Creatinine with Estimated Glomerular Filtration Rate
(eGFR)

Sample type:

Serum (preferred) or plasma heparin.

Uses:

The test helps in knowing how the kidneys function.

The estimated glomerular filtration rate (eGFR) provides an assessment of the filtering capacity of the kidney.

Pecuations :

Maintain specimen at room temperature.

Interfering factors:

Muscle mass affects the test accuracy.

Preanalytical errors:

Collect the sample on the wrong tube.

Corrective action:

Collecting the sample on the right tube.

Postanalytical errors:

Losing the data of the patient.

Corrective action:

Never lose the data of the patient and having soft and hard copies of the report.

Referance range :

eGFR of 90 or higher is in the normal range

eGFR of 60 -89 may mean early kidney disease

eGFR of 15 -59 may mean kidney disease

eGFR below 15 may mean kidney failure