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diagnosis differential algorithm management nephrology clinical neurology symptoms signs cardiology endocrinology hematology pediatrics pulmonary treatment peds ophthalmology physicalexam dermatology video
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 ... differential #diagnosis #causes ... #pathophysiology
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 ... Hypoventilation Syndrome ... Hepatopulmonary Syndrome
Respiratory Oxygenation Cycle - Pathophysiology PO2 and PCO2 By @rev.med #Respiratory #Oxygenation #Cycle #circulation #pathophysiology
Oxygenation Cycle - Pathophysiology ... PO2 and PCO2 By ... #circulation #pathophysiology
Hepatopulmonary Syndrome - Illness Script HPS is a pulmonary disorder of chronic liver disease characterized by a
Hepatopulmonary Syndrome ... abnormalities PATHOPHYSIOLOGY ... arteriovenous shunting causes ... - decrease in PaO ... resolution of syndrome
Hepatopulmonary Syndrome HPS - Diagnosis: 1. Patients with liver disease 2. Alveolar-arterial oxygen gradient (AaP02) >15 mmHg
Hepatopulmonary Syndrome ... Moderate HPS: ≥ 60 PaO2 ... Severe HPS: ≥ 50 PaO2 ... Very severe HPS: PaO2 ... Hepatopulmonary #Syndrome
Platypnea-Orthodeoxia Syndrome on Physical Exam The case of a patient with a diagnosis of cirrhosis and platypnea-orthodeoxia
Platypnea-Orthodeoxia Syndrome ... Physical Exam The case ... platypnea-orthodeoxia syndrome ... to 90% (and in paO2 ... #Orthodeoxia #Syndrome
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 Berlin Criteria for Acute Respiratory Distress Syndrome (ARDS) - Respiratory symptoms must have begun within one
Respiratory Distress Syndrome ... inspired oxygen (PaO2 ... - 200 mm Hg < PaO2 ... - 100 mm Hg < PaO2 ... Respiratory #Distress #Syndrome
ABG vs VBG: Arterial vs Venous Blood Gases ABG PROS: Tells you exactly what the arterial environment looks
vs Venous Blood Gases ... looks like (pH, PaCO2 ... Comparison #pH #pCO2
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 ... D-lactate (short bowel syndrome ... Acetazolamide Causes
Causes of Erythema Nodosum - Mnemonic NO cause found in 60% of cases Drugs (antibiotics e.g., sulfonamides, amoxicillin) Oral
Causes of Erythema ... Mnemonic NO cause ... found in 60% of cases ... Sarcoidosis or Lofgren's syndrome ... Nodosum #Mnemonic #Causes
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