18 results
Causes of Hyponatremia - Differential Diagnosis Algorithm
Syndrome of Inappropriate ADH - Euvolemic; no physiologic stimulus to
- Differential Diagnosis ... Algorithm Syndrome ... Pain/Post-op • Neurologic ... Cirrhosis • Nephrotic ... GFR, AKI/CRF Hormonal
Causes of Hyponatremia - Differential Diagnosis Algorithm
Syndrome of Inappropriate ADH - Euvolemic; no physiologic stimulus to
- Differential Diagnosis ... Algorithm Syndrome ... Pain/Post-op • Neurologic ... Cirrhosis • Nephrotic ... GFR, AKI/CRF Hormonal
Hyponatremia - Differential Diagnosis Algorithm
ADH Independent:
 • Tea and Toast Syndrome, Beer Potomania - Low solute
Algorithm ADH ... Beer Potomania - Low ... liver failure, nephrotic ... syndrome ... #nephrology
Hyponatremia - Differential Diagnosis Algorithm
Hypovolemic - Give volume
Hypervolemic (Edematous) - Look for and treat underlying cause
underlying cause (CHF ... , cirrhosis, nephrotic ... syndrome) Euvolemic ... #Algorithm #diagnosis ... #nephrology #sodium
Hypokalemia - Differential Diagnosis Algorithm

Transcellular Shift:
 • Alkalosis
 • ↑ beta-2 adrenergic simulation 
 • Erythropoiesis
- Differential Diagnosis ... anemia) • G-CSF ... • Refeeding syndrome ... vomiting) • Low ... #Algorithm #nephrology
Hypernatremia Diagnosis and Workup

Step 1 . Repeat the sodium concentration.
Step 2.  Check plasma osmolality.
NORMAL PLASMA
HYPERVOLEMIC • CHF ... liver failure • nephrotic ... syndrome • renal ... #Workup #Algorithm ... #Nephrology
Modified Hyponatremia Algorithm
Hypertonic Hyponatremia: Hyperglycemia, Mannitol, Urologic irrigants
Hypotonic Hyponatremia: 
 • ADH ON (UOsm > 100):
failure, Cirrhosis, Nephrotic ... syndrome - ... Primary polydipsia, Low ... #diagnosis #sodium ... #nephrology
Volume Based Approach to Hyponatremia
Hypovolemic, Serum uric acid >4
 • Urine Na <20: Extra-renal losses
 •
failure, Cirrhosis, Nephrotic ... syndrome • Urine ... #Hyponatremia #algorithm ... #diagnosis #sodium ... #low #nephrology
Shock - Differential Diagnosis Framework
 - MAP <65. SBP <90, drop in SBP > 40
 -
- Differential Diagnosis ... Decompensated CHF ... Abdominal compartment syndrome ... #criticalcare #algorithm ... #treatment #management
Physiologic Approach to Hypotonic Hyponatremia
The next time you have a case of hypotonic hyponatremia, give the
normal volume-based algorithm ... can be high or low ... failure, Cirrhosis, Nephrotic ... syndrome) • ADH ... #differential #diagnosis