19 results
Hypokalemia Differential Diagnosis Algorithm

Low intake 
• poor oral intake 

Renal loss 
• Medication 
• Hypomagnesemia 
•
Diagnosis Algorithm ... Low intake ... oral intake Renal ... Medication • Hypomagnesemia ... #Causes #Classification
Hypomagnesemia - Differential Diagnosis
Renal Causes of Hypomagnesemia - Familial:
Bartter syndrome and Gitelman syndrome, Isolated recessive hypomagnesemia,
Causes of Hypomagnesemia ... with secondary, hypocalcemia ... Renal Causes of ... #nephrology #magnesium ... #low
Hypokalemia - Differential Diagnosis
Poor Intake 
 - Starvation
 - Anorexia
GI Losses 
 - Vomiting / NG
Mineralocorticoid excess - Renal ... - Polyuria - Hypomagnesemia ... Differential #Diagnosis #Low ... #Potassium #Table ... Classification #Causes
Causes of Hypokalemia - Differential Diagnosis Algorithm
Defining the cause of hypokalemia starts by measuring urinary K
Causes of Hypokalemia ... Differential Diagnosis Algorithm ... K loss • Hypomagnesemia-induced ... Renal tubular acidosis ... #causes #nephrology
Causes of Hypocalcemia - Differential Diagnosis Algorithm
 • Extravascular: Pancreatitis, surgery, acute phosphate intake and renal
Causes of Hypocalcemia ... phosphate intake and renal ... Hyperphosphatemia, Low ... contrast agents • Hypomagnesemia ... #Causes #algorithm
Hypomagnesemia - Etiologies by Mechanism

Decreased GI Uptake 
 - Poor dietary intake (particularly common in alcoholics)
Hypomagnesemia - ... Hypercalcemia - Hypokalemia ... Differential #Diagnosis #Low ... #Magnesium #Table ... Classification #Causes
Hypokalemia - Differential Diagnosis Algorithm
Extra-renal Losses:
 • Normal Acid-Base: Low intake
 • Metabolic acidosis: Gl tract
Hypokalemia - Differential ... Diagnosis Algorithm ... Extra-renal Losses ... #causes #potassium ... #low #nephrology
Approach to Hypomagnesemia 

Fractional excretion of magnesium = (urine magnesium x serum creatinine)/ [0.7 (serum magnesium
Approach to Hypomagnesemia ... #algorithm #differential ... #diagnosis #causes ... #nephrology #magnesium ... #low
Causes of Metabolic Alkalosis - Differential Diagnosis Algorithm
GI Losses - Gastric
 • Vomiting
 • NG suction
GI
Causes of Metabolic ... Chloridorrhea Renal ... loop/thiazide) • Hypomagnesemia ... MetabolicAlkalosis #NonGap #Nephrology ... #Causes
Causes of Hypokalemia
Transcellular Shifts:
 - Alkalosis, Increased plasma insulin (treatment of diabetic ketoacidosis), ß-Adrenergic agonists, Hypokalemic
Causes of Hypokalemia ... ), Eating disorders ... Villous adenoma Renal ... chewing tobacco, Renal ... #diagnosis #nephrology