31 results
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
A-a gradient = PAO2 ... : Atelectasis, ARDS ... Embolism, Obstructive Lung ... Disease and more • Diffusion ... , Interstitial Lung
Hypoxemic Respiratory Failure - Differential Diagnosis Framework
DECREASED INSPIRED OXYGEN
 • Low PATM Can decrease first part
HYPOVENTILATION • Rising PaCO2 ... gas equation • Causes ... : Interstitial lung ... ventilation (V) in the lungs ... bypassing the lungs
Acute Respiratory Distress Syndrome – ARDS: Clinical Cheat Sheet

An acute diffuse, inflammatory lung injury, leading to
, inflammatory lung ... permeability, lung ... on CT or CXR ● PaO2 ... there is no clear cause ... the underlying cause
Berlin Criteria for Acute Respiratory Distress Syndrome (ARDS) 
- Respiratory symptoms must have begun within one
Distress Syndrome (ARDS ... explained by pleural effusions ... lobar collapse, lung ... severity of the ARDS ... >= 5cm H2O #ARDS
Pulmonary Pathology and Associated Lung Ultrasound Findings
Pneumothorax:
 - No lung sliding/barcode sign
 - Lung point (hard
pleura in severe cases ... Possible bilateral effusion ... Distress Syndrome (ARDS ... submassive PE) POCUS ... #POCUS #ultrasound
Radiographic appearances of pulmonary diseases in HIV/AIDS Patients
 • Diffuse Interstitial Infiltrates: Pneumocystis jirovecii, M.tuberculosis, Histoplasma
diseases in HIV/AIDS ... Pulmonary edema; ARDS ... complex • Nodular/Masses ... Actinomyces spp., NHL; Lung ... Parapneumonic effusion
Bilateral B-Lines in case of Pneumonia on Lung POCUS

Young healthy pt with fever/dyspnea. POCUS lung exam
Bilateral B-Lines in case ... POCUS lung exam ... Pulmonary edema, ARDS ... Lung POCUS shows ... Lung POCUS invaluable
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 ... - Rapid saline infusion ... or restrictive lung
Hepatopulmonary Syndrome - Diagnosis and Management Summary
A defect in arterial oxygenation due to a gas exchange
absence of intrinsic lung ... disease Caused ... either due to a diffusion-perfusion ... • Orthopnea - PaO2 ... on radioactive lung
Our patient was exposed to burning sumac smoke while clearing out her yard .  Toxicodendron
the smoke can cause ... lining of the lungs ... causing ARDS. ... #Clinical #EM #Tox