77 results
ABG vs VBG: Arterial vs Venous Blood Gases

ABG
PROS: Tells you exactly what the arterial environment looks
ABG vs VBG: Arterial ... looks like (pH, PaCO2 ... serial exams #ABG ... #Correlation #Comparison ... #pH #pCO2 #Diagnosis
Hypoxia and Hypoxemia - Overview
Hypoxia - insufficient oxygen delivered to tissues to meet demands
Hypoxemia - low
O2 is inspired) PAO2 ... blood (measured on ABG ... Low SvO2 → Low PaO2 ... blood loss) or abnormal ... summary #pulmonary #differential
What's in a Blood Gas? VBG vs ABG

BOTTOM LINE: VBG is less painful, more easily obtained
VBG vs ABG BOTTOM ... obtained than ABG ... EBM #Diagnosis #ABG ... #Versus #Comparison ... #PH #PCO2 #Studies
Acid Base Disorders - Blood Gas Interpretation

Steps for Blood Gas Interpretation: 
1. Acidemia or Alkalemia? 
2.
Differentials? ... ABG And BMP Normal ... 35-45 mmHg • PaO2 ... acidosis Step 5 - Differential ... #differential
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 Normal ... A-a gradient to normal ... Hypoxia #hypoxemia #differential
Hypoxemia vs Hypoxia
Hypoxemia - Partial pressure of arterial oxygen (PaO2) is below normal
Hypoxia - Insufficient oxygen
arterial oxygen (PaO2 ... ) is below normal ... compensate for low PaO2 ... hypoxia #hypoxemia #differential ... #diagnosis #comparison
Oxygen Saturation - Measurement Techniques and Limitations
 • Sp02 - Cutaneous pulse oximeter
 • SaO2 Calculated
pulse oximeter • SaO2 ... Point-of-care handheld ABG ... device • SaO2 ... pulmonary #diagnosis #comparison
Approach to Acid Base Disorders - Evaluation and Differential Diagnosis
1) Start with the Anion Gap (AG).
2)
Evaluation and Differential ... Do you need an ABG ... and ~5 mmHg to pCO2 ... Differential Diagnosis ... Evaluation #workup #Differential
Normal Anion-Gap Acidosis (NAGMA) - Differential Diagnosis Framework and Workup

NAGMA
- Chem, ABG or VBG
- Calculate Anion
Normal Anion-Gap ... Acidosis (NAGMA) - Differential ... NAGMA - Chem, ABG ... or VBG - Calculate ... Metabolic #NAGMA #Differential
Severe Asthma Exacerbation
Signs of a Severe Asthma Exacerbation:
 • Vitals: ↑HR ↑RR ↓SpO2
 • High work
poor air flow • ABG ... : - High pCO2 ... - Abnormally normal ... ABG with increased