42 results
Hypernatremia Diagnosis and Workup

Step 1 . Repeat the sodium concentration.
Step 2.  Check plasma osmolality.
NORMAL PLASMA
HYPOVOLEMIC • extra-renal ... - fevers • renal ... • nephrotic syndrome ... • renal failure ... #Algorithm #Nephrology
Causes of Hyponatremia - Differential Diagnosis Algorithm
Syndrome of Inappropriate ADH - Euvolemic; no physiologic stimulus to
Causes of Hyponatremia ... GI losses • Renal ... • Reduced GFR, AKI ... Hypothyroidism • Adrenal ... #Nephrology #Differential
Causes of Hyponatremia - Differential Diagnosis Algorithm
Syndrome of Inappropriate ADH - Euvolemic; no physiologic stimulus to
Causes of Hyponatremia ... GI losses • Renal ... • Reduced GFR, AKI ... Hypothyroidism • Adrenal ... #Nephrology #Differential
Hyponatremia - Differential Diagnosis Algorithm
ADH Independent:
 • Tea and Toast Syndrome, Beer Potomania - Low solute
Beer Potomania - Low ... • Renal Failure ... Hypovolemic - GI losses, renal ... Hypothyroidism, adrenal ... #causes #nephrology
Hypernatremia - Differential Diagnosis Workup Algorithm

1) Check Urine Osmolality:
 > 600 mOsm/kg - Implies extrarenal mechanism
Algorithm 1) ... mOsm/kg - Implies renal ... • Euvolemic (Low ... , Ingestion Renal ... #Algorithm #nephrology
Hypokalemia - Differential Diagnosis Algorithm
Extra-renal Losses:
 • Normal Acid-Base: Low intake
 • Metabolic acidosis: Gl tract
Extra-renal Losses ... intake • Metabolic ... loss (Diarrhea) Renal ... Losses: • Metabolic ... #nephrology
Physiologic Approach to Hypotonic Hyponatremia
The next time you have a case of hypotonic hyponatremia, give the
≥100): SIADH, Renal ... Hypothyroidism, Adrenal ... Present (Uosm <100): Renal ... Hypervolemia with poor renal ... table #sodium #nephrology
Acute Kidney Injury - AKI Workup Algorithm and Differential Diagnosis
Baseline Investigations: full blood count with differential,
Workup Algorithm ... urinary sediment, renal ... renal biopsy • ... #Workup #Algorithm ... Differential #Diagnosis #nephrology
Causes of Hyponatremia - Differential Diagnosis Algorithm
Hypovolemia, UNa > 20: 
 • Renal losses, Diuretic excess,
UNa > 20: • Renal ... Bicarbonaturia with renal ... tubal acidosis and metabolic ... Acute or chronic renal ... #Causes #nephrology
Primary Metabolic Alkalosis - Differential Diagnosis Algorithm
Volume Depleted 2° hyperaldosteronism
 • Low Urine Cl-: Vomiting, NGT
Primary Metabolic ... Differential Diagnosis Algorithm ... hyperaldosteronism • High PRA: Renal ... #Primary #Metabolic ... #nephrology