23 results
Fractional Excretion of Sodium - FENa
Fractional Excretion of Sodium (FENa) = (Urine Na+ x Serum Cr)
Fractional Excretion of Sodium ... = (Urine Na+ x Serum ... Cr) / (Serum Na ... #nephrology #calculation ... #diagnosis
Hyponatremia Differential Diagnosis Algorithm - Utilizing Uric Acid 
ADH promotes Urea/uric acid excretion along with water
Hyponatremia Differential Diagnosis ... water retention 1) Serum ... Osmolarity 3) Urine Sodium ... 4) Serum Uric Acid ... #Algorithm #nephrology
True Hyponatremia Differential Algorithm

Instead (or in addition) of volume status examination, check urine sodium and serum
examination, check urine sodium ... and serum uric ... acid: - Urine sodium ... Differential #Algorithm #Diagnosis ... #Nephrology
Hyponatremia Differential Diagnosis Table

 • Step 1: Correct for hyperglycemia. Corrected Na = [(glucose - 100)/
Hyponatremia Differential Diagnosis ... repeat BMP • Serum ... #Differential #Diagnosis ... #Table #nephrology ... #sodium
Cerebral Salt Wasting vs SIADH - Pathophysiology 
1) Neurological event
2) Sodium loss from tubules
3) Naturiesis →
Wasting vs SIADH - Pathophysiology ... Neurological event 2) Sodium ... SaltWasting #SIADH #Pathophysiology ... #diagnosis #nephrology
Volume Based Approach to Hyponatremia
Hypovolemic, Serum uric acid >4
 • Urine Na <20: Extra-renal losses
 •
Hyponatremia Hypovolemic, Serum ... wasting Euvolemic, Serum ... Hypervolemic, Serum ... Hyponatremia #algorithm #diagnosis ... #sodium #low #nephrology
Causes of Hypernatremia - Differential Diagnosis Algorithm
Hypernatremia - Excess free water loss, Serum Sodium >145 mmol/L
High
- Differential Diagnosis ... free water loss, Serum ... Sodium >145 mmol ... Hypernatremia #Nephrology ... #Differential #Diagnosis
To improve the usefulness of the serum creatinine concentration as a marker of kidney function, prediction
usefulness of the serum ... in addition to serum ... assistant medical calculation ... #Diagnosis #Nephrology ... EGFR #Equations #Calculation
Gitelman Syndrome Pathophysiology
Gitelman Syndrome is a rare autosomal recessive salt-losing tubulopathy with a prevalence of 1-
Gitelman Syndrome Pathophysiology ... thiazide-sensitive sodium-chloride ... Gitelman #Syndrome #Pathophysiology ... #nephrology #diagnosis
Ascites - Diagnosis and Management Summary
Paracentesis studies: cell count + differential, albumin, protein, culture
 • Serum-ascites-albumin-gradient
Ascites - Diagnosis ... protein, culture • Serum-ascites-albumin-gradient ... (SAAG): > 1.1 g ... cardiac ascites 1) Sodium ... Summary #Hepatology #SAAG