What is the primary purpose of a CBC performed on a patient suspected of internal organ trauma?

The primary purpose of a Complete Blood Count (CBC) in a patient suspected of internal organ trauma is to assess for internal hemorrhaging. When there is trauma to internal organs, one of the most critical concerns is the possibility of bleeding that can lead to shock or other serious complications. A CBC provides valuable information regarding the patient's hematocrit and hemoglobin levels, which can indicate whether there is significant blood loss. Anabnormally low hemoglobin level can suggest that the patient has lost a notable volume of blood, prompting further investigation and management for potential hemorrhagic complications. This assessment is essential in an emergency setting to determine the urgency of interventions required.

Other aspects of a CBC, such as white blood cell counts, may provide insight into infection, but the immediate priority in cases of suspected trauma is often to identify and manage any internal bleeding.