Which speed is associated with a motorcycle crash that is a positive indication for spinal motion restriction?

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Multiple Choice

Which speed is associated with a motorcycle crash that is a positive indication for spinal motion restriction?

Explanation:
Mechanism of injury matters: energy transfer during impact increases with speed, so a motorcycle crash at a certain speed threshold raises concern for spinal injury even if there are no obvious symptoms. Reaching about 20 mph signals enough energy to warrant spinal motion restriction as a precaution. Higher speeds involve even greater risk, but the threshold used to indicate SMR in this context is 20 mph, which is why that option is considered the best fit.

Mechanism of injury matters: energy transfer during impact increases with speed, so a motorcycle crash at a certain speed threshold raises concern for spinal injury even if there are no obvious symptoms. Reaching about 20 mph signals enough energy to warrant spinal motion restriction as a precaution. Higher speeds involve even greater risk, but the threshold used to indicate SMR in this context is 20 mph, which is why that option is considered the best fit.

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