31 results
Fractional Excretion of Sodium - FENa
Fractional Excretion of Sodium (FENa) = (Urine Na+ x Serum Cr)
Fractional Excretion of Sodium ... Fractional Excretion of Sodium ... FENa) = (Urine Na ... Serum Cr) / (Serum Na ... #nephrology #calculation
How much sodium is in 1 Liter of Normal Saline? In Bags if Potato Chips
How much sodium ... saline = 0.9% sodium ... meq/L) x (23 mg Na ... meq) = 3,542 mg Na ... normal #saline #ns #nephrology
Physiologic Approach to Hypotonic Hyponatremia
The next time you have a case of hypotonic hyponatremia, give the
algorithm Urine Na ... +K / serum Na >1 ... : SIADH, Renal Sodium ... diagnosis #table #sodium ... #nephrology
Hyponatremia Differential Diagnosis Table

 • Step 1: Correct for hyperglycemia. Corrected Na = [(glucose - 100)/
Corrected Na = [ ... Urine Osm • Na ... of total body Na ... Diagnosis #Table #nephrology ... #sodium
Modified Hyponatremia Algorithm
Hypertonic Hyponatremia: Hyperglycemia, Mannitol, Urologic irrigants
Hypotonic Hyponatremia: 
 • ADH ON (UOsm > 100):
- RAAS ON (UNa ... - RAAS OFF (UNa ... Algorithm #diagnosis #sodium ... #nephrology
Orthopedic Essentials - Spinal Trauma and Spine Classification 
DENIS THREE COLUMN CONCEPT
Anterior column:
: Supraspinous ligament ... : Interspinous ligament ... LF: Ligamentum ... spinal deformity or neurologic ... Cauda equina Treatment
Migraine - Preventative Treatments

 • Anticonvulsants: *Topiramate, *Sodium valproate, Gabapentin, Pregabalin
 • Antidepressants: Amitriptyline, Venlafaxine, Duloxetine,
- Preventative Treatments ... *Topiramate, *Sodium ... #Preventative #Treatment ... #pharmacology #neurology
Management of SIADH
Treat underlying cause:
 • Causes can include pain, primary lung pathology, post-operative phenomenon, medications,
• With lower Na ... promoting passive sodium ... osmolality < 538 AND UNa ... #hyponatremia #nephrology ... #treatment
Cerebral Salt Wasting vs SIADH - Pathophysiology 
1) Neurological event
2) Sodium loss from tubules
3) Naturiesis →
Neurological event 2) Sodium ... reabsorption 5) ↓ Na ... Pathophysiology #diagnosis #nephrology
SIADH Treatment Options
1. Treat underlying cause of SIADH: Pain, Primary lung pathology, Post-operative phenomenon, Medications, Basically
SIADH Treatment ... • With lower Na ... promoting passive sodium ... #hyponatremia #nephrology ... #treatment