128 results
Hypoxia and Hypoxemia - Overview
Hypoxia - insufficient oxygen delivered to tissues to meet demands
Hypoxemia - low
O2 is inspired) PAO2 ... hypoxia) - Low PaO2 ... Low SvO2 → Low PaO2 ... Low SvO2 → Low PaO2 ... 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
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
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 Compensation - Directions - If all three variables (pH, HCO2, pCO2) move in the
variables (pH, HCO2, pCO2 ... Diagnosis #Nephro #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
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 ... platypnea-orthodeoxia syndrome ... there is a drop in SaO2 ... to 90% (and in paO2 ... #Orthodeoxia #Syndrome
Acid Base and Blood Gas Analysis
1. pH - What’s the primary disturbance?
2. pCO2 - What’s the
2. pCO2 - What’s ... the pCO2? ... MD @nickmmark #acidbase