Which of the following terms correctly defines the character of pericardial friction rub?
  1. Rough rumbling sound
  2. Soft cooing sound
  3. Scratchy sound like velcro
  4. Harsh and husky
Explanation
Answer- C - The character of pericardial friction rub is a scratchy sound like velcro. Rough rumbling sound is produced by stenotic murmurs such as murmur of mitral stenosis. Soft cooing sound may be heard in some cases of aortic regurgitation.
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