830 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 ... #differential #diagnosis
Markers of Organ Dysfunction in Severe Sepsis 
Altered consciousness 
Confusion 
Psychosis 

Tachycardia 
Hypotension 
Altered CVP 
Altered
Altered CVP Altered PAOP ... Tachypnoea PaO2 ... 90% PaO2/FiO2 300% ... Protein C #Diagnosis ... #CriticalCare #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 ... /0.8)] - PaO2 Simplified ... /0.8)] - PaO2 Normal ... #differential #diagnosis
PLACO Mnemonic - Approach to Acid-Base Disorders
P - Determine the pH
L - Labs: PCO2 & HCO3
A
Approach to Acid-Base ... pH L - Labs: PCO2 ... AcidBase #Acid #Base ... #diagnosis #nephrology
Acid-Base Disorders - Differential Diagnosis Algorithm
Acidemia (pH < 7.35)
 • Metabolic Acidosis (HCO3 < 24mmol/L) CO2
Acid-Base Disorders ... - Differential Diagnosis ... Respiratory Acidosis (pCO2 ... Respiratory Alkalosis (pCO2 ... #Differential #Diagnosis
Acid Base Disorders Worksheet

Step 1: Gather the necessary data (Na+, CI-, HCO3-, PH, pCO2). Preferably, all
Acid Base Disorders ... CI-, HCO3-, PH, pCO2 ... Step 7: Make the diagnoses ... joshsteinbergMD #Acid #Base ... Disorders #Worksheet #diagnosis
Acid Base Compensation - Directions - If all three variables (pH, HCO2, pCO2) move in the
Acid Base Compensation ... variables (pH, HCO2, pCO2 ... #Diagnosis #Nephro
Platypnea-Orthodeoxia Syndrome on Physical Exam
The case of a patient with a diagnosis of cirrhosis and platypnea-orthodeoxia
Physical Exam The case ... patient with a diagnosis ... there is a drop in SaO2 ... to 90% (and in paO2
PROSEVA definition of ARDS
Thus, the PROSEVA trial essentially modifies the Berlin definition of ARDS, with the
requirement that the PaO2 ... requires that the PaO2 ... FiO2 ratio remain stable ... #Diagnosis #CriticalCare
Hepatopulmonary Syndrome
HPS - Diagnosis:
 1. Patients with liver disease
 2. Alveolar-arterial oxygen gradient (AaP02) >15 mmHg
Syndrome HPS - Diagnosis ... Moderate HPS: ≥ 60 PaO2 ... Severe HPS: ≥ 50 PaO2 ... Very severe HPS: PaO2 ... Hepatopulmonary #Syndrome #diagnosis