40 results
Metabolic Alkalosis - Urinary Chloride Algorithm
Cl- responsive metabolic alkalosis
 • Kidney loss of Cl-
Metabolic Alkalosis ... sodium is typically ... the excretion of sodium ... #Algorithm #nephrology ... #differential #diagnosis
Primary Metabolic Alkalosis - Differential Diagnosis Algorithm
Volume Depleted 2° hyperaldosteronism
 • Low Urine Cl-: Vomiting, NGT
Primary Metabolic Alkalosis ... - Differential Diagnosis ... hyperaldosteronism • Low Urine ... (late) • High Urine ... #Algorithm #nephrology
Primary Metabolic Alkalosis - Differential Diagnosis Algorithm
Volume Depleted - 2° hyperaldosteronism
 • Low Urine Cl-: Vomiting,
Primary Metabolic Alkalosis ... - Differential Diagnosis ... hyperaldosteronism • Low Urine ... (late) • High Urine ... #Algorithm #Nephrology
True Hyponatremia Differential Algorithm

Instead (or in addition) of volume status examination, check urine sodium and serum
sodium and serum ... sodium low, uric ... sodium high and ... Differential #Algorithm #Diagnosis ... #Nephrology
Fractional Excretion of Sodium - FENa
Fractional Excretion of Sodium (FENa) = (Urine Na+ x Serum Cr)
Fractional Excretion of Sodium ... (FENa) = (Urine ... / (Serum Na+ x Urine ... #nephrology #calculation ... #diagnosis
Hyponatremia Differential Diagnosis Algorithm - Utilizing Uric Acid 
ADH promotes Urea/uric acid excretion along with water
Hyponatremia Differential Diagnosis ... Osmolarity 2) Urine ... Osmolarity 3) Urine ... Sodium 4) Serum ... #Algorithm #nephrology
General approach to AKI - Checklist

Urine electrolytes & FENa - Previously, it was believed that urine
- Checklist Urine ... sodium excretion ... fractional excretion of sodium ... performance for diagnosing ... AcuteKidneyInjury #Nephrology
Approach to Elevated Bicarbonate (HCO3)
Risk Factors for Hypercapnea? (Hx of COPD, OSA, sedative use, CNS/muscular disorders?)
(+)
Likely Metabolic Alkalosis ... Urine CI < 20 ... Volume Contraction Urine ... Cl > 20 (Saline ... #algorithm #diagnosis
Inherited Defects in Kidney Tubule Epithelial Cells

Renal glucosuria - Na+-dependent glucose cotransporter
Cystinuria - Amino acid transporter
Bartter
syndrome - Na-K-2Cl ... cell epithelial sodium ... of epithelial sodium ... Defects #Kidney #Nephrology ... #Diagnosis #Differential
Hyponatremia Differential Diagnosis Table

 • Step 1: Correct for hyperglycemia. Corrected Na = [(glucose - 100)/
Hyponatremia Differential Diagnosis ... Serum Osm • Urine ... #Differential #Diagnosis ... #Table #nephrology ... #sodium