42 results
Acid-Base Disorders - Differential Diagnosis Algorithm
Acidemia (pH < 7.35)
 • Metabolic Acidosis (HCO3 < 24mmol/L) CO2
HCO3 < 24mmol/L) CO2 ... Respiratory Acidosis (pCO2 ... Respiratory Alkalosis (pCO2 ... < 35 mmHg) #AcidBase ... Diagnosis #Algorithm #Causes
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 ... (Patm - 47) - (PaCO2 ... : Atelectasis, ARDS ... Mismatch: Pulmonary Edema
Understanding & Treating ARDS - Acute Respiratory Distress Syndrome

•  Timing - within one week of
Understanding & Treating ARDS ... process • Origin of Edema ... Impaired Oxygenation PaO2 ... @nickmmark #ARDS
Acute Respiratory Distress Syndrome – ARDS: Clinical Cheat Sheet

An acute diffuse, inflammatory lung injury, leading to
Distress Syndrome – ARDS ... with pulmonary edema ... 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 ... with pulmonary edema ... severity of the ARDS ... - 200 mm Hg < PaO2 ... >= 5cm H2O #ARDS
Diffuse consolidation
The most common cause of diffuse consolidation is pulmonary edema due to heart failure.
This is
The most common cause ... called cardiogenic edema ... from the various causes ... non-cardiogenic edema ... pulmonay infection, 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
Acute Hypoxemia - Differential Diagnosis
 • Hyperacute: Aspiration, Flash Pulmonary Edema, Mucous Plugging, Bronchospasm, Pulmonary Embolism,
Flash Pulmonary Edema ... - Physiologic: ARDS ... Atelectasis, Pulmonary Edema ... Differential #Diagnosis #causes
Pemberton's Sign caused by a Retrosternal Thyroid Goiter

Elevating the arms causes the previously flat neck veins
Pemberton's Sign caused ... Elevating the arms ... causes the previously ... PhysicalExam #clinical #video
Interstitial pneumonias
An acute reticular pattern is most frequently caused by interstitial edema due to cardiac heart
most frequently caused ... by interstitial edema ... The other cause ... manifestation of AIDS