Pulmonology Book

http://www.fpnotebook.com/

Coin Test

Aka: Coin Test, Bell tympany
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  1. Indication
    1. Diagnosis of Pneumothorax
  2. Technique
    1. Assistant holds one coin flat against chest
      1. Strikes coin with a second coin
    2. Examiner auscultates back on same side as assistant
  3. Interpretation
    1. In Pneumothorax, a clear ringing "bell" sound transmits

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