23 results
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
(assumes Room Air ... Right to Left Shunt ... - Anatomic Shunt ... - Physiologic Shunt ... Disease and more • Diffusion
Hepatopulmonary Syndrome - Diagnosis and Management Summary
A defect in arterial oxygenation due to a gas exchange
Diagnosis and Management ... 1) or anatomic shunt ... Arterial blood gas (ABC ... cirrhosis • Intra-pulmonary ... scanning or pulmonary
Hypoxemia and Dyspnea - Rapid Response Management

1) Ask for vitals en route
2) Stabilize: Nasal canula 
3)
Rapid Response Management ... 1) Ask for vitals ... ) Examination: Pulmonary ... #criticalcare # ... pulmonary #Hypoxia
Clinical Management for Three Common Causes of Shock 
HEMORRHAGIC SHOCK
 • Ensure adequate ventilation and oxygenation.
Clinical Management ... of poor organ perfusion ... pressure (PEEP) for pulmonary ... #Shock #Management ... #CriticalCare
Mask Oxygen Delivery Devices

Simple Mask aka Hudson's Mask:
 • Flow 6-10 LPM
 • FiO2 35-50%
Face Tent:
Mask Oxygen Delivery ... aka Hudson's Mask ... oxygen ambient air ... Delivery #Devices #management ... #pulmonary #criticalcare
CPAP Troubleshooting Tips
1. Wrong size/style mask → try a different mask, nasal pillows
2. Trouble getting used
try a different mask ... tolerating forced air ... noise → check air ... Troubleshooting #Tips #management ... #problems #pulmonary
Severe Asthma Exacerbation
Signs of a Severe Asthma Exacerbation:
 • Vitals: ↑HR ↑RR ↓SpO2
 • High work
wheezing OR poor air ... #Exacerbation #CriticalCare ... #pulmonary #ventilation ... #mechanical #management
Oxygen Delivery by Device

Nasal Cannula 
• Indicated for low-flow, low-percentage supplemental oxygen. 
• Flow rate of
Nonrebreather Mask ... entrainment of room air ... Venturi Mask (venti-mask ... Delivery #FiO2 #Pulmonary ... Equipment #Devices #Management
Shock Types - Classification
State of cellular and tissue hypoxia due to: reduced oxygen delivery, increased oxygen
diminished tissue perfusion ... failure from massive pulmonary ... embolism or severe pulmonary ... types #diagnosis #management ... #criticalcare #
Shock - Diagnosis and Management Summary
 • Hypotension: SBP<90, SBP drop >40, MAP<65 (Normotension, HTN possible
Diagnosis and Management ... Consider IL NS/LR infusion ... Tamponade - Pulmonary ... Shock #Diagnosis #Management ... #Summary #criticalcare