10 results
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
Hypoventilation: CNS ... Hypoventilation Syndrome ... Hepatopulmonary Syndrome ... Embolism, Obstructive Lung ... , Interstitial Lung
Noncardiogenic Pulmonary Edema - Differential Diagnosis Framework

NCPE Pathophysiology:
Noncardiogenic pulmonary edema occurs because of excessive pulmonary capillary
acute cardiac disease ... ECHO: • Normal ... respiratory distress syndrome ... Transfusion-related acute lung ... differential #diagnosis #cardiology
Pulmonary Renal Syndromes - OnePager Summary
Autoimmune ANCA vasculitis (AAV): GPA (granulomatous with polyangiitis), EGPA (eosinophilic granulomatosis
life-threatening diseases ... Inflammatory eye disease ... recent DAN) • EMG/NCS ... sparing of the lung ... differential #diagnosis #management
Elevated Lactate Dehydrogenase (LDH) - Differential Diagnosis Framework

LDH is a cytoplasmic enzyme present in tissues throughout
upon damage • Normal ... Prosthetic valves Lung ... • Pulmonary infarction ... Pneumonia • Other lung ... Periodic paralyses CNS
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
Diagnosis Framework Disease ... angioinvasive disease ... Lymphadenopathy, CNS ... Infections #HIV #AIDS #pulmonary ... differential #diagnosis #infectiousdiseases
Sjogren's Syndrome Overview

Epidemiology:
• F > M: 9:1
• 5-6th Decades (can be any age)

Autoimmune exocrinopathy multisystemic disease
• 8%-27% for CNS ... : • 10%-15% Pulmonary ... , INC risk PE, Pulmonary ... MALT Lymphoma • Lung ... Rheumatology #Diagnosis #Management
Abnormalities in Rate and Rhythm of Breathing 
Normal 
The respiratory rate is about 14—20 per min
disease, pleuritic ... hyperventilation syndrome—a ... Breathing #Patterns #Pulmonary ... Abnormalities #Abnormal ... #Diagnosis #PhysicalExam
Acid Base Disorders - Blood Gas Interpretation

Steps for Blood Gas Interpretation: 
1. Acidemia or Alkalemia? 
2.
D-lactate (short bowel syndrome ... Classically” noted with pulmonary ... acidosis: - CNS ... or restrictive lung ... disease (COPD,
Mycoses

HISTOPLASMOSIS
• Inhalation of conidia → Yeast → travel to lymph nodes → spread in body
• Bird
especially the CNS ... MC: CNS CSF: • ... change in the lungs ... ) #Mycoses #InfectiousDiseases ... Fungal #Diagnosis #Management
Endocarditis - Overview and Differential Diagnosis Framework

Who?
Infectious:
• Pre-existing valvular disease
• Prosthetic valve
• Congenital heart disease
• IV
, verrucous) - Lung ... Cerebral > Splenic, Pulmonary ... Cholesterol emboli syndrome ... Differential #Diagnosis #cardiology ... #infectiousdiseases