88 results
Hyponatremia Differential Diagnosis Table

 • Step 1: Correct for hyperglycemia. Corrected Na = [(glucose - 100)/
Corrected Na = [ ... Urine Osm • Na ... of total body Na
Hypo-osmolar Hypotonic HypoNatremia Algorithm (Serum Na+ < 135 meq/L, serum Osm < 275 mosm/kg)
Assess Volume Status,
Algorithm (Serum Na ... Status, Check Urine Na
Volume Based Approach to Hyponatremia
Hypovolemic, Serum uric acid >4
 • Urine Na <20: Extra-renal losses
 •
acid >4 • Urine Na ... losses • Urine Na ... acid >4 • Urine Na ... syndrome • Urine Na
Diuretics - Pharmacology

Thiazides diuretics:
 • Inhibit Na+ Cl- cotransporter in distal tubule
 • Chlorothiazide, Chlorthalidone, Indapamide,
diuretics: • Inhibit Na ... diuretics: • Inhibit Na ... diuretics: • Inhibit Na ... inhibitors: • Inhibit Na ... diuretics: • Promote Na
Hyponatremia with Severe Symptoms - Management Algorithm with Hypertonic Saline
The goal of acute management is to
is to raise the Na ... have raised the Na ... probably not the low Na
Fractional Excretion of Sodium - FENa
Fractional Excretion of Sodium (FENa) = (Urine Na+ x Serum Cr)
FENa) = (Urine Na ... Serum Cr) / (Serum Na
Thiazide
diuretics
Carbonic anhydrase
inhibitors
(e.g., acetazolamide)
Nat-Cl symport
Na and HCO;-
reabsorption
Aldosterone
antagonists
(e.g., spironolactone)
Nat channel
(indirect effect)
Loop diuretics (e.g., furosemide)
Amiloride,
#triamterene
Nat-K+-2CF symport
Na channel
(direct effect)
#NaCI reabsorption
Nat-Cl symport Na ... +-2CF symport Na
Urinalysis & Urine Sodium 
Theophilus Protospatharius, a seventh-century physician who wrote the first manuscript focused exclusively
of Sodium (FE Na ... [(U Na x P Cr) / ... (P Na x U Cr)] ... = Creatinine, Na ... Injury (AKI) FE Na
Digoxin Pharmacology and Pathophysiology
1) Na/K ATPase Pump - Digoxin works by directly binding to and inhibiting
Pathophysiology 1) Na ... action of the Na ... increase. 2) The Na ... digoxin blocks the Na ... increase, the Na
Hyponatremia - Correction for Hyperglycemia

#Diagnosis #Pseudohyponatremia #Hyperglycemia #Glucose #Correction #Formula #Sodium #Na
Formula #Sodium #Na