25 results
Workup for Hypophosphatemia - Differential Diagnosis Framework
Rule out spurious hypophosphatemia: paraproteinemia, acute leukemia
Measure Urine Fractional Excretion
Diagnosis Framework ... Urine Fractional Excretion ... FEPO4 ≥ 5% - Renal ... Vitamin D deficiency/resistance ... Workup #phosphate #nephrology
Hyperkalemia: Diagnostic algorithm
Decreased renal potassium excretion
 • Acute renal failure
 • Chronic renal failure
 • Drugs
Increased
Hyperkalemia: Diagnostic ... potassium excretion ... Normal, Renin High ... #algorithm #nephrology ... #potassium #differential
Hyponatremia Differential Diagnosis Algorithm - Utilizing Uric Acid 
ADH promotes Urea/uric acid excretion along with water
Diagnosis Algorithm ... Urea/uric acid excretion ... Acid → SIADH - High ... Uric Acid → renal ... #nephrology #sodium
Hyperkalemia - Differential Diagnosis Framework

PseudoHyperkalemia:
 • Lab error
 • Traumatic venipuncture
 • Hemolysis, thrombocytosis, leukocytosis
 •
Hyperkalemia - Differential ... Diagnosis Framework ... deficiency or resistance ... Excretion: • ... #nephrology
Distal Renal Tubular Acidosis (RTA)  Type 1 

Totally scuppers the kidney's acidification mechanism. Will be
Distal Renal Tubular ... much easier to diagnosis ... impaired NH4+ secretion ... #Management #Nephrology ... #Causes #Differential
Hyperkalemia - Differential Diagnosis Framework

PseudoHyperkalemia:
 • Lab error
 • Traumatic venipuncture
 • Hemolysis, thrombocytosis, leukocytosis
 •
Hyperkalemia - Differential ... Diagnosis Framework ... deficiency or resistance ... Excretion: • ... #nephrology
Hypermagnesemia - Etiologies by Mechanism
Renal Failure 
Excessive Mg Administration 
 - Massive PO intake
by Mechanism Renal ... Hypermagnesemia #Differential ... #Diagnosis #High ... #Magnesium #Table ... #Causes #Management
Normal Anion-Gap Acidosis (NAGMA) - Differential Diagnosis Framework and Workup

NAGMA
- Chem, ABG or VBG
- Calculate Anion
Acidosis (NAGMA) - Differential ... Diagnosis Framework ... • Serum K high ... - Diarrhea - High ... #nephrology
Metabolic Alkalosis - Urinary Chloride Algorithm
Cl- responsive metabolic alkalosis
 • Kidney loss of Cl-
fibrosis Cl- resistant ... responsive and resistant ... urine #Algorithm #nephrology ... #differential # ... diagnosis
Distal Renal Tubular Acidosis
Distal RTA is the true Nephrogenic RTA and can be truly divided into
Distal Renal Tubular ... Ifosfamide, topiramate, CA ... distal RTA - A high ... Acidosis #RTA #diagnosis ... #differential