30 results
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 ... Weakness, Loss of Chest ... Elasticity (flail chest ... : Atelectasis, ARDS
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 ... Diagnosis #Algorithm #Causes
Berlin Criteria for Acute Respiratory Distress Syndrome (ARDS) 
- Respiratory symptoms must have begun within one
Distress Syndrome (ARDS ... be present on a chest ... severity of the ARDS ... - 200 mm Hg < PaO2 ... >= 5cm H2O #ARDS
Acute Respiratory Distress Syndrome – ARDS: Clinical Cheat Sheet

An acute diffuse, inflammatory lung injury, leading to
Distress Syndrome – ARDS ... on CT or CXR ● PaO2 ... there is no clear cause ... the underlying cause ... days after dx of ARDS
Acid Base Disorders - Blood Gas Interpretation

Steps for Blood Gas Interpretation: 
1. Acidemia or Alkalemia? 
2.
7.35-7.45 • PaCO2 ... 35-45 mmHg • PaO2 ... Metabolic: pH pCO2 ... Acetazolamide Causes ... MDaniyalHashmi1 #AcidBase
Causes of Chronic Dyspnea - Differential Diagnosis Algorithm
Pericardial
 • Effusion
 • Cardiac Tamponade*
 • Constriction
Myocardial
 •
Causes of Chronic ... Pleural Thickening/Masses ... Chest Wall Abnormalities ... Pneumonia • ARDS ... Diagnosis #Algorithm #Causes
COVID-19 Chest CT - Case 7 - This one looks like full on ARDS

Batch of COVID-19
COVID-19 Chest CT ... looks like full on ARDS ... with fibrosis/ARDS ... COVID19 #SARSCoV2 #CTChest ... #CoronaVirus #ARDS
Our patient was exposed to burning sumac smoke while clearing out her yard .  Toxicodendron
the smoke can cause ... lungs causing ARDS ... Tox #Radiology #CTChest
Uncommon Causes of Noncardiogenic Pulmonary Edema (NCPE) - Differential Diagnosis Framework

High Altitude Pulmonary Edema:
 • Accumulation
Uncommon Causes ... dissolved in the PaO2 ... respiratory failure or ARDS ... infiltrates on chest ... scattered crackles, chest
The Berlin Definition of Acute Respiratory Distress Syndrome (ARDS)

Chest imaging - Bilateral opacities—not fully explained by
Distress Syndrome (ARDS ... ) Chest imaging ... - 200 mm Hg < PaO2 ... - 100 mm Hg < PaO2 ... #CriticalCare #ARDS