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Acid Base Disorders - Formulas for appropriate metabolic and respiratory compensation

- Dr Amith Sreedharan - Consultant
Base Disorders - Formulas ... for appropriate metabolic ... #Respiratory #Metabolic ... #Compensation #Formula ... Diagnosis #Nephrology #AcidBase
Summary of metabolic compensation for respiratory acid-base disorders
#Diagnosis #Nephro #Respiratory #Acidosis #Alkalosis #Metabolic #Compensation #Formulas #Curbsiders
Summary of metabolic ... Acidosis #Alkalosis #Metabolic ... #Compensation #Formulas
Prediction of Compensatory Responses on Simple Acid-Base Disturbances

#acidbase #compensation #metabolic #respiratory #diagnosis #calculations #formulas #acidosis #alkalosis
Disturbances #acidbase ... #compensation #metabolic ... #calculations #formulas
#Diagnosis #Nephro #AcidBase #Disorders #Acidosis #Alkalosis #Metabolic #Respiratory #Algorithm #Curbsiders
Diagnosis #Nephro #AcidBase ... Acidosis #Alkalosis #Metabolic ... #Respiratory #Algorithm
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
Acid-Base Disorders - Differential Diagnosis Algorithm
Acidemia (pH < 7.35)
 • Metabolic Acidosis (HCO3 < 24mmol/L) CO2
Differential Diagnosis Algorithm ... pH < 7.35) • Metabolic ... pH > 7.45) • Metabolic ... < 35 mmHg) #AcidBase ... Differential #Diagnosis #Algorithm
Causes of Approach to Altered Level of Consciousness - Workup
Clinical Exam - Focal
 • Trauma
 •
Consciousness - Workup ... Refer to Blood Work ... Sections Bloodwork - Metabolic ... Bloodwork - No Metabolic ... #algorithm #Causes
Approach to Acid Base Disorders - Evaluation and Differential Diagnosis
1) Start with the Anion Gap (AG).
2)
done by using formulas ... • Anion Gap Metabolic ... Non-Anion Gap Metabolic ... Bicarb shift • Metabolic ... Disorders #Evaluation #workup
Acid-Base Disorders - Expected Compensation Equations

Metabolic Acidosis:
 • pCO2 = 1.5 x HCO3 + 8 ±
Compensation Equations Metabolic ... ± 2 (Winter’s formula ... pCO2 ↓ 1.2 Metabolic ... #Acid #Base #AcidBase ... #Compensation #Metabolic
QT/QTc- Interval
•	Start of Q-wave to end of the T-wave (time of ventricular depolarization + repolarization).
•	Life threatening
R-R interval (Works ... QTc: • Bazett formula ... • Fridericia formula ... • Rautaharju formula