8 results
Fractional Excretion of Sodium - FENa
Fractional Excretion of Sodium (FENa) = (Urine Na+ x Serum Cr)
Sodium (FENa) = (Urine ... / (Serum Na+ x Urine ... - Strong Medicine ... #Sodium #nephrology ... #calculation #diagnosis
Causes of Polyuria - Differential Diagnosis
Excess Intake of Water:
 • Primary polydipsia (a.k.a. "psychogenic polydipsia")
 •
- Differential Diagnosis ... Mimics (↑ urine ... frequency without ↑ urine ... - Strong Medicine ... #Causes #nephrology
Distal Renal Tubular Acidosis (RTA)  Type 1 

Totally scuppers the kidney's acidification mechanism. Will be
much easier to diagnosis ... with direct urine ... Failure to acidify urine ... impaired NH4+ secretion ... #Management #Nephrology
Fractional Excretion of Urea - FEurea
Fractional Excretion of Urea (FEurea) = (Urine Urea x Serum Cr)
Urea (FEurea) = (Urine ... (Serum Urea x Urine ... - Strong Medicine ... #Urea #FEUrea #nephrology ... #calculation #diagnosis
Metabolic Alkalosis - Urinary Chloride Algorithm
Cl- responsive metabolic alkalosis
 • Kidney loss of Cl-
result of increased excretion ... in the proximal tubule ... result of increased excretion ... #Algorithm #nephrology ... #differential #diagnosis
Rhabdomyolysis - Differential Diagnosis Framework and Management Summary

Causes of Rhabdomyolysis:
 • Trauma:
	- Immobilization
	- Crush injury
	- Compartment
- Differential Diagnosis ... Framework and Management ... Heat injury, Heat stroke ... Weakness - Dark urine ... #treatment #nephrology
Hyperkalemia - Diagnosis and Management - GrepMed Handbook

S/Sx: Most pts asymptomatic. Weakness, cramping, nausea, paresthesias, palpitations,
Hyperkalemia - Diagnosis ... • ↓ Renal K+ Excretion ... lysis) ± Urine ... suggests ↓ renal excretion ... #potassium #nephrology
Gitelman Syndrome Overview

What?
• Inherited (AR) hypokalemic salt-losing tubulopathies affecting the thiazide-sensitive sodium chloride cotransporter
• Gitelman's syndrome
distal convoluted tubule ... Hypocalciuria (spot urine ... Gitelman #Syndrome #diagnosis ... #nephrology #management