Lois’s son, Stewie, fell on the ground and scraped his knee. The pediatrician told Lois not to worry it was a/an:
  1. Hematoma
  2. Contusion
  3. Skin tear
  4. Abrasion
Explanation
Answer - D - Abrasions occur when only the upper layer of skin is damaged, with little or no bleeding. It can be painful, but there is less risk of damage because it is a superficial wound.
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