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ultrasound echocardiogram cardiology management radiology pulmonary lung msk a4c differential abdominal signs symptoms sign effusion plax algorithm pathophysiology aortic syndrome
Acid-Base Disorders - Differential Diagnosis Algorithm Acidemia (pH < 7.35) • Metabolic Acidosis (HCO3 < 24mmol/L) CO2
- Differential Diagnosis ... HCO3 < 24mmol/L) CO2 ... Respiratory Acidosis (pCO2 ... Respiratory Alkalosis (pCO2 ... #Differential #Diagnosis
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 ... Level) [150- (PaCO2 ... #differential #diagnosis
Acid Base Compensation - Directions - If all three variables (pH, HCO2, pCO2) move in the
variables (pH, HCO2 ... , pCO2) move in ... #Diagnosis #Nephro
Capnography Measurement of exhaled carbon dioxide can be used to confirm ETT placement, for safer procedural sedation,
- Alveolar CO2 ... • PvCO2 - Mixed ... venous CO2 • ... PaCO2 - Arterial ... waveforms #patterns #diagnosis
What's in a Blood Gas? VBG vs ABG BOTTOM LINE: VBG is less painful, more easily obtained
very well, and PvCO2 ... #EBM #Diagnosis ... Comparison #PH #PCO2
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 #Diagnosis
ABG vs VBG: Arterial vs Venous Blood Gases ABG PROS: Tells you exactly what the arterial environment looks
looks like (pH, PaCO2 ... Comparison #pH #pCO2 ... #Diagnosis #Differences
Acid Base and Blood Gas Analysis 1. pH - What’s the primary disturbance? 2. pCO2 - What’s the
2. pCO2 - What’s ... the pCO2? ... Medications, Central, ↑ CO2 ... workup #algorithm #diagnosis
Basics of Waveform Capnography Waveform capnography assesses ventilation by monitoring exhaled carbon dioxide Can use measurement and morphology
pathophysiology CLINICAL ... Assessing for CO2 ... Transition as CO2 ... WAVEFORM - Critical ... interpretation #patterns #diagnosis
Hypoxia and Hypoxemia - Overview Hypoxia - insufficient oxygen delivered to tissues to meet demands Hypoxemia - low
type of hypoxia) PIO2 ... O2 is inspired) PAO2 ... hypoxia) - Low PaO2 ... Low SvO2 → Low PaO2 ... #differential #diagnosis
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