22 results
Hypokalemia - Differential Diagnosis Algorithm
Extra-renal Losses:
 • Normal Acid-Base: Low intake
 • Metabolic acidosis: Gl tract
• Normal Acid-Base ... acidosis: Gl tract ... Diagnosis #Algorithm #causes ... #potassium #low ... #nephrology
Metabolic Alkalosis - Urinary Chloride Algorithm
Cl- responsive metabolic alkalosis
 • Kidney loss of Cl-
, Gitelman syndrome ... poisoning Normal acid-base ... the indicated causes ... of sodium and potassium ... urine #Algorithm #nephrology
Metabolic Alkalosis - Differential Diagnosis Algorithm - Urinary Chloride
 • Cl- responsive metabolic alkalosis
diuretic use, Bartter syndrome ... , Gitelman syndrome ... acidosis: Chronic ... • Normal acid-base ... Diagnosis #Algorithm #causes
Acid Base Disorders - Blood Gas Interpretation

Steps for Blood Gas Interpretation: 
1. Acidemia or Alkalemia? 
2.
Acid Base Disorders ... (AG) = {Na - (Cl ... D-lactate (short bowel syndrome ... Diagnosis #Summary #Nephrology ... bloodgas #Acid #Base
Hypokalemia Evaluation Algorithm

Before evaluating hypokalemia, life threatening complications such as arrhythmias and paralysis should be looked
treated with IV potassium ... wasting from other causes ... suggests extra-renal causes ... acidosis: Proximal ... #nephrology #low
Causes of High-anion Gap and Non-anion Gap Metabolic Acidosis
Causes of High-anion Gap Acidosis:
 • Lactic acidosis
Non-anion Gap Metabolic ... Acidosis Causes ... Potassium-sparing ... ACE-Is and ARBs ... #nephrology
Causes of Metabolic Alkalosis: Differential Diagnosis
ECF volume contracted: urine chloride concentration <20 meq/L
 • Gastric alkalosis:
Causes of Metabolic ... chronic respiratory acidosis ... other • Severe potassium ... Differential #Diagnosis #Causes ... #nephrology
Hyperkalemia - Differential Diagnosis Framework

PseudoHyperkalemia:
 • Lab error
 • Traumatic venipuncture
 • Hemolysis, thrombocytosis, leukocytosis
 •
- Tumor lysis syndrome ... infusions) - Metabolic ... acidosis - Hyperkalemia ... differential #diagnosis #causes ... #nephrology
Hyperkalemia - Differential Diagnosis Framework

PseudoHyperkalemia:
 • Lab error
 • Traumatic venipuncture
 • Hemolysis, thrombocytosis, leukocytosis
 •
- Tumor lysis syndrome ... infusions) - Metabolic ... acidosis - Hyperkalemia ... differential #diagnosis #causes ... #nephrology
Secondary Causes of Hypertension - Differential Diagnosis Algorithm
Hypertension - BP > 140/90 (>130/80 for DM)
Hypertensive urgency
2), Diagnosis based ... on repeat clinic ... • Nephritic syndrome ... Unilateral RAS Metabolic ... HTN #Secondary #Nephrology