10 results
Workup for Hypophosphatemia - Differential Diagnosis Framework
Rule out spurious hypophosphatemia: paraproteinemia, acute leukemia
Measure Urine Fractional Excretion
Workup for Hypophosphatemia ... Malabsorption, Chronic diarrhea ... • Normal or Low ... - Normal or Low ... #phosphate #nephrology
Hypophosphatemia - Differential Diagnosis Algorithm
Appropriately Low Kidney Phosphate Excretion:
 • Decreased GI Absorption: Chronic Diarrhea, Antacids,
Hypophosphatemia ... Appropriately Low ... Absorption: Chronic Diarrhea ... #nephrology #phosphorus ... #workup
Causes of Hypokalemia - Differential Diagnosis Algorithm
Once pseudohypokalemia is ruled out, causes of hypokalemia can be
Differential Diagnosis Algorithm ... filling of bucket (low ... all the time (urinary ... #Causes #workup ... #nephrology
Hypokalemia - Differential Diagnosis Algorithm
Extra-renal Losses:
 • Normal Acid-Base: Low intake
 • Metabolic acidosis: Gl tract
Differential Diagnosis Algorithm ... Gl tract loss (Diarrhea ... secreting tumor, Primary ... #causes #potassium ... #low #nephrology
Hypokalemia Differential Algorithm
Acidosis
 - RTA
 - Diarrhea
pH Normal 
 1. Decreased Mg 
 2. Intracellular Shift
Hypokalemia Differential Algorithm ... Acidosis - RTA - Diarrhea ... Primary hyperaldo ... #Diagnosis #Causes ... #Workup #Nephrology
Causes of Hypernatremia - Differential Diagnosis Algorithm
Hypernatremia - Excess free water loss, Serum Sodium >145 mmol/L
High
Osmotic diuresis (see ... mannitol, glucosuria Low ... loss • Watery Diarrhea ... Hypernatremia #Nephrology ... #Causes
Hypokalemia Evaluation Algorithm

Before evaluating hypokalemia, life threatening complications such as arrhythmias and paralysis should be looked
Hypokalemia Evaluation Algorithm ... Laxative use • Diarrhea ... mEq/g suggests urinary ... differential #potassium #nephrology ... #low
Causes of Hypomagnesemia
 • Redistribution: IV glucose, Correction of diabetic ketoacidosis, IV hyperalimentation, Refeeding after starvation,
Causes of Hypomagnesemia ... biliary fistula, Diarrhea ... depletion, Familial hypophosphatemia ... differential #diagnosis #nephrology ... #magnesium #low
Metabolic Alkalosis - Urinary Chloride Algorithm
Cl- responsive metabolic alkalosis
 • Kidney loss of Cl-
Metabolic Alkalosis - Urinary ... Chloride Algorithm ... alkalosis • Normal/low ... the indicated causes ... #nephrology #differential
Polycythemia - Differential Diagnosis Algorithm
Polycythemia itself isn’t a diagnosis. Like many things, it is a condition
Differential Diagnosis Algorithm ... an underlying cause ... some time, let’s see ... levels: realllly low ... #workup #hematology