coin test
bell·met·al res·o·nance
in cases of a large pulmonary cavity or of pneumothorax, a clear metallic sound obtained by striking a coin, held against the chest, by another coin, or by flicking the chest wall with one's fingernail; the sound is heard on auscultating the chest wall on the same side anteroposteriorly.
Farlex Partner Medical Dictionary © Farlex 2012
References in periodicals archive
John Moore, who was also involved in the
coin tests, added: "We're not saying we should stop using money.
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