Which Statement Concerning a Hematoma Is True

Multiple Choice

Which statement concerning a hematoma is true?

A) A hematoma is a localized collection of blood under the skin.
B) A hematoma is reddish in color because of all the blood pooling.
C) A hematoma is caused by not inserting the needle deep enough to go through the vein.
D) If a hematoma develops, stop blood collection only if the bag is full.