What anatomical position is most likely to show the presence of a small pleural effusion in the upright chest radiograph?
a. Apical regions
b. Costophrenic angles
c. Fissures
d. Subdiaphragmatic region
ANS: B
It is important that, if possible, the chest radiograph be obtained with the patient in an upright position to show a pleural fluid meniscus at the costophrenic angles.
Health Professions
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