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diagnosis table clinical differential management respiratory criticalcare radiology radiologyassistant acidosis abg alkalosis causes interpretation ctchest lung pocus copd oxygen pathophysiology
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 ... sepsis) - High PaO2 ... Hypoxemia #summary #pulmonary
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 ... Intracardiac, Pulmonary ... V/Q Mismatch: Pulmonary
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
→ ↓ → →↑ Pulmonary ... +2PDP)/3 Mean Pulmonary ... MPAP-WP)*79.92)/CO Pulmonary ... = 1.36 cmH20 PULMONARY ... age-corrected PAO2
Arterial Blood Gas (ABG) Analysis - Metabolic + Respiratory Acidosis + Alkalosis pH ↓ pCO2 ↓ -
Alkalosis pH ↓ pCO2 ... acidosis pH ↑ pCO2 ... alkalosis pH ↑ pCO2 ... alkalosis pH ↓ pCO2 ... Interpretation #AcidBase
Hypoxemia vs Hypoxia Hypoxemia - Partial pressure of arterial oxygen (PaO2) is below normal Hypoxia - Insufficient oxygen
arterial oxygen (PaO2 ... compensate for low PaO2 ... differential #diagnosis #comparison ... #pulmonary
PLACO Mnemonic - Approach to Acid-Base Disorders P - Determine the pH L - Labs: PCO2 & HCO3 A
pH L - Labs: PCO2 ... jadav_md #PLACO #AcidBase
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
Acid Base Compensation - Directions - If all three variables (pH, HCO2, pCO2) move in the
variables (pH, HCO2, pCO2 ... Diagnosis #Nephro #AcidBase
Respiratory Acid-Base Disorders - Diagnosis Algorithm #Respiratory #AcidBase #Disorders #Diagnosis #Algorithm #Pulmonary #Acidosis #Alkalosis
#Respiratory #AcidBase ... Diagnosis #Algorithm #Pulmonary
ABG vs VBG: Arterial vs Venous Blood Gases ABG PROS: Tells you exactly what the arterial environment looks
looks like (pH, PaCO2 ... #Correlation #Comparison ... #pH #pCO2 #Diagnosis
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