27 results
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 ... Classically” noted with pulmonary ... MDaniyalHashmi1 #AcidBase ... Summary #Nephrology #ABG
Hypoxia and Hypoxemia - Overview
Hypoxia - insufficient oxygen delivered to tissues to meet demands
Hypoxemia - low
blood (measured on ABG ... Low SvO2 → Low PaO2 ... sepsis) - High PaO2 ... Hypoxemia #summary #pulmonary ... differential #diagnosis #causes
Arterial Blood Gas (ABG) Analysis - Metabolic + Respiratory Acidosis + Alkalosis

pH ↓ pCO2 ↓ -
Arterial Blood Gas (ABG ... acidosis pH ↑ pCO2 ... alkalosis pH ↑ pCO2 ... Arterial #BloodGas #ABG ... Interpretation #AcidBase
ABG vs VBG: Arterial vs Venous Blood Gases

ABG
PROS: Tells you exactly what the arterial environment looks
ABG vs VBG: Arterial ... vs Venous Blood Gases ... ABG PROS: Tells ... looks like (pH, PaCO2 ... Comparison #pH #pCO2
Acid-Base Disorders - Differential Diagnosis Algorithm
Acidemia (pH < 7.35)
 • Metabolic Acidosis (HCO3 < 24mmol/L) CO2
Respiratory Acidosis (pCO2 ... Respiratory Alkalosis (pCO2 ... < 35 mmHg) #AcidBase ... Diagnosis #Algorithm #Causes
Oxygen Saturation - Measurement Techniques and Limitations
 • Sp02 - Cutaneous pulse oximeter
 • SaO2 Calculated
pulse oximeter • SaO2 ... Point-of-care handheld ABG ... device • SaO2 ... #Measurement #pulmonary
Blood Gas (ABG) Interpretation and Acid-Base Pathology
1- Does the patient have an acidosis or an alkalosis?
Blood Gas (ABG) ... Look at the pCO2 ... the change in pCO2 ... MSc @AmyChung #AcidBase ... #ABG #Interpretation
Severe Asthma Exacerbation
Signs of a Severe Asthma Exacerbation:
 • Vitals: ↑HR ↑RR ↓SpO2
 • High work
poor air flow • ABG ... : - High pCO2 ... Abnormally normal ABG ... #CriticalCare #pulmonary
Hepatopulmonary Syndrome - Diagnosis and Management Summary
A defect in arterial oxygenation due to a gas exchange
lung disease Caused ... • Orthopnea - PaO2 ... cirrhosis • Intra-pulmonary ... perfusion scanning or pulmonary ... Oxygenation defect - PaO2
Hypoxemic Respiratory Failure - Differential Diagnosis Framework
DECREASED INSPIRED OXYGEN
 • Low PATM Can decrease first part
HYPOVENTILATION • Rising PaCO2 ... lung diseases, pulmonary ... asthma, COPD, pulmonary ... shunting (eg, pulmonary ... Differential #Diagnosis #pulmonary