What is the lab value for GFR?
A GFR of 60 or higher is in the normal range. A GFR below 60 may mean kidney disease. A GFR of 15 or lower may mean kidney failure.
Should I worry if my GFR is greater than 90?
If there is kidney damage, such as protein in the urine, a result between 60 and 89 may mean early kidney disease. Even a GFR over 90 with protein in the urine is a sign of kidney disease. GFR must remain low for three months for kidney disease to be diagnosed.
What is the best marker of GFR?
Measured glomerular filtration rate (mGFR) via quantification of urinary or plasma clearance of an exogenous filtration marker remains the gold standard for assessing GFR in patients with CKD.
What is normal gFR age?
eGFR gets lower as we age (even when you don’t have kidney disease)
|Age (years)||Average eGFR|
What does it mean if gFR is low?
your gFR number is an estimate of how well your kidneys are working and keeping you healthy. if your gFR number is low, your kidneys are not working as well as they should. early detection will allow for early treatment. early treatment may keep kidney disease from getting worse.
What does 60 mL/min/1.73 m2 mean?
The GFR (glomerular filtration rate) is a formula that uses age, race, gender and serum creatinine level to measure kidney function. Patients who have a GFR less than 60 ml/min/1.73 m2 for three months or more are diagnosed as having CKD. Kidney disease progresses as the number of nephrons (filtering units) diminish.
What does BSA of 1.73 mean?
standardized body surface area
The 1.73 refers to the standardized body surface area(BSA) used to normalize for all variables for an average 70kg man.
What are kidney markers?
Albumin is the most common type of protein in the urine. All patients with CKD should be screened for albuminuria. Persistent increased protein in the urine (two positive tests over 3 or more months) is the principal marker of kidney damage, acting as an early and sensitive marker in many types of kidney disease.
Is GFR 1.73 Good?
Normal GFR varies according to age, sex, and body size; in young adults it is approximately 120 ml/min/1.73 m2 and declines in normal individuals with age.
What does an eGFR of 1.73 mean?
An eGFR of >90 ml/min/1.73m2 is considered normal kidney function. If these patients have evidence of kidney disease* (see below) these patients have CKD stage G1. Patients with an eGFR of 60-90 ml/min/1.73m2 have mildly reduced kidney function which may be appropriate for their age.
What is a good BSA?
Average body surface area for adult women: 1.6 m2. Average body surface area for children (9 years): 1.07 m2. Average body surface area for children (10 years): 1.14 m2. Average body surface area for children (12-13 years): 1.33 m2.
Where does the 1.73 m2 come from?
Where does this all come from? Basically, the simple answer is “arbitary”. The 1.73 refers to the standardized body surface area(BSA) used to normalize for all variables for an average 70kg man.
What is the best indicator of kidney failure?
The GFR is the best overall indicator of the level of kidney function. (NKF grades S, C, and R). The GFR should be estimated using a prediction equation that takes into account the serum creatinine level and some or all of these variables: age, sex, race, and body size.
What is best marker for kidney function?
Glomerular filtration rate (GFR) remains the ideal marker of kidney function. Unfortunately measuring GFR is time consuming and therefore GFR is usually estimated from equations that take into account endogenous filtration markers like serum creatinine (SCr) and cystatin C (CysC).
What is estimated glomerular filtration rate (eGFR)?
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.
What is GFR and why is it important?
GFR – glomerular filtration rate is the best test to measure your level of kidney function and determine your stage of kidney disease. Your doctor can calculate it from the results of your blood creatinine test, your age, body size and gender. Your GFR tells your doctor your stage of kidney disease and helps…
How are estimated GFR results reported?
Estimated GFR results are reported as milliliters/minute/1.73m2 (mL/min/1.73m2). Because some laboratories do not collect information on a patient’s race when the sample is collected for testing, they may report calculated results for both African Americans and non-African Americans.
Why would a doctor order a creatinine and EGFR test?
A creatinine test and eGFR may be ordered when a healthcare practitioner wants to evaluate your kidney function as part of a health checkup or if kidney disease is suspected. Signs and symptoms of kidney disease may include: An eGFR may be repeated if the initial result is abnormal to see if it persists.