47 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 ... Hypoventilation Syndrome ... Hepatopulmonary Syndrome ... : Atelectasis, ARDS
Understanding & Treating ARDS - Acute Respiratory Distress Syndrome

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

An acute diffuse, inflammatory lung injury, leading to
Respiratory Distress Syndrome ... on CT or CXR ● PaO2 ... there is no clear cause ... the underlying cause ... RespiratoryDistress #Syndrome
Berlin Criteria for Acute Respiratory Distress Syndrome (ARDS) 
- Respiratory symptoms must have begun within one
Respiratory Distress Syndrome ... (ARDS) - Respiratory ... severity of the ARDS ... >= 5cm H2O #ARDS ... Respiratory #Distress #Syndrome
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 ... D-lactate (short bowel syndrome ... MDaniyalHashmi1 #AcidBase
Causes of Small Bowel Bleeding - Differential Diagnosis
Common Causes:
 • Under age 40 years: Inflammatory Bowel
Causes of Small ... Diagnosis Common Causes ... NSAID ulcers Rare Causes ... Kaposi's sarcoma with AIDS ... 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 ... superior vena cava syndrome ... neck #mass #SVC #Syndrome
Causes of Respiratory Distress in the Newborn - Differential Diagnosis Algorithm
Premature Newborn
 - Normal CXR:
Causes of Respiratory ... Respiratory Distress Syndrome ... (RDS)* • ... Respiratory Distress Syndrome ... Diagnosis #Algorithm #Causes
Causes of Recurrent Pregnancy Loss - Differential Diagnosis Algorithm
Environmental:
 • Toxin (organic solvents, mercury, lead)
 •
Causes of Recurrent ... Antiphospholipid syndrome ... hyperthyroidism • PCOS ... • Asherman's Syndrome ... Diagnosis #Algorithm #Causes