The routine use of extensive trauma panels are no longer recommended, but there are some laboratory tests that may be helpful in assessing the trauma patient.1,55 The benefit of laboratory testing has been controversial. Wegner noted that there are 2 reasons for performing laboratory testing. The first is to immediately treat a potentially unstable patient by ordering a type and cross match and administering blood. The second is to screen a stable child for a possible intra-abdominal injury.1 The most useful tests are the complete blood count (CBC), liver function tests (LFTs), and urinalysis (UA). However, the physical examination and mechanism of injury should guide the evaluation.
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