23 results
Classification, Differential Diagnosis, and Features of Hyponatremia According to Volume Status 

Hypervolemic hypernatremia 
 - CHF
Classification, ... Differential Diagnosis ... Glucocorticoid deficit - Hypokalemia ... #Classification ... Diagnosis #Table #Causes
Causes of Hyponatremia - Differential Diagnosis Algorithm
Hypovolemia, UNa > 20: 
 • Renal losses, Diuretic excess,
Causes of Hyponatremia ... - Differential ... renal failure Hypervolemia ... #Differential # ... #nephrology
Causes of Hypokalemia - Differential Diagnosis Algorithm
Once pseudohypokalemia is ruled out, causes of hypokalemia can be
Causes of Hypokalemia ... - Differential ... of hypokalemia ... #Differential # ... #workup #nephrology
Hyponatremia Diagnosis Algorithm
UOsm ≥ POsm - Vasopressin-Dependent
 • UNa < 20 mEq/L - Appropriate (↓ EABV)
Hyponatremia Diagnosis ... SIADH, Cortisol deficiency ... #diagnosis #differential ... #algorithm #causes ... #nephrology
Causes of Altered Level of Consciousness GCS < 7 - Differential Diagnosis Algorithm

Brain Involvement - Hemispheric
Causes of Altered ... Consciousness GCS < 7 - Differential ... • Hypercalcemia ... • B12/Thiamine deficiency ... • Hyponatremia
Hyponatremia - Differential Diagnosis Algorithm
Hypovolemic - Give volume
Hypervolemic (Edematous) - Look for and treat underlying cause
Hyponatremia - Differential ... treat underlying cause ... Glucocorticoid Deficiency ... #Differential # ... Algorithm #diagnosis #nephrology
Hypomagnesemia - Etiologies by Mechanism

Decreased GI Uptake 
 - Poor dietary intake (particularly common in alcoholics)
abnormalities - Hypercalcemia ... - Hypokalemia ... Hypomagnesemia #Differential ... Magnesium #Table #Classification ... #Causes #Workup
Hypokalemia Differential Algorithm
Acidosis
 - RTA
 - Diarrhea
pH Normal 
 1. Decreased Mg 
 2. Intracellular Shift
Hypokalemia Differential ... NephTwitter) #Hypokalemia ... #Differential # ... Algorithm #Diagnosis #Causes ... #Workup #Nephrology
Hyperkalemia - Differential Diagnosis Framework

PseudoHyperkalemia:
 • Lab error
 • Traumatic venipuncture
 • Hemolysis, thrombocytosis, leukocytosis
 •
Hyperkalemia - Differential ... paralysis - Insulin deficiency ... Mineralocorticoid deficiency ... #differential # ... diagnosis #causes
Physiologic Approach to Hypotonic Hyponatremia
The next time you have a case of hypotonic hyponatremia, give the
time you have a case ... mineralocorticoid deficiency ... : Hypovolemia, Hypervolemia ... #differential # ... table #sodium #nephrology