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Platypnea-Orthodeoxia Syndrome on Physical Exam The case of a patient with a diagnosis of cirrhosis and platypnea-orthodeoxia
there is a drop in SaO2 ... to 90% (and in paO2 ... PhysicalExam #clinical #video ... #respiratory #pulmonary
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 Hypoxia and Hypoxemia - Overview Hypoxia - insufficient oxygen delivered to tissues to meet demands Hypoxemia - low
O2 is inspired) PAO2 ... Low SvO2 → Low 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 -
/0.8)] - PaO2 Simplified ... Intracardiac, Pulmonary ... V/Q Mismatch: Pulmonary ... , Atelectasis, Pulmonary ... Diffusion Defect: Pulmonary
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%
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
Respiratory Oxygenation Cycle - Pathophysiology PO2 and PCO2 By @rev.med #Respiratory #Oxygenation #Cycle #circulation #pathophysiology
Pathophysiology PO2 ... and PCO2 By @rev.med
Hypoxemia vs Hypoxia Hypoxemia - Partial pressure of arterial oxygen (PaO2) is below normal Hypoxia - Insufficient oxygen
arterial oxygen (PaO2 ... compensate for low PaO2 ... diagnosis #comparison #pulmonary
Berlin Criteria for Acute Respiratory Distress Syndrome (ARDS) - Respiratory symptoms must have begun within one
consistent with pulmonary ... lung collapse, or pulmonary ... inspired oxygen (PaO2 ... - 200 mm Hg < PaO2 ... - 100 mm Hg < PaO2
Oxygen Delivery Equation DO2 = CO x {(1.39 x Hb x sO2) + (PaO2 x 0.03)} DO2 =
x Hb x sO2) + (PaO2 ... effective hemoglobin PaO2 ... in your hands = PaO₂ ... pathophysiology #pulmonary
Oxygen-Hemoglobin Dissociation Curve Left Shift (↓ O2 unloading to tissue), Left = Lower: • ↓ H+ (↑
+ (↑ pH) • ↓ PCO2 ... + (Acid) • ↑ PCO2 ... pathophysiology #pulmonary
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