Misplaced Pages

This article has multiple issues. Please help improve it or discuss these issues on the talk page. (Learn how and when to remove these messages) This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. Find sources: "Coin test" – news · newspapers · books · scholar · JSTOR (October 2024) (Learn how and when to remove this message) This article includes a list of references, related reading, or external links, but its sources remain unclear because it lacks inline citations. Please help improve this article by introducing more precise citations. (October 2024) (Learn how and when to remove this message) (Learn how and when to remove this message)

A coin test (or a bell metal resonance) is a medical diagnostic test used to test for a punctured lung. A punctured lung can cause air or fluid to leak into the pleural cavity, leading to, for example, pneumothorax or hydrothorax.

In a coin test, a coin held against the chest is tapped by another coin on the side where the puncture is suspected. A stethoscope is placed on the back to listen to breath sounds and the sound of the coins. If a tinkling sound is heard, it is likely that air or fluid has found its way into the pleural cavity.

References

• K. George, Matthew, Preparation Manual for Undergraduates of Medicine
• Bellmetal resonance in Stedman's Medical Dictionary at Drugs.com

This medical diagnostic article is a stub. You can help Misplaced Pages by expanding it.

• v
• t
• e

• Physical examination
• Lung
• Coins
• Medical diagnostic stubs