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Acid Base Disorders - Formulas for appropriate metabolic and respiratory compensation

- Dr Amith Sreedharan - Consultant
Acid Base Disorders ... - Formulas for ... appropriate metabolic ... #Compensation #Formula ... Diagnosis #Nephrology #AcidBase
#Diagnosis #Nephro #AcidBase #Disorders #Acidosis #Alkalosis #Metabolic #Respiratory #Algorithm #Curbsiders
Diagnosis #Nephro #AcidBase ... #Disorders #Acidosis ... #Alkalosis #Metabolic ... #Respiratory #Algorithm
Causes of Approach to Altered Level of Consciousness - Workup
Clinical Exam - Focal
 • Trauma
 •
of Approach to Altered ... Sections Bloodwork - Metabolic ... Bloodwork - No Metabolic ... Encephalitis #Altered ... #algorithm #Causes
Acid-Base Disorders - Differential Diagnosis Algorithm
Acidemia (pH < 7.35)
 • Metabolic Acidosis (HCO3 < 24mmol/L) CO2
Acid-Base Disorders ... Differential Diagnosis Algorithm ... pH < 7.35) • Metabolic ... pH > 7.45) • Metabolic ... < 35 mmHg) #AcidBase
Acid Base and Blood Gas Analysis
1. pH - What’s the primary disturbance?
2. pCO2 - What’s the
• Salicylates Metabolic ... or Cushing’s) Metabolic ... non anion gap metabolic ... MD @nickmmark #acidbase ... #workup #algorithm
Approach to Acid Base Disorders - Evaluation and Differential Diagnosis
1) Start with the Anion Gap (AG).
2)
Approach to Acid Base Disorders ... chronic) of the disorder ... done by using formulas ... #Acid #Base #Disorders ... #Evaluation #workup
Acid-Base Disorders - Expected Compensation Equations

Metabolic Acidosis:
 • pCO2 = 1.5 x HCO3 + 8 ±
Acid-Base Disorders ... ± 2 (Winter’s formula ... pCO2 ↓ 1.2 Metabolic ... #Acid #Base #AcidBase ... #Disorders #Compensation
Hemolytic Anemia - Differential Diagnosis Algorithm
 • Sickle cells - Consider sickle cell disease (diverse genotypes):
Differential Diagnosis Algorithm ... defects, Glutathione metabolism ... Consider RBC membrane disorder ... Differential #Diagnosis #Algorithm ... #workup #hematology