30 results
Hypokalemia - Differential Diagnosis Algorithm

Transcellular Shift:
 • Alkalosis
 • ↑ beta-2 adrenergic simulation 
 • Erythropoiesis
Transcellular Shift ... vomiting) • Low ... Transcellular shifts ... Diagnosis #Algorithm #nephrology ... #low #potassium
Approach to Hypomagnesemia 

Fractional excretion of magnesium = (urine magnesium x serum creatinine)/ [0.7 (serum magnesium
Approach to Hypomagnesemia ... intake, Gl loss, shift ... @NEPHKIDS1 #Hypomagnesemia ... diagnosis #causes #nephrology ... #magnesium #low
Hypokalemia Differential Diagnosis Algorithm

Low intake 
• poor oral intake 

Renal loss 
• Medication 
• Hypomagnesemia 
•
Diagnosis Algorithm Low ... Medication • Hypomagnesemia ... Transcellular shift ... Algorithm #Causes #Classification
Hypokalemia - Differential Diagnosis Algorithm
Extra-renal Losses:
 • Normal Acid-Base: Low intake
 • Metabolic acidosis: Gl tract
Normal Acid-Base: Low ... intake • Metabolic ... Renal Losses: • Metabolic ... Algorithm #causes #potassium ... #low #nephrology
Hypomagnesemia - Etiologies by Mechanism

Decreased GI Uptake 
 - Poor dietary intake (particularly common in alcoholics)
Hypomagnesemia - ... Primary intestinal hypomagnesemia ... Differential #Diagnosis #Low ... Magnesium #Table #Classification ... #Causes #Workup
Hypokalemia - Differential Diagnosis
Poor Intake 
 - Starvation
 - Anorexia
GI Losses 
 - Vomiting / NG
- Polyuria - Hypomagnesemia ... Differential #Diagnosis #Low ... #Potassium #Table ... #Classification
Hypokalemia Differential Algorithm
Acidosis
 - RTA
 - Diarrhea
pH Normal 
 1. Decreased Mg 
 2. Intracellular Shift
Intracellular Shift ... Metabolic alkalosis ... Diagnosis #Causes #Workup ... #Nephrology
Causes of Hypokalemia - Differential Diagnosis Algorithm
Once pseudohypokalemia is ruled out, causes of hypokalemia can be
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 ... loop/thiazide) • Hypomagnesemia ... aldosteronism Low ... Renin, Low Aldosterone ... MetabolicAlkalosis #NonGap #Nephrology
Metabolic Alkalosis - Urinary Chloride Algorithm
Cl- responsive metabolic alkalosis
 • Kidney loss of Cl-
Metabolic Alkalosis ... alkalosis • Normal/low ... Gitelman syndrome, Hypomagnesemia ... of sodium and potassium ... urine #Algorithm #nephrology