You should suspect a kidney injury if a patient presents with:

In cases of kidney injury, a bruising or hematoma in the flank region is a significant indicator, as it typically suggests trauma in that area. The kidneys are located towards the back of the abdominal cavity, and an injury can lead to bleeding that may manifest as a visible bruise, or hematoma, on the skin overlying the kidney. This physical sign is critical for EMTs and other medical professionals, as it directs attention to a potential serious issue that requires immediate evaluation and management.

Recognizing flank hematoma provides essential insight into the nature of the injury, potentially triggering further assessment for internal bleeding or other complications associated with renal trauma. This is particularly important in emergency situations, where quick identification of such signs can significantly impact patient outcomes.