12 results
Approach to Hypomagnesemia 

Fractional excretion of magnesium = (urine magnesium x serum creatinine)/ [0.7 (serum magnesium
intake, Gl loss, shift ... #algorithm #differential ... #diagnosis #causes ... #nephrology #magnesium ... #low
Hypokalemia Differential Diagnosis Algorithm

Low intake 
• poor oral intake 

Renal loss 
• Medication 
• Hypomagnesemia 
•
Hypokalemia Differential Diagnosis ... Algorithm Low ... Medication • Hypomagnesemia ... Transcellular shift ... #Algorithm #Causes
Drugs associated with hypokalemia and hypomagnesemia

Hypokalemia
- Shift from extracellular fluid to intracellular fluid compartment
  -
hypokalemia and hypomagnesemia ... Hypokalemia - Shift ... overdose) - Sodium ... #differential #diagnosis ... #nephrology #Causes
Causes of Hypokalemia - Differential Diagnosis Algorithm
Once pseudohypokalemia is ruled out, causes of hypokalemia can be
Algorithm Once ... filling of bucket (low ... (transcellular shift ... #Algorithm #Causes ... #workup #nephrology
Causes of Metabolic Alkalosis - Differential Diagnosis Algorithm
GI Losses - Gastric
 • Vomiting
 • NG suction
GI
Causes of Metabolic ... Algorithm GI Losses ... loop/thiazide) • Hypomagnesemia ... MetabolicAlkalosis #NonGap #Nephrology ... #Algorithm #Causes
Causes of Hypernatremia - Differential Diagnosis Algorithm
Hypernatremia - Excess free water loss, Serum Sodium >145 mmol/L
High
Causes of Hypernatremia ... water loss, Serum Sodium ... mannitol, glucosuria Low ... Hypernatremia #Nephrology ... #Algorithm #Causes
Hyponatremia - Differential Diagnosis Algorithm
Hypovolemic - Give volume
Hypervolemic (Edematous) - Look for and treat underlying cause
Algorithm Hypovolemic ... treat underlying cause ... , CNS Disease, Meds ... #Algorithm #diagnosis ... #nephrology #sodium
Metabolic Alkalosis - Urinary Chloride Algorithm
Cl- responsive metabolic alkalosis
 • Kidney loss of Cl-
alkalosis • Normal/low ... Gitelman syndrome, Hypomagnesemia ... the indicated causes ... #nephrology #differential ... #diagnosis
Physiologic Approach to Hypotonic Hyponatremia
The next time you have a case of hypotonic hyponatremia, give the
time you have a case ... normal volume-based algorithm ... can be high or low ... #differential #diagnosis ... #nephrology
Causes of Hypokalemia - Differential Diagnosis Algorithm
Decreased intake (rare cause in isolation)
GI loss - Urine loss
- Differential Diagnosis ... Algorithm Decreased ... Transcellular shift ... #Hypokalemia #Nephrology ... #Algorithm #Causes