275 results
Acid Base Disorders - Blood Gas Interpretation

Steps for Blood Gas Interpretation: 
1. Acidemia or Alkalemia? 
2.
Disorders - Blood Gas Interpretation ... for Blood Gas Interpretation ... 7.35-7.45 • PaCO2 ... 35-45 mmHg • PaO2 ... Delta: Delta Interpretation
Arterial Blood Gas (ABG) Analysis - Metabolic + Respiratory Acidosis + Alkalosis

pH ↓ pCO2 ↓ -
Respiratory Acidosis + Alkalosis ... ↑ - Metabolic alkalosis ... Respiratory alkalosis ... ABG #Analysis #Interpretation ... Compensation #acidosis #alkalosis
Hypoxia and Hypoxemia - Overview
Hypoxia - insufficient oxygen delivered to tissues to meet demands
Hypoxemia - low
O2 is inspired) PAO2 ... reaches the alveoli) PaO2 ... Low SvO2 → Low PaO2 ... Low SvO2 → Low PaO2 ... sepsis) - High PaO2
Blood Gas Analysis and Interpretation
STEPS TO ANALYSIS
1. Look at PH. Alkalotic or acidotic?
Gas Analysis and Interpretation ... Alkalotic or acidotic ... - If alkalotic, ... - pCO2 (respiratory ... VBG #Analysis #Interpretation
Markers of Organ Dysfunction in Severe Sepsis 
Altered consciousness 
Confusion 
Psychosis 

Tachycardia 
Hypotension 
Altered CVP 
Altered
Altered CVP Altered PAOP ... Tachypnoea PaO2 ... <70mmHg SaO2 < ... 90% PaO2/FiO2 300%
Acid Base and Blood Gas Analysis
1. pH - What’s the primary disturbance?
2. pCO2 - What’s the
2. pCO2 - What’s ... the pCO2? ... production Respiratory alkalosis ... - Contraction alkalosis ... respiratory #bloodgas #interpretation
Arterial Blood Gas (ABG) Interpretation
 • AG/non-AG Metabolic Acidosis
 • AG Acidosis "Delta/Delta"
 • Metabolic Alkalosis
Blood Gas (ABG) Interpretation ... • Metabolic Alkalosis ... • Respiratory Alkalosis ... BloodGas #ABG #Interpretation ... acidbase #acidosis #alkalosis
Blood Gas (ABG) Interpretation and Acid-Base Pathology
1- Does the patient have an acidosis or an alkalosis?
Blood Gas (ABG) Interpretation ... acidosis or an alkalosis ... concomitant respiratory alkalosis ... AcidBase #ABG #Interpretation ... Metabolic #Acidosis #Alkalosis
Perform computations online at:
ScyMed.com
6th ED
ICU-card
«ICU, Formulas & Drugs»
HEMODYNAMIC PATTERNS
Condition
SAP
CVP

PAP PCWP

CO C(a-v)02 PVR

SVR
Hypovolemic shock
↓
↓
↓
↓
↓
↑
↑
↑
Cardiogenic shock
↓
1
↑
1

1
↑

Septic shock
↓
↓
↓
↓
↑
↓
↓
↓
Cardiac Tamponade
.
↑
↑
1
↓

→
↑
RV
-PECO2))/PaCO2 ... age-corrected PAO2 ... /R) | Pa02 80- ... ))+(Pa02*0.0031) ... )-(CvO2) Pa02
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
A-a gradient = PAO2 ... - PaO2 A-a gradient ... (Patm - 47) - (PaCO2 ... /0.8)] - PaO2 Simplified ... /0.8)] - PaO2 Normal