The crackling sound produced by air bubbles under the skin is called?

The crackling sound produced by air bubbles under the skin is called?

• A. Subcutaneous emphysema
• B. Crepitus
• C. Edema
• D. Contusion

Answer: (A)

Crackling under the skin from air bubbles is crepitus. This happens when air enters the subcutaneous tissues, creating a distinctive crackling or popping sensation or sound as the tissue moves. Subcutaneous emphysema describes that presence of air under the skin, and crepitus is the sign you feel or hear because of it. Edema is swelling from fluid buildup, and contusion is a bruise from tissue injury—neither produces that crackling sound.

Crackling under the skin from air bubbles is crepitus. This happens when air enters the subcutaneous tissues, creating a distinctive crackling or popping sensation or sound as the tissue moves. Subcutaneous emphysema describes that presence of air under the skin, and crepitus is the sign you feel or hear because of it. Edema is swelling from fluid buildup, and contusion is a bruise from tissue injury—neither produces that crackling sound.