318 results
Oxygen delivery & ABG interpretation made easier with this simple colour-coded table. Please share, and print
Devices #Interfaces #FiO2 ... FaceMask #NRB #FlowRates
Important Biostatistics and Epidemiology Equations

Sensitivity = TP / (TP + FN) = true positives / disease
TP + FN) = true positives ... disease absent Positive ... TP + FP) = true positives ... / all positives ... #calculations #diagnosis
Medications that Can Cause False Positives on Drug Tests

Urine drug screens (UDSs) are simple to use,
Can Cause False Positives ... yielding false-positive ... can cause false positives ... Amphetamine false positives ... #differential #diagnosis
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
A-a gradient = [FiO2 ... chest) • Low PiO2 ... Elevation, Low Fio2 ... #differential #diagnosis
Hypotension in Anesthesiology - Differential Diagnosis and Management 

Initial checklist: 
 - Verify BP (e.g. surgeon
- Differential Diagnosis ... - Increase FiO2 ... Head down position ... #Differential #Diagnosis
Cardiff COVID-19 Daily checklist - Matt Morgan
A daily checklist for critically ill #covid19 patients. Concentrates on
- FiO2 40%? ... - Is there a positive ... wean sedation if FiO2
Berlin Criteria for Acute Respiratory Distress Syndrome (ARDS) 
- Respiratory symptoms must have begun within one
inspired oxygen (PaO2/FiO2 ... mm Hg < PaO2 / FiO2 ... mm Hg < PaO2 / FiO2 ... Severe - PaO2 / FiO2 ... Definition #Criteria #Diagnosis
Mechanical ventilation in obese patients according to the i-STAR Algorithm
Intubate
 • Anticipate difficult airway management and
and non-invasive positive ... Gradually lower Fi02 ... recruitment • FiO2 ... desaturation prioritise FiO2
Nasal Oxygen Delivery Devices
Nasal cannula can be used to deliver supplemental O2. Conventional nasal cannula are
rates & moderate FiO2 ... achieving a higher FiO2 ... creates a small positive ... match demand so FiO2
Summary of Agents Potentially Contributing to False Positives on Urine Drug Screens (UDS)
Marijuana Metabolites
 • dronabinol,
Contributing to False Positives ... Rate of False Positives ... result in false positives ... enough to prevent positive ... Testing #Laboratory #diagnosis