A patient reports to his doctor that he has been passing blood in his stool, and he is concerned. What might this be a sign of?
The same girl is sent home to rest. Soon, she realizes that she is having trouble breathing and that the left side of her chest is swollen and bruised. When she touches her side, it hurts, and the pain intensifies when she tries to move. The skin is not broken, however. What could these be signs of?
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