35 results
Hypokalemia - Differential Diagnosis Algorithm

Transcellular Shift:
 • Alkalosis
 • ↑ beta-2 adrenergic simulation 
 • Erythropoiesis
Transcellular Shift ... : • Alkalosis ... Losses Non-renal ... vomiting) • Low ... Diagnosis #Algorithm #nephrology
Primary Metabolic Alkalosis - Differential Diagnosis Algorithm
Volume Depleted 2° hyperaldosteronism
 • Low Urine Cl-: Vomiting, NGT
Alkalosis - Differential ... Urine Cl-: Vomiting ... (late) • High Urine ... hyperaldosteronism • High PRA: Renal ... Diagnosis #Algorithm #nephrology
Metabolic Alkalosis - Urinary Chloride Algorithm
Cl- responsive metabolic alkalosis
 • Kidney loss of Cl-
- Urinary Chloride ... • Kidney loss ... • Normal/low ... #Urinary #Chloride ... #nephrology #differential
Primary Metabolic Alkalosis - Differential Diagnosis Algorithm
Volume Depleted - 2° hyperaldosteronism
 • Low Urine Cl-: Vomiting,
Primary Metabolic ... Alkalosis - Differential ... Urine Cl-: Vomiting ... hyperaldosteronism • High PRA: Renal ... Diagnosis #Algorithm #Nephrology
Workup for Hypophosphatemia - Differential Diagnosis Framework
Rule out spurious hypophosphatemia: paraproteinemia, acute leukemia
Measure Urine Fractional Excretion
leukemia Measure Urine ... Transcellular Shift ... Glucose, Acute resp. alkalosis ... FEPO4 ≥ 5% - Renal ... Workup #phosphate #nephrology
Hypokalemia Evaluation Algorithm

Before evaluating hypokalemia, life threatening complications such as arrhythmias and paralysis should be looked
differentiating kidney ... suggests extra-renal ... mEq/g suggests urinary ... - Metabolic Alkalosis ... differential #potassium #nephrology
Hypophosphatemia - Differential Diagnosis Algorithm
Appropriately Low Kidney Phosphate Excretion:
 • Decreased GI Absorption: Chronic Diarrhea, Antacids,
Appropriately Low ... Kidney Phosphate ... Transcellular Shift ... Acute Respiratory Alkalosis ... Diagnosis #Algorithm #nephrology
Approach to Hypomagnesemia 

Fractional excretion of magnesium = (urine magnesium x serum creatinine)/ [0.7 (serum magnesium
of magnesium = (urine ... serum magnesium x urine ... intake, Gl loss, shift ... diagnosis #causes #nephrology ... #magnesium #low
Hypokalemia Differential Algorithm
Acidosis
 - RTA
 - Diarrhea
pH Normal 
 1. Decreased Mg 
 2. Intracellular Shift
Intracellular Shift ... Metabolic alkalosis ... Primary hyperaldo ... Renal artery stenosis ... Causes #Workup #Nephrology
Acute Kidney Injury - AKI Workup Algorithm and Differential Diagnosis
Baseline Investigations: full blood count with differential,
Acute Kidney Injury ... microscopy / urinary ... calcium Optional: urinary ... imaging #Acute #Kidney ... Differential #Diagnosis #nephrology