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key terms
chapter 9
| hematoma | reddened swollen area in which blood collects under the skin |
| hemoconcentration | increase in the ratio of formed elements to plasma normally caused by leaving the tourniquet on too long |
| hemolysis | destruction of red blood cells |
| palpation | probing or feeling |
| petechiae | a small red or purple spot caused by bleeding into the skin |
| requisition | form which specifies which tests must be run or which samples to collect |