19 results
Primary Metabolic Alkalosis - Differential Diagnosis Algorithm
Volume Depleted 2° hyperaldosteronism
 • Low Urine Cl-: Vomiting, NGT
Primary Metabolic Alkalosis ... - Differential ... (late) • High Urine ... hyperaldosteronism • High PRA: Renal ... #Differential #
Primary Metabolic Alkalosis - Differential Diagnosis Algorithm
Volume Depleted - 2° hyperaldosteronism
 • Low Urine Cl-: Vomiting,
Primary Metabolic Alkalosis ... - Differential ... (late) • High Urine ... hyperaldosteronism • High PRA: Renal ... #Differential #
Metabolic Alkalosis - Urinary Chloride Algorithm
Cl- responsive metabolic alkalosis
 • Kidney loss of Cl-
, Gitelman syndrome ... sodium is typically ... the excretion of sodium ... #Algorithm #nephrology ... #differential #
Causes of Metabolic Alkalosis: Differential Diagnosis
ECF volume contracted: urine chloride concentration <20 meq/L
 • Gastric alkalosis:
: Differential Diagnosis ... diuretics after renal ... generally indicates a renal ... #Differential # ... Diagnosis #Causes #nephrology
Hypernatremia - Differential Diagnosis Workup Algorithm

1) Check Urine Osmolality:
 > 600 mOsm/kg - Implies extrarenal mechanism
Hypernatremia - Differential ... Algorithm 1) Check Urine ... mOsm/kg - Implies renal ... , Cushing syndrome ... #sodium
Workup for Hypophosphatemia - Differential Diagnosis Framework
Rule out spurious hypophosphatemia: paraproteinemia, acute leukemia
Measure Urine Fractional Excretion
Hypophosphatemia - Differential ... leukemia Measure Urine ... 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
A urine K/Cr ratio ... suggests extra-renal ... • Diarrhea A urine ... - Metabolic Alkalosis ... diagnosis #Algorithm #differential
Physiologic Approach to Hypotonic Hyponatremia
The next time you have a case of hypotonic hyponatremia, give the
volume-based algorithm Urine ... Sodium loss (diuretics ... Cirrhosis, Nephrotic syndrome ... #Hyponatremia #differential ... #nephrology
Hematuria in Post-Renal Transplant Patient
Prevalence up to 12% in the postrenal transplant patient
 • Bacterial: Escherichia
(Goodpasture's syndrome ... #Transplant #differential ... kidney #blood #urine ... #management #treatment ... #nephrology
Causes of Secondary Hypertension - Differential Diagnosis and Screening Testing
Common causes: 
 • Renal parenchymal disease
Hypertension - Differential ... Oral sodium loading ... test (with 24-h urine ... • Cushing’s syndrome ... #Hypertension #Differential