21 results
Primary Metabolic Alkalosis - Differential Diagnosis Algorithm
Volume Depleted 2° hyperaldosteronism
 • Low Urine Cl-: Vomiting, NGT
Primary Metabolic Alkalosis ... - Differential Diagnosis ... Urine Cl-: Vomiting ... (late) • High Urine ... #Algorithm #nephrology
Primary Metabolic Alkalosis - Differential Diagnosis Algorithm
Volume Depleted - 2° hyperaldosteronism
 • Low Urine Cl-: Vomiting,
Primary Metabolic Alkalosis ... - Differential Diagnosis ... Urine Cl-: Vomiting ... (late) • High Urine ... #Algorithm #Nephrology
Metabolic Alkalosis - Urinary Chloride Algorithm
Cl- responsive metabolic alkalosis
 • Kidney loss of Cl-
• Normal/low ... sodium is typically ... the excretion of sodium ... #Algorithm #nephrology ... #differential #diagnosis
True Hyponatremia Differential Algorithm

Instead (or in addition) of volume status examination, check urine sodium and serum
sodium and serum ... sodium low, uric ... uric acid low in ... Differential #Algorithm #Diagnosis ... #Nephrology
Hyponatremia Differential Diagnosis Algorithm - Utilizing Uric Acid 
ADH promotes Urea/uric acid excretion along with water
Osmolarity 2) Urine ... Sodium 4) Serum ... Uric Acid - Low ... #Algorithm #nephrology ... #sodium #low #uricacid
Volume Based Approach to Hyponatremia
Hypovolemic, Serum uric acid >4
 • Urine Na <20: Extra-renal losses
 •
uric acid >4 • Urine ... Hypothyroidism, Low ... uric acid >4 • Urine ... Hyponatremia #algorithm #diagnosis ... #sodium #low #nephrology
Causes of Hypernatremia - Differential Diagnosis Algorithm
Hypernatremia - Excess free water loss, Serum Sodium >145 mmol/L
High
- Differential Diagnosis ... water loss, Serum Sodium ... mannitol, glucosuria Low ... Urine Osmolality ... Hypernatremia #Nephrology
Primary Metabolic Alkalosis - Differential Diagnosis Algorithm
Volume Depleted - 2° hyperaldosteronism
 • Low Urine Cl-: Vomiting,
Primary Metabolic Alkalosis ... - Differential Diagnosis ... Urine Cl-: Vomiting ... (late) • High Urine ... #Algorithm #Nephrology
Algorithm for patients with hypokalemia on the basis of the potassium-to-creatinine ratio in the urine
Urine K+
EABV, Low Plasma ... Urine Cl - Non-reabsorbable ... Cl - Loop diuretics ... differential #algorithm #diagnosis ... #nephrology
Workup for Hypophosphatemia - Differential Diagnosis Framework
Rule out spurious hypophosphatemia: paraproteinemia, acute leukemia
Measure Urine Fractional Excretion
- Differential Diagnosis ... leukemia Measure Urine ... Glucose, Acute resp. alkalosis ... • Normal or Low ... Workup #phosphate #nephrology