12 results
Hypokalemia - Differential Diagnosis
Poor Intake 
 - Starvation
 - Anorexia
GI Losses 
 - Vomiting / NG
Hypokalemia - Differential ... Mineralocorticoid excess - Renal ... tubular acidosis ... Catecholamines - Alkalosis ... Diagnosis #Low #
Renal Tubular Acidosis - Differential Diagnosis Algorithm
Decreased Serum K, Urine pH < 5.5 - Proximal RTA
Decreased
Renal Tubular Acidosis ... - Differential ... pH > 6.0 - Hypokalemic ... Tubular Acidosis ... #Tubular #Acidosis
Normal Anion-Gap Acidosis (NAGMA) - Differential Diagnosis Framework and Workup

NAGMA
- Chem, ABG or VBG
- Calculate Anion
(NAGMA) - Differential ... Framework and Workup ... - RenalUrine ... Tubular Acidosis ... #nephrology
Metabolic Alkalosis - Urinary Chloride Algorithm
Cl- responsive metabolic alkalosis
 • Kidney loss of Cl-
• Normal/low ... high in kidney tubular ... in the proximal tubule ... #Algorithm #nephrology ... #differential #
Hypokalemia Differential Algorithm
Acidosis
 - RTA
 - Diarrhea
pH Normal 
 1. Decreased Mg 
 2. Intracellular Shift
Hypokalemia Differential ... Algorithm Acidosis ... Renal artery stenosis ... Diagnosis #Causes #Workup ... #Nephrology
Hypokalemia Evaluation Algorithm

Before evaluating hypokalemia, life threatening complications such as arrhythmias and paralysis should be looked
suggests extra-renal ... - Metabolic Alkalosis ... - Metabolic acidosis ... diagnosis #Algorithm #differential ... #low
Gitelman Syndrome Overview

What?
• Inherited (AR) hypokalemic salt-losing tubulopathies affecting the thiazide-sensitive sodium chloride cotransporter
• Gitelman's syndrome
• Normal or low ... (renal potassium ... Hypocalciuria (spot urine ... ratio 0.5%) Differential ... tubular acidosis
Workup for Hypophosphatemia - Differential Diagnosis Framework
Rule out spurious hypophosphatemia: paraproteinemia, acute leukemia
Measure Urine Fractional Excretion
Workup for Hypophosphatemia ... - Differential ... leukemia Measure Urine ... Glucose, Acute resp. alkalosis ... FEPO4 ≥ 5% - Renal
Causes of Hypokalemia
Transcellular Shifts:
 - Alkalosis, Increased plasma insulin (treatment of diabetic ketoacidosis), ß-Adrenergic agonists, Hypokalemic
Transcellular Shifts: - Alkalosis ... Villous adenoma Renal ... chewing tobacco, Renal ... tubular acidosis ... #Causes #differential
Causes of Metabolic Alkalosis: Differential Diagnosis
ECF volume contracted: urine chloride concentration <20 meq/L
 • Gastric alkalosis:
: Differential Diagnosis ... chronic respiratory acidosis ... diuretics after renal ... tubule diuretic ... #Differential #