10 results
Fractional Excretion of Sodium - FENa
Fractional Excretion of Sodium (FENa) = (Urine Na+ x Serum Cr)
) = (Urine Na+ x ... / (Serum Na+ x Urine ... - Strong Medicine ... #Sodium #nephrology ... #calculation #diagnosis
Polyuria - Differential Diagnosis Algorithm
Polyuria = >3L Urine output / 24 hours
Urine osmolality = 2 (Na
Diagnosis Algorithm ... 2 (Na meq/L + K ... nutrition), Azotemia LOW ... #Differential #Diagnosis ... #Algorithm #nephrology
Causes of Polyuria - Differential Diagnosis
Excess Intake of Water:
 • Primary polydipsia (a.k.a. "psychogenic polydipsia")
 •
- Differential Diagnosis ... • Central Dl (Low ... Mimics (↑ urine ... - Strong Medicine ... #Causes #nephrology
Normal Anion-Gap Acidosis (NAGMA) - Differential Diagnosis Framework and Workup

NAGMA
- Chem, ABG or VBG
- Calculate Anion
- Differential Diagnosis ... • Impaired H+ secretion ... low/normal Type ... #Differential #Diagnosis ... #Workup #nephrology
Hepatorenal Syndrome Diagnosis
 • ↑ in serum Cr of ≥ 0.3mg/dL above baseline
Hepatorenal Syndrome Diagnosis ... type 2 HRS) • Low ... urine Na+ (<10 ... mEq/L, FENa < 1% ... #HRS #nephrology
Hypokalemia Diagnostic Algorithm
To assess potassium excretion: perform 24-hour urine collection or alternatively obtain potassium-to-creatinine ratio on
Hypokalemia Diagnostic ... assess potassium excretion ... perform 24-hour urine ... Algorithm #TTKG #nephrology ... #low #potassium
Metabolic Alkalosis - Urinary Chloride Algorithm
Cl- responsive metabolic alkalosis
 • Kidney loss of Cl-
alkalosis • Normal/low ... result of increased excretion ... in the proximal tubule ... #Algorithm #nephrology ... #differential #diagnosis
Hyperkalemia - Diagnosis and Management - GrepMed Handbook

S/Sx: Most pts asymptomatic. Weakness, cramping, nausea, paresthesias, palpitations,
Excretion: ... lysis) ± Urine ... suggests ↓ renal excretion ... acidosis) • Low ... #potassium #nephrology
Rhabdomyolysis - Differential Diagnosis Framework and Management Summary

Causes of Rhabdomyolysis:
 • Trauma:
	- Immobilization
	- Crush injury
	- Compartment
- Differential Diagnosis ... Heat injury, Heat stroke ... Weakness - Dark urine ... hour with goal urine ... #nephrology
Gitelman Syndrome Overview

What?
• Inherited (AR) hypokalemic salt-losing tubulopathies affecting the thiazide-sensitive sodium chloride cotransporter
• Gitelman's syndrome
alkalosis • Normal or low ... Hypocalciuria (spot urine ... Rhabdomyolysis Treatment ... Gitelman #Syndrome #diagnosis ... #nephrology #management