19 results
Acid Base Disorders - Blood Gas Interpretation

Steps for Blood Gas Interpretation: 
1. Acidemia or Alkalemia? 
2.
Metabolic: pH pCO2 ... , pain, fever, hypoxia ... Classically” noted with pulmonary ... with associated hypoxia ... MDaniyalHashmi1 #AcidBase
Hypoxia and Hypoxemia - Overview
Hypoxia - insufficient oxygen delivered to tissues to meet demands
Hypoxemia - low
) PIO2 - atmospheric ... O2 is inspired) PAO2 ... Low SvO2 → Low PaO2 ... Low SvO2 → Low PaO2 ... #pulmonary #differential
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
Intracardiac, Pulmonary ... V/Q Mismatch: Pulmonary ... , Atelectasis, Pulmonary ... Diffusion Defect: Pulmonary ... #Hypoxia #hypoxemia
Arterial Blood Gas (ABG) Analysis - Metabolic + Respiratory Acidosis + Alkalosis

pH ↓ pCO2 ↓ -
Alkalosis pH ↓ pCO2 ... acidosis pH ↑ pCO2 ... alkalosis pH ↑ pCO2 ... ABG #Analysis #Interpretation ... #AcidBase #Diagnosis
Hypoxemia vs Hypoxia
Hypoxemia - Partial pressure of arterial oxygen (PaO2) is below normal
Hypoxia - Insufficient oxygen
Hypoxemia vs Hypoxia ... Hypoxemia - Partial ... arterial oxygen (PaO2 ... compensate for low PaO2 ... diagnosis #comparison #pulmonary
Acid Base and Blood Gas Analysis
1. pH - What’s the primary disturbance?
2. pCO2 - What’s the
2. pCO2 - What’s ... the pCO2? ... alkalosis drive • Hypoxemia ... MD @nickmmark #acidbase ... respiratory #bloodgas #interpretation
Capnography
Measurement of exhaled carbon dioxide can be used to confirm ETT placement, for safer procedural sedation,
monitor cardiac & pulmonary ... • PvCO2 - Mixed ... venous CO2 • ... #Capnography #interpretation ... patterns #diagnosis #pulmonary
Blood Gas (ABG) Interpretation and Acid-Base Pathology
1- Does the patient have an acidosis or an alkalosis?
Blood Gas (ABG) Interpretation ... Look at the pCO2 ... the change in pCO2 ... MSc @AmyChung #AcidBase ... #ABG #Interpretation
Basics of Waveform Capnography
Waveform capnography assesses ventilation by monitoring exhaled carbon dioxide
Can use measurement and morphology
data regarding pulmonary ... Assessing for CO2 ... output state - Pulmonary ... #Capnography #interpretation ... patterns #diagnosis #pulmonary
Berlin Criteria for Acute Respiratory Distress Syndrome (ARDS) 
- Respiratory symptoms must have begun within one
consistent with pulmonary ... lung collapse, or pulmonary ... severity of the hypoxemia ... - 200 mm Hg < PaO2 ... - 100 mm Hg < PaO2