7 results
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
Hypoventilation: CNS of Respiratory ... Hypoventilation Syndrome ... Left Shunt - Anatomic ... UnremarkableLab #AA ... #differential #diagnosis
Abnormalities in Rate and Rhythm of Breathing 
Normal 
The respiratory rate is about 14—20 per min
The respiratory ... disease, pleuritic chest ... hyperventilation syndrome—a ... Breathing #Patterns #Pulmonary ... #Diagnosis #PhysicalExam
Bronchiectasis - Summary

What?
• Bronchiectasis is derived from the Greek words bronckos meaning airway and ectasis meaning
• Mounier-Kuhn syndrome ... dyskinesia • Young syndrome ... parenchyma Diagnosis ... - BAR >1.0 is abnormal ... #differential #diagnosis
Sarcoidosis - Diagnosis and Management Summary
Epidemiology
1) High incidence in Scandinavian countries (11-24 cases per 100,000 individuals
renal failure Clinical ... symptoms are not caused ... Pulmonary: dyspnea ... , cough, chest pain ... ), liver (pain/abnormal
Amiodarone Induced Lung Toxicity Summary

Who?
• 5% of patients
• Dose ≥ 400 mg per day

How?  Possible
toxicity (e.g., acute respiratory ... distress syndrome ... pneumonitis Diagnosis ... Exclude other causes ... Eosinophilia • Normal
Nontuberculous Mycobacteria (NTM) Infections 

Mycobacterial species other than those belonging to the Mycobacterium tuberculosis complex and
status NTM Cause ... Lady Windermere Syndrome ... : • Syndrome of ... right middle lobe ... Disease: Clinical
Authors: Mark M. Ramzy, DO, EMT-P (@MarkRamzyDO, EM Resident Physician, Drexel University, Department of Emergency Medicine)
This patient’s clinical ... exam findings and clinical ... does a better job ... Most commonly caused ... #Radiology #CTChest