11 results
Acid-Base Disorders - Differential Diagnosis Algorithm
Acidemia (pH < 7.35)
 • Metabolic Acidosis (HCO3 < 24mmol/L) CO2
Respiratory Acidosis (pCO2 ... • Metabolic Alkalosis ... • Respiratory Alkalosis ... (pCO2 < 35 mmHg ... ) #AcidBase #
Arterial Blood Gas (ABG) Analysis - Metabolic + Respiratory Acidosis + Alkalosis

pH ↓ pCO2 ↓ -
pH ↓ pCO2 ↓ ... acidosis pH ↑ pCO2 ... pH ↑ pCO2 ↓ - ... pH ↓ pCO2 ↑ - ... Interpretation #AcidBase
Acid Base Compensation - Directions - If all three variables (pH, HCO2, pCO2) move in the
variables (pH, HCO2 ... , pCO2) move in ... Diagnosis #Nephro #AcidBase ... #Acidosis #Alkalosis
Acid Base and Blood Gas Analysis
1. pH - What’s the primary disturbance?
2. pCO2 - What’s the
2. pCO2 - What’s ... the pCO2? ... - Contraction alkalosis ... MD @nickmmark #acidbase ... #workup #algorithm
Blood Gas (ABG) Interpretation and Acid-Base Pathology
1- Does the patient have an acidosis or an alkalosis?
acidosis or an alkalosis ... concomitant respiratory alkalosis ... need to do more work ... MSc @AmyChung #AcidBase ... Metabolic #Acidosis #Alkalosis
Acid-Base Disorders - Expected Compensation Equations

Metabolic Acidosis:
 • pCO2 = 1.5 x HCO3 + 8 ±
Acidosis: • pCO2 ... 1.2 Metabolic Alkalosis ... Respiratory Alkalosis ... #Acid #Base #AcidBase ... Respiratory #Acidosis #Alkalosis
Acid Base Disorders - Blood Gas Interpretation

Steps for Blood Gas Interpretation: 
1. Acidemia or Alkalemia? 
2.
7.35-7.45 • PaCO2 ... 35-45 mmHg • PaO2 ... Metabolic: pH pCO2 ... ↑ ↑ Metabolic alkalosis ... MDaniyalHashmi1 #AcidBase
Approach to Acid Base Disorders - Evaluation and Differential Diagnosis
1) Start with the Anion Gap (AG).
2)
more acidotic or alkalotic ... and ~5 mmHg to pCO2 ... • Metabolic Alkalosis ... • Respiratory Alkalosis ... Disorders #Evaluation #workup
Intraoperative Patient Fire - Guidelines for Crises in Anaesthesia
Evidence of fire (smoke, heat, odour, flash, flame)
fire • Bring CO2 ... gauze • Use CO2 ... Intraoperative #Checklist ... Diagnosis #Management #Workup
Cardiac Arrest - Guidelines for Crises in Anaesthesia

The probable cause is one or more of: something
• If expired CO2 ... CardiacArrest #Checklist ... Intraoperative #Checklist ... Diagnosis #Management #Workup