312 results
Hypoxia and Hypoxemia - Overview
Hypoxia - insufficient oxygen delivered to tissues to meet demands
Hypoxemia - low
O2 is inspired) PAO2 ... reaches the alveoli) PaO2 ... blood (measured on ABG ... Low SvO2 → Low PaO2 ... sepsis) - High PaO2
ABG vs VBG: Arterial vs Venous Blood Gases

ABG
PROS: Tells you exactly what the arterial environment looks
ABG vs VBG: Arterial ... Blood Gases ABG ... looks like (pH, PaCO2 ... serial exams #ABG ... Comparison #pH #pCO2
What's in a Blood Gas? VBG vs ABG

BOTTOM LINE: VBG is less painful, more easily obtained
VBG vs ABG BOTTOM ... LINE: VBG is less ... obtained than ABG ... EBM #Diagnosis #ABG ... Comparison #PH #PCO2
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 ... /0.8)] - PaO2 Simplified ... /0.8)] - PaO2 Normal ... Disease and more • Diffusion
Arterial Blood Gas (ABG) Analysis - Metabolic + Respiratory Acidosis + Alkalosis

pH ↓ pCO2 ↓ -
Arterial Blood Gas (ABG ... Alkalosis pH ↓ pCO2 ... acidosis pH ↑ pCO2 ... alkalosis pH ↑ pCO2 ... Arterial #BloodGas #ABG
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
DP-PCWP Coronary Perfusion ... -PECO2))/PaCO2 ... age-corrected PAO2 ... /R) | Pa02 80- ... ))+(Pa02*0.0031)
Acid Base Disorders - Blood Gas Interpretation

Steps for Blood Gas Interpretation: 
1. Acidemia or Alkalemia? 
2.
ABG And BMP Normal ... 7.35-7.45 • PaCO2 ... 35-45 mmHg • PaO2 ... - Rapid saline infusion ... Summary #Nephrology #ABG
Hepatopulmonary Syndrome - Diagnosis and Management Summary
A defect in arterial oxygenation due to a gas exchange
• Orthopnea - PaO2 ... Arterial blood gas (ABC ... Oxygenation defect - PaO2 ... supplemental oxygen if PaO2 ... transplant - Lizzie Aby
Approach to Acid Base Disorders - Evaluation and Differential Diagnosis
1) Start with the Anion Gap (AG).
2)
the Anion Gap (AG ... the change in AG ... Do you need an ABG ... approximates an ABG ... and ~5 mmHg to pCO2
Oxygen Saturation - Measurement Techniques and Limitations
 • Sp02 - Cutaneous pulse oximeter
 • SaO2 Calculated
pulse oximeter • SaO2 ... Point-of-care handheld ABG ... device • SaO2