184 results
Fractional Excretion of Sodium - FENa
Fractional Excretion of Sodium (FENa) = (Urine Na+ x Serum Cr)
Fractional Excretion ... FENa Fractional Excretion ... < 1% suggests prerenal ... FENA #Fractional #Excretion
Fractional Excretion of Urea - FEurea
Fractional Excretion of Urea (FEurea) = (Urine Urea x Serum Cr)
Fractional Excretion ... FEurea Fractional Excretion ... < 35% suggests prerenal ... #Fractional #Excretion
Prerenal Acute Kidney Injury - Diagnostic Schema

Hypovolemia 
Hypervolemia 
Hypotension 
Vessels 

#Prerenal #Acute #Kidney #Injury #AKI #Diagnosis
Prerenal Acute Kidney ... Vessels #Prerenal
Causes of Hyperkalemia - Differential Diagnosis Algorithm
 • Increased Intake
 • Reduced Excretion (IV potassium with
Intake • Reduced Excretion ... potassium with reduced excretion
Hypophosphatemia - Measurement of urine phosphate excretion - Differential Diagnosis Algorithm
 • GI loss
 • Redistribution
urine phosphate excretion ... urinary #phosphate #excretion
Hyperkalemia - Differential Diagnosis - Impaired Excretion vs Redistribution

Impaired Urinary Excretion 
 - Renal failure
 -
Diagnosis - Impaired Excretion ... Impaired Urinary Excretion
General approach to AKI - Checklist

Urine electrolytes & FENa - Previously, it was believed that urine
that urine sodium excretion ... and fractional excretion
Here’s a review of the Renin-Angiotensin-Aldosterone system (RAAS)

This is a very common pathway that clinicians should
system ends with excreting ... reversed result of excreting ... of the sodium excretion
Causes of Acute Kidney Injury ( AKI ) - Prerenal, Renal, and Postrenal

PRE-RENAL 
Impaired perfusion: 
•
Injury ( AKI ) - Prerenal ... Kidney #Injury #Prerenal
Diuretic Electrolyte Excretion Effects 
Diuresis, Na+, K+, Mg2+, Ca2+, Cl-, HCO3-, Uric Acid
 - Thiazide Type
Diuretic Electrolyte Excretion