SMH Nephrology Resident Resources Portal
Welcome to St. Michael's Hospital Nephrology
We're delighted to have you join our nephrology team at St. Michael's Hospital. To help you get started and make the most of your rotation, we've assembled these essential educational resources.
Below you'll find a collection of interactive presentations covering key aspects of nephrology care, from basic concepts to specific treatment modalities. We recommend starting with our welcome presentation, which includes audio narration to guide you through the fundamentals. The Housestaff Manual provides comprehensive reference material that you can consult throughout your rotation.
Housestaff Manual
Fractional Excretion of Sodium (FENa)
About this Calculator
Possible Interpretation of Results
FENa < 1%: This typically indicates a prerenal cause of acute kidney injury, where the kidneys are conserving sodium due to decreased blood flow or volume depletion. Common causes include dehydration, heart failure, or cirrhosis.
FENa 1-2%: This range can be seen in both prerenal and intrinsic renal conditions, and further clinical correlation is needed to determine the underlying cause.
FENa > 2%: This suggests an intrinsic renal cause of acute kidney injury, where the kidneys are unable to reabsorb sodium effectively. Common causes include acute tubular necrosis, interstitial nephritis, or glomerulonephritis.
Creatinine clearance estimate by Cockcroft-Gault equation in adults and older adolescents (age ≥16 years) (SI units)
About this Calculator
The Creatinine Clearance calculator using the Cockcroft-Gault equation is a valuable tool for estimating kidney function in adults and older adolescents (age ≥16 years). This calculator provides an estimate of creatinine clearance, which is an important indicator of renal function. It takes into account age, weight, sex, and serum creatinine levels to produce an estimate of creatinine clearance in mL/min.
The Cockcroft-Gault equation used in this calculator is:
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