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CertifiedLabsWhat is Estimated Glomerular Filtration Rate (eGFR) Test?
The estimated glomerular filtration rate (eGFR) is a number that estimates how well your kidneys are filtering waste from your blood. It is calculated from a blood test result along with your age and sex. The eGFR is worked out from your blood creatinine level and personal details. It gives a practical measure of kidney function and helps detect and stage kidney disease.
Estimated Glomerular Filtration Rate (eGFR) Test Parameters
Creatinine
A breakdown product that rises when filtering slows or production increases, a core marker of kidney function.
eGFR
An estimate of the kidneys' filtering rate, the standard measure for staging and tracking kidney health.
Estimated Glomerular Filtration Rate (eGFR) Test Preparation
Before the Test
Tell your doctor about all medicines and supplements.
Mention recent heavy exercise or a very high meat intake, as these can temporarily affect the result.
Follow any fasting instructions if part of a larger panel.
During the Test
A trained Orange Health Labs professional will collect your sample during the visit.
Follow the instructions given to you at the time of collection.
The sample is labelled and sent to the laboratory for testing.
Let the collection team know if you feel unwell during the procedure.
Why Take the Estimated Glomerular Filtration Rate (eGFR) Test?
It is recommended:
To check how well your kidneys are working.
To detect kidney disease early.
To monitor known kidney disease over time.
To guide safe dosing of certain medicines that the kidneys clear.
When your doctor wants to check kidney function. Often part of a routine blood panel.
FAQs on Estimated Glomerular Filtration Rate (eGFR)
The eGFR is worked out from your blood creatinine level and personal details. It gives a practical measure of kidney function and helps detect and stage kidney disease.
It is done to check how well your kidneys are working, detect kidney disease early, monitor known kidney disease over time, and guide safe dosing of certain medicines that the kidneys clear.
Follow any fasting instructions if part of a larger panel.
A trained Orange Health Labs professional will collect the required sample during your visit, following standard procedure.
When your doctor wants to check kidney function. Often part of a routine blood panel.
Results outside the normal range can point to the conditions this test is used to detect or monitor. Your doctor will interpret your results along with your symptoms and any other tests.
Share your report with your doctor, especially if your results are abnormal or your symptoms continue, so they can advise you on the next steps.
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