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Droplet larger than aerosols, when exhaled (at velocity of <1m/s), evaporate or fall to the ground
#coronavirus #distance
Shoulder Radiograph AP View Anatomy and Interpretation Checklist
Normal Measurements:
 • Acromioclavicular Joint 5-8mm
 • Coracoclavicular Distance
Coracoclavicular Distance ... Acromiohumeral Distance
Shoulder Radiograph AP View Anatomy and Checklist
Normal Measurements:
 • Acromioclavicular Joint 5-8mm
 • Coracoclavicular Distance 11-13mm
Coracoclavicular Distance ... Acromiohumeral Distance
There are about a dozen x-ray findings, but two of them are especially important: Loss of
Then measure the distance ... A distance >0.5cm ... calcium sign and a distance
Apical Approach Pericardiocentesis on POCUS Echocardiogram

Apical approach had best pocket + good distance away from lung
pocket + good distance
Echocardiographic criteria of LV Non-compaction
Chin Criteria (1990):
 • Absence of any other coexisting cardiac structural abnormality
end-diastole • Ratio of distance ... trabecular recesses and distance
Gastrointestinal Causes of Iron Deficiency Anemia
 • Mass lesions: Carcinoma, Large polyps
 • Inflammatory: Reflux esophagitis,
enterocolitis, Long-distance
Pleural effusion is not always visible as a meniscus in the costophrenic angle. 
A subpulmonic effusion
is an increased distance ... the increased distance
Endometrial Cancer Staging
 - Primary Tumor (T)
 - Regional Lymph Nodes (N)
 - Distant Metastasis (M)

DOI:
Lymph Nodes (N) - Distant
Eosinophilic Esophagitis (EoE) - Endoscopic ReFerence Score (EREFS)
Edema (Loss of vascular markings):
 - Grade 0: Distinct
: - Grade 0: Distinct ... Grade 2: Moderate (distinct