40 results
Hypokalemia - Differential Diagnosis Algorithm
Extra-renal Losses:
 • Normal Acid-Base: Low intake
 • Metabolic acidosis: Gl tract
Extra-renal Losses ... loss (Diarrhea) Renal ... • HTN, High Aldosterone ... #causes #potassium ... #low #nephrology
Workup for Hypophosphatemia - Differential Diagnosis Framework
Rule out spurious hypophosphatemia: paraproteinemia, acute leukemia
Measure Urine Fractional Excretion
Workup for Hypophosphatemia ... FEPO4 ≥ 5% - Renal ... • Normal or High ... • Normal or Low ... #nephrology
Workup of Hypercalcemia - Differential Diagnosis Algorithm
High or Normal PTH:
 • Hyperparathyroidism: Parathyroid adenoma, Parathyroid hyperplasia,
Workup of Hypercalcemia ... Differential Diagnosis Algorithm ... Hypercalcemia Low ... PTHrP: - Low ... #Workup #nephrology
Primary Metabolic Alkalosis - Differential Diagnosis Algorithm
Volume Depleted - 2° hyperaldosteronism
 • Low Urine Cl-: Vomiting,
Differential Diagnosis Algorithm ... Diuretics (late) • High ... hyperaldosteronism • High ... PRA: Renal artery ... #Nephrology #Causes
Breast Discharge - Differential Diagnosis Algorithm
High Prolactin + Normal TSH
 • Microprolactinoma
 • Steroid Hormone Intake
Differential Diagnosis Algorithm ... Intake • Chronic Renal ... Prolactin + Normal/ Low ... Production • Renal ... Endocrinology #Causes
Causes of Metabolic Alkalosis - Differential Diagnosis Algorithm
GI Losses - Gastric
 • Vomiting
 • NG suction
GI
Causes of Metabolic ... Chloridorrhea Renal ... Licorice • Liddle's Syndrome ... MetabolicAlkalosis #NonGap #Nephrology ... #Causes
Hypocalcemia Workup - Differential Diagnosis Algorithm
 • Low Magnesium, High Magnesium - Functional Hypoparathyroidism
 • High
Hypocalcemia Workup ... Differential Diagnosis Algorithm ... metastases, Hungry bone syndrome ... #Hypocalcemia #Workup ... #nephrology #calcium
Primary Metabolic Alkalosis - Differential Diagnosis Algorithm
Volume Depleted 2° hyperaldosteronism
 • Low Urine Cl-: Vomiting, NGT
Differential Diagnosis Algorithm ... Diuretics (late) • High ... hyperaldosteronism • High ... PRA: Renal artery ... #nephrology
Hyponatremia - Differential Diagnosis Algorithm
ADH Independent:
 • Tea and Toast Syndrome, Beer Potomania - Low solute
Tea and Toast Syndrome ... Beer Potomania - Low ... Treat with a high ... • Renal Failure ... #causes #nephrology
Hypokalemia Differential Diagnosis Algorithm

Low intake 
• poor oral intake 

Renal loss 
• Medication 
• Hypomagnesemia 
•
Differential Diagnosis Algorithm ... Low intake ... oral intake Renal ... AndreMansoor - Author of Frameworks ... #Causes #Classification