22 results
True Hyponatremia Differential Algorithm

Instead (or in addition) of volume status examination, check urine sodium and serum
Algorithm Instead ... addition) of volume status ... low, uric acid ... and uric acid low ... #Nephrology
Metabolic Alkalosis - Urinary Chloride Algorithm
Cl- responsive metabolic alkalosis
 • Kidney loss of Cl-
Algorithm Cl- ... alkalosis • Normal/low ... Normal acid-base status ... the indicated causes ... #nephrology #differential
Causes of Hypokalemia - Differential Diagnosis Algorithm
Once pseudohypokalemia is ruled out, causes of hypokalemia can be
- Differential ... Diagnosis Algorithm ... filling of bucket (low ... (transcellular shift ... #nephrology
Lactated Ringers (LR) vs Normal Saline (NS) - Comparison

Composition of LR:
 • Sodium 130 mEq/L
 •
and necrosis in states ... transcellular shift ... • Saline Causes ... decreased renal blood flow ... • Saline May Cause
Metabolic Alkalosis - Differential Diagnosis Algorithm - Urinary Chloride
 • Cl- responsive metabolic alkalosis
Metabolic Alkalosis - Differential ... Diagnosis Algorithm ... - Normal/low ... Normal acid-base status ... #causes #urinary
Hypochloremia - Differential Diagnosis Algorithm

Cause - Decreased Intake:
 • Low salt in diet
 • Exclusive D5W
Diagnosis Algorithm ... Intake: • Low ... altered mental status ... Pathophysiology #Nephrology ... #Chloride
Causes of Hypernatremia - Differential Diagnosis Algorithm
Hypernatremia - Excess free water loss, Serum Sodium >145 mmol/L
High
- Differential ... Diagnosis Algorithm ... water loss, Serum Sodium ... mannitol, glucosuria Low ... Hypernatremia #Nephrology
Approach to Hypomagnesemia 

Fractional excretion of magnesium = (urine magnesium x serum creatinine)/ [0.7 (serum magnesium
intake, Gl loss, shift ... #differential # ... diagnosis #causes ... #nephrology #magnesium ... #low
Hyponatremia - Differential Diagnosis Algorithm
Hypovolemic - Give volume
Hypervolemic (Edematous) - Look for and treat underlying cause
Diagnosis Algorithm ... treat underlying cause ... , CNS Disease, Meds ... #diagnosis #nephrology ... #sodium
Hypernatremia - Differential Diagnosis Workup Algorithm

1) Check Urine Osmolality:
 > 600 mOsm/kg - Implies extrarenal mechanism
Hypernatremia - Differential ... Diagnosis Workup Algorithm ... mechanism 2) Volume Status ... • Euvolemic (Low ... #nephrology #sodium