13 results
Approach to Acid Base Disorders - Evaluation and Differential Diagnosis
1) Start with the Anion Gap (AG).
2)
Disorders - Evaluation ... Obstructive Lung Disease ... Neuromuscular Disease ... #workup #Differential ... #Diagnosis #acidosis
Hypokalemia - Differential Diagnosis Algorithm
Extra-renal Losses:
 • Normal Acid-Base: Low intake
 • Metabolic acidosis: Gl tract
- Differential Diagnosis ... • Normal Acid-Base ... acidosis: Gl tract ... Syndrome • HTN, High ... potassium #low #nephrology
Acid Base Disorders - Blood Gas Interpretation

Steps for Blood Gas Interpretation: 
1. Acidemia or Alkalemia? 
2.
Acid Base Disorders ... - Differential Diagnosis ... restrictive lung disease ... #Summary #Nephrology ... bloodgas #Acid #Base
Metabolic Alkalosis - Urinary Chloride Algorithm
Cl- responsive metabolic alkalosis
 • Kidney loss of Cl-
poisoning Normal acid-base ... diarrhea, a high ... acidosis, a high ... urine #Algorithm #nephrology ... #differential #diagnosis
Hypokalemia Differential Algorithm
Acidosis
 - RTA
 - Diarrhea
pH Normal 
 1. Decreased Mg 
 2. Intracellular Shift
Differential Algorithm Acidosis ... Metabolic alkalosis ... Differential #Algorithm #Diagnosis ... #Causes #Workup ... #Nephrology
Hypokalemia Evaluation Algorithm

Before evaluating hypokalemia, life threatening complications such as arrhythmias and paralysis should be looked
urinary losses: • High ... Pressure: - Metabolic ... acidosis: Proximal ... #Hypokalemia #diagnosis ... differential #potassium #nephrology
Normal Anion-Gap Acidosis (NAGMA) - Differential Diagnosis Framework and Workup

NAGMA
- Chem, ABG or VBG
- Calculate Anion
- Differential Diagnosis ... Framework and Workup ... - Diarrhea - High ... #Metabolic #NAGMA ... #Workup #nephrology
Causes of High-anion Gap and Non-anion Gap Metabolic Acidosis
Causes of High-anion Gap Acidosis:
 • Lactic acidosis
Causes of High-anion ... of High-anion Gap ... progressive kidney disease ... #diagnosis #causes ... #nephrology
Atlas of Urine Microscopy Findings
 • Epithelial cells - Normal
 • Renal tubular cells - Acute
seen if urine sample ... - Up to 3 per high-power ... normal; >3 per high-power ... crystals may indicate metabolic ... #nephrology #casts
Hyperkalemia - Differential Diagnosis Framework

PseudoHyperkalemia:
 • Lab error
 • Traumatic venipuncture
 • Hemolysis, thrombocytosis, leukocytosis
 •
- Differential Diagnosis ... infusions) - Metabolic ... acidosis - Hyperkalemia ... • Addison’s disease ... #nephrology