Muscle guarding,or tensing of the rectus muscles,during expiration indicates

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To determine whether muscle guarding is involuntary,perform light palpation of the rectus muscles during expiration and not muscle tensing.Normally,muscle guarding or tensing of the abdominal musculature is absent during expiration.The patient cannot exercise voluntary muscle tensing during expiration.Involuntary muscle guarding of the rectus muscles suggests irritation of the peritoneum or peritonitis.

Muscle Guarding,or Tensing of the Rectus Muscles,during Expiration Indicates