3 results
Diagnostic approach to the admitted patient with possible COVID-19

Initial evaluation
- Chest X-ray
- Lung ultrasound (thorough "lawn-mower"
-19 Initial evaluation ... - Lung ultrasound ... look for focal a-lines ... - CBC with differential ... #algorithm #schema
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
Left Shunt - Anatomic ... Embolism, Obstructive Lung ... , Interstitial Lung ... UnremarkableLab #AA ... Hypoxia #hypoxemia #differential
Preoperative Risk Evaluation

Major Pre-Op Questions:
1. Does the patient have any modifiable risk factors that could be
Preoperative Risk Evaluation ... murmur 3/6) - Pulmonary ... event, follow ACC algorithm ... days before Pulmonary ... unless prior heart/lung