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Creatinine and eGFR

Creatinine

Result type: Quantitative

Creatinine is a waste product produced by your muscles. Your kidneys filter and remove creatinine from the blood and release it into your urine. The amount of creatinine produced depends on your size and muscle mass.

Result ranges

HighNormal
The creatinine test result is within the high range. This can be as a result of dehydration, fasting, or if the patient recently consumed a high intake of certain supplements. Sometimes a high creatinine level can be a sign that the kidneys might be damaged. There is also a small possibility that breakdown of the sample might have occured before it could be processed by the lab, meaning that this result is incorrect. This test result should be shared with the patient’s doctor.The creatinine test result is within the normal range. This test result should be shared with your doctor.

eGFR

Result type: Quantitative

The calculations used to get the eGFR test results are based on scientific studies carried out on a large number of people. Based on these studies, different calculations must be used for African Americans and non African Americans to get an accurate result. This result can indicate how well a patient’s kidneys are working. It is important to read the test result specific to the patient’s race, as the calculation includes age, gender, and race. Sometimes a low eGFR can be a sign that the kidneys are not working as well as expected. There are many things that can impact this result so repeat testing may be required. The patient should share this result with their doctor.

The following rates apply to the results:

NormalLowFollow-up
eGFR is a result above 60 ml/min/1.73m2eGFR is a result below 60 ml/min/1.73m2eGFR result between 60ml/min/1.73m2 and 90ml/min/1.73m2

Result ranges

LowNormal
The eGFR: Glomerular filtration rate test result is LOW.The eGFR: Glomerular filtration rate test result is NORMAL.