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The severity of chronic kidney disease (CKD) is described by six stages; the most severe three are defined by the MDRD-eGFR value, and first three also depend on whether there is other evidence of kidney disease (e.g., proteinuria): 0) Normal kidney function – GFR above 90 mL/min/1.73 m 2 and no proteinuria
The severity of chronic kidney disease (CKD) is described by six stages; the most severe three are defined by the MDRD-eGFR value, and first three also depend on whether there is other evidence of kidney disease (e.g., proteinuria): 0) Normal kidney function – GFR above 90 (mL/min)/(1.73 m 2) and no proteinuria
Two other urinary indices, are the fractional sodium excretion (FENa) index and the renal failure index (RFI). [36] The renal failure index is equal to urine sodium times plasma creatinine divided by urine creatinine. [36] A FENa score greater than 3% or a renal failure index (RFI) greater than 3 are helpful in confirming acute renal failure. [37]
In countries that do not use the CHEM-7 panel, a UEC typically does not include chloride or bicarbonate as standard components, but will often include an estimated glomerular filtration rate (eGFR), and in some laboratories, glucose is also not included but is available as a separate test.
The estimated glomerular filtration rate (eGFR) is a measure of kidney function. [6] Adding a race adjustment to kidney algorithms results in higher eGFR values in people identified as black. [7] [8] [9] Reasons for this vary, but it is thought to partially stem from the notion that Black persons are more muscular. [8]
EGFR may refer to: Epidermal growth factor receptor (EGFR), a transmembrane receptor protein in humans Estimated glomerular filtration rate (eGFR), a measure of renal function
Stage 3: Moderate reduction in GFR (30–59 mL/min/1.73 m 2):. [59] British guidelines distinguish between stage 3A (GFR 45–59) and stage 3B (GFR 30–44) for purposes of screening and referral. [60] Stage 4: Severe reduction in GFR (15–29 mL/min/1.73 m 2) [59] Preparation for kidney replacement therapy.
EGFR signaling cascades Diagram of the EGF receptor highlighting important domains. Epidermal growth factor receptor (EGFR) is a transmembrane protein that is activated by binding of its specific ligands, including epidermal growth factor and transforming growth factor alpha (TGF-α). [7]