26 results
Hypophosphatemia - Differential Diagnosis Algorithm
 • Decreased intake/absorption: Starvation, Alcoholism, Malabsorption, Phosphate binder use
 • Redistribution/
Redistribution/ Shift ... depletion: Respiratory alkalosis ... bone syndrome • Renal ... Diagnosis #Algorithm #causes ... #nephrology #phosphate
Hypokalemia Differential Algorithm
Acidosis
 - RTA
 - Diarrhea
pH Normal 
 1. Decreased Mg 
 2. Intracellular Shift
Intracellular Shift ... Metabolic alkalosis ... Renal artery stenosis ... Algorithm #Diagnosis #Causes ... #Workup #Nephrology
Hyperphosphatemia - Differential Diagnosis Algorithm
Transcellular Shift:
 • Rhabdomyolysis
 • Tumor Lysis
 • Metabolic or Respiratory Acidosis
Hyperphosphatemia - Differential ... Transcellular Shift ... Tumor Lysis • Metabolic ... PO4 < 20%: • Renal ... endocrinology #causes
Workup for Hyperphosphatemia - Differential Diagnosis Framework
Rule out spurious hyperphosphatemia: paraproteinemia, hyperlipidemia, hemolysis, hyperbilirubinemia, liposomal amphotericin
Hyperphosphatemia - Differential ... t-PA, heparin Acute ... Transcellular Shift ... CKD Increased Renal ... #nephrology
Workup for Hypophosphatemia - Differential Diagnosis Framework
Rule out spurious hypophosphatemia: paraproteinemia, acute leukemia
Measure Urine Fractional Excretion
paraproteinemia, acute ... Transcellular Shift ... resp. alkalosis ... FEPO4 ≥ 5% - Renal ... #nephrology
Approach to Acid Base Disorders - Evaluation and Differential Diagnosis
1) Start with the Anion Gap (AG).
2)
Evaluation and Differential ... the chronicity (acute ... , chronic, or acute ... bicarb, Bicarb shift ... • Metabolic Alkalosis
Hypophosphatemia - Differential Diagnosis Algorithm
Appropriately Low Kidney Phosphate Excretion:
 • Decreased GI Absorption: Chronic Diarrhea, Antacids,
Hypophosphatemia - Differential ... Transcellular Shift ... Refeeding Syndrome, Acute ... Respiratory Alkalosis ... Diagnosis #Algorithm #nephrology
Acid Base Disorders - Blood Gas Interpretation

Steps for Blood Gas Interpretation: 
1. Acidemia or Alkalemia? 
2.
Acute or chronic ... Differentials? ... Compensation, Acute ... of Metabolic Alkalosis ... Diagnosis #Summary #Nephrology
Causes of Hyponatremia - Differential Diagnosis Algorithm
Hypovolemia, UNa > 20: 
 • Renal losses, Diuretic excess,
- Differential ... tubal acidosis and metabolic ... alkalosis, Ketonuria ... UNa > 20: • Acute ... #nephrology
Primary Metabolic Alkalosis - Differential Diagnosis Algorithm
Volume Depleted - 2° hyperaldosteronism
 • Low Urine Cl-: Vomiting,
Alkalosis - Differential ... hyperaldosteronism • High PRA: Renal ... #Alkalosis #Differential ... Diagnosis #Algorithm #Nephrology ... #Causes