Which of the following is an example of secondary prevention?

Comprehensive and Detailed Explanation (Based on NREMT standards):

NREMT defines secondary prevention as actions taken to reduce the impact of a disease or injury after it has occurred, focusing on early intervention and harm reduction.

Option D is correct because educating the public on naloxone use does not prevent opioid addiction but reduces morbidity and mortality by reversing overdoses when they occur.

Option A and C are examples of primary prevention, which aim to prevent disease before it happens.

Option B is an operational task, not prevention.

NREMT emphasizes prevention roles as part of community paramedicine and public health integration.