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diagnosis differential management causes algorithm nephrology metabolic respiratory criticalcare pulmonary alkalosis pathophysiology acidbase toxicology mnemonic comparison aniongap pharmacology treatment rta
Acid Base Disorders - Blood Gas Interpretation Steps for Blood Gas Interpretation: 1. Acidemia or Alkalemia? 2.
7.35-7.45 • PaCO2 ... 35-45 mmHg • PaO2 ... Metabolic: pH pCO2 ... ↓ ↓ Metabolic Acidosis ... For Metabolic Acidosis
Acid-Base Balance & ABG Normal Ranges Visualization #AcidBase #ABG #Medicine #Physiology #CriticalCare Base Excess BE -2 to
2 (4=metabolic acidosis ... ), paCO2 4.7-6 ... HCO3+Cl) 10-18 paO2
Acid-Base Balance & ABG Normal Ranges Visualization #AcidBase #ABG #Medicine #Physiology #CriticalCare Base Excess BE -2 to
2 (4=metabolic acidosis ... ), paCO2 4.7-6 ... HCO3+Cl) 10-18 paO2
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
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%
Causes of Lactate Elevation, Lactic Acidosis - Differential Diagnosis The most common causes of hyperlactatemia are usually:
Elevation, Lactic Acidosis ... Type A Lactic Acidosis ... - Hypoxemia (PaO2 ... Type B Lactic Acidosis ... Lactate #Lactic #Acidosis
Arterial Blood Gas (ABG) Analysis - Metabolic + Respiratory Acidosis + Alkalosis pH ↓ pCO2 ↓ -
+ Respiratory Acidosis ... ↓ - Metabolic acidosis ... pH ↑ pCO2 ↑ - ... - Respiratory acidosis ... #Compensation #acidosis
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
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
Acid-Base Disorders - Differential Diagnosis Algorithm Acidemia (pH < 7.35) • Metabolic Acidosis (HCO3 < 24mmol/L) CO2
• Metabolic Acidosis ... • Respiratory Acidosis ... (pCO2 > 40 mmHg ... Respiratory Alkalosis (pCO2
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