glomerularfiltrationrate

What is glomerular filtration rate?


Blood is drawn from a vein, usually from the inside of the elbow or the back of the hand. The site is cleaned with germ-killing medicine (antiseptic). The health care provider wraps an elastic band around the upper arm to apply pressure to the area and make the vein swell with blood.

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Also known as gfr, egfr, estimated gfr, Glomerular Filtration Rates, gfr, estimated gfr
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glomerular filtration rate information from trusted sources:

Glomerular filtration rate

Glomerular filtration rate (GFR) is a test used to check how well the kidneys are working. Specifically, it estimates how much blood passes through the tiny filters in the kidneys, called glomeruli, each minute. See also: Creatinine - clearance Creatinine - serum Creatinine - urine

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GFR

To assess kidney function

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Glofil-125

GLOFIL-125 (Sodium Iothalamate I-125 Injection) is indicated for evaluation of glomerular filtration in the diagnosis or monitoring of patients with renal disease.

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Glofil-125

GLOFIL-125 (Sodium Iothalamate I-125 Injection) is a sterile, nonpyrogenic aqueous injection containing approximately 1 mg sodium iothalamate per mL, and 0.9 percent benzyl alcohol as a preservative. The radioactive concentration of the material is 250-300 μCi/mL as of the calibration date. Sodium bicarbonate and hydrochloric acid are present for pH adjustment. GLOFIL-125 (Sodium Iothalamate I-125 Injection) is indicated for evaluation of glomerular filtration in the diagnosis or monitoring of patients with renal disease.

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Glomerulonephritis

Glomerulonephritis (glo-mer-u-lo-nuh-FRI-tis) is a type of kidney disease that damages your kidneys' ability to remove waste and excess fluids. Also called glomerular disease, glomerulonephritis can be acute a sudden attack of inflammation or chronic coming on gradually.

Read more on www.mayoclinic.com

Glomerulonephritis

Glomerulonephritis is not usually preventable. Early detection and treatment, particularly for those who have conditions that are linked to glomerulonephritis, such as kidney or liver disease, are important in order to avoid other complications developing.

Read more on www.nhs.uk

National Kidney Foundation: Glomerular Filtration Rate (GFR)

GFR - glomerular filtration rate is the best test to measure your level of kidney ... If your GFR falls below 30 you will need to see a kidney disease ...

Read more on www.kidney.org

Renal function - Wikipedia, the free encyclopedia

Glomerular filtration rate (GFR) is the volume of fluid filtered from the renal (kidney) glomerular capillaries into the Bowman's capsule per unit time. ...

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GFR Calculators - NKDEP

GFR calculators for adults and children, provided by NKDEP.

Read more on www.nkdep.nih.gov

MDRD GFR - Nephron

Chronic kidney disease (GFR less than 60 or kidney damage for at least three ... A simplified equation to predict glomerular filtration rate from serum ...

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Contents

Considerations
The creatinine clearance test, which involves a 24-hour urine collection, can also provide an estimate of kidney function. However, this method is not always accurate.

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How the Test Will Feel
When the needle is inserted to draw blood, some people feel moderate pain, while others feel only a prick or stinging sensation. Afterward, there might be some throbbing.

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How to Prepare for the Test
Certain drugs can interfere with test results. Tell your doctor about all medicines you are taking, including over-the-counter ones.

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Indications
The GFR test measures how well your kidneys are filtering a waste called creatinine, which is produced by the muscles. When the kidneys aren't working as well as they should, creatinine builds up in the blood.

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Normal Results
According to the National Kidney Foundation, normal results range from 90 - 120 mL/min. Older people will have lower normal GFR levels, because GFR decreases with age.

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Risks
Veins and arteries vary in size from one patient to another and from one side of the body to the other. Obtaining a blood sample from some people may be more difficult than from others.

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What Abnormal Results Mean
Levels below 60 mL/min for 3 or more months are a sign of chronic kidney disease. Those with GFR results below 15 mL/min are a sign of kidney failure.

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