a body surface area of 1.73m 2 (units: mL/min/1.73m 2) • Assessment for CKD staging and CKD progression should generally be assessed using the indexed eGFR value. Choosing "Yes" will bring up fields to input height and weight. A non-indexed eGFR value (i.e. adjusted for the patient's body surface area) will be calculated (units: mL/min). • Drug dosing decisions should generally be based on non-indexed eGFR value. • Exception: Using non-indexed eGFR in morbidly obese patients can result in a large overestimate of measured GFR and potential for overdosing. Height: Inches Centimeters Weight: Pounds Kilograms 300 mg/g 30 mg/mmol Based on the information supplied: GFR category is:‡ see note below ACR category is:** CKD classification is: Risk of progression is: Frequency of monitoring should be: Referral to a nephrologist is: In the absence of evidence of kidney damage, neither GFR category G1 nor G2 fulfill the criteria for CKD. † Neither the category of GFR nor the category of albuminuria alone can fully capture prognosis of CKD. Persistent and increased albuminuria has been shown to be an ind...

What is a glomerular filtration rate test? Your kidneys are your body’s main filtration system. They remove waste products from your blood and excrete them via your urine. Glomeruli are the small filters inside your kidneys. If your kidneys aren’t working properly, your glomeruli won’t filter as efficiently. Your doctor may order a glomerular filtration rate (GFR) test if they suspect your kidneys aren’t working properly. This is a simple blood test. The GFR test can indicate how well your kidneys are functioning. Your doctor may order the test if you have symptoms related to kidney disease or if they want to test the effectiveness of a particular treatment. According to the • unexplained body swelling • foamy urine • difficulty urinating • mid-back pain Early intervention is vital to preventing further kidney damage. Your doctor may recommend a GFR test if you’re taking medications that can affect your kidney function or if you have any of the following conditions: • diabetes • recurring urinary tract infections • hypertension • heart disease • difficulty with urination • blood in the urine • kidney stones • polycystic kidney disease • kidney failure If you’ve been diagnosed with kidney disease, the GFR test can help determine how well your kidneys are functioning. If you have a family history of kidney disease, your doctor may want to run a GFR test to get a sense of the current state of your kidneys. A GFR test is a simple blood test that doesn’t require you to do anyth...

What is eGFR? eGFR (estimated glomerular filtration rate) is a measure of how well your kidneys are working. Your eGFR is an estimated number based on a blood test and your age, sex, body type and race. eGFR is considered a mostly reliable test for doctors to know how well your kidneys are working. However, the eGFR may not be accurate if you are younger than 18, pregnant, very overweight or very muscular. In addition, other tests such as an ultrasound or a Please note: eGFR is an estimate of how well your kidneys are working. How do I find out my eGFR? You will have a blood test to see how much creatinine is in your blood. Creatinine is a waste product in your blood that comes from your muscles. Healthy kidneys take creatinine out of your blood and send it out of your body through your urine. If your kidneys are not working the way they should, creatinine will build up in your blood. The eGFR test report will give a number that will tell doctors the amount of creatinine in your blood. You will also get a lab report that will contain this number. Be sure to talk to your doctor about what your results mean for you. Can my eGFR change? Your eGFR can change over time and can change based on some other problems, like if you have not been drinking enough water. As chronic kidney disease gets worse, your eGFR number will go down. If caught early, healthy life changes like following a kidney-friendly eating plan and getting enough exercise may help slow down the progression of CK...