Side-by-side comparison helps you choose the right calculator for a specific clinical question.
Emergency
Apply the NEXUS criteria to determine if cervical spine imaging is needed after trauma.
Formula
All 5 criteria absent → c-spine can be cleared. Any criterion present → imaging recommended.
Inputs
Emergency
Apply the Canadian CT Head Rule to determine if CT is needed for minor head injury.
Formula
Decision rule with 4 high-risk and 2 medium-risk criteria. Any positive criterion = CT recommended.
Inputs