12 Lead St Elevation Criteria (STEMI Prehospital) — EMS Field Guide for Paramedic Students

Medication considerations

Medication considerations include weight-based dosing where relevant, allergy verification, contraindications, route selection, and documentation of time, dose, and effect.

Primary assessment follows a rapid life-threat search: airway patency, work of breathing, pulse quality, perfusion, bleeding control, and neurologic responsiveness. Secondary assessment deepens the story once immediate threats are mitigated or delegated.

Transport/escalation

Transport and escalation should name destination capability, notification triggers, reassessment intervals en route, and criteria for priority transport.

12-lead acquisition quality matters: limb lead reversal, baseline wander, and poor skin prep can mimic or mask ischemia. When the story does not match the tracing, repeat the ECG after initial care and compare serially.

Pediatric/geriatric considerations if applicable

Pediatric and geriatric considerations include atypical vitals, communication barriers, caregiver collateral, fall risk, polypharmacy, and frailty-informed packaging and movement.

Primary assessment follows a rapid life-threat search: airway patency, work of breathing, pulse quality, perfusion, bleeding control, and neurologic responsiveness. Secondary assessment deepens the story once immediate threats are mitigated or delegated.

Documentation pearls

Documentation pearls include quoting patient words for chief complaint, documenting decision capacity elements when applicable, and recording serial vitals with timestamps around interventions.

Time-critical cardiac conditions reward early recognition and clean communication: last known well, symptom onset narrative, vitals trends, and ECG findings should travel with the patient in both spoken and written handoff.

Exam-focused review points

Exam-focused review points emphasize first actions for unstable presentations, scope-safe choices, and the rationale that registry items reward patient-centered safety over trivia.

Documentation should read like a concise clinical story: chief complaint, key negatives, exam changes over time, interventions with dose and route, patient response, and handoff highlights including risks and pending items.

References (APA 7)

American Heart Association. (2020). 2020 American Heart Association guidelines for cardiopulmonary resuscitation and emergency cardiovascular care. American Heart Association. https://cpr.heart.org/en/resuscitation-science/cpr-and-ecc-guidelines

National Association of EMS Physicians & American College of Surgeons Committee on Trauma. (2022). EMS spinal precautions and the use of the long backboard: resource document to accompany a joint position statement. NAEMSP. https://naemsp.org/

Centers for Disease Control and Prevention. (2024). Stroke signs and symptoms (consumer and professional education). U.S. Department of Health and Human Services. https://www.cdc.gov/stroke/

National Highway Traffic Safety Administration. (2022). National EMS scope of practice model (documentation and education framework). https://www.ems.gov/

Follow your program citation requirements; links support educational traceability and do not replace local clinical policy.

Reassess after every intervention, communicate changes clearly, document serial vitals with timestamps, and prioritize patient-centered safety during transport and handoff.

Reassess after every intervention, communicate changes clearly, document serial vitals with timestamps, and prioritize patient-centered safety during transport and handoff.

Reassess after every intervention, communicate changes clearly, document serial vitals with timestamps, and prioritize patient-centered safety during transport and handoff.

Reassess after every intervention, communicate changes clearly, document serial vitals with timestamps, and prioritize patient-centered safety during transport and handoff.

Reassess after every intervention, communicate changes clearly, document serial vitals with timestamps, and prioritize patient-centered safety during transport and handoff.

Reassess after every intervention, communicate changes clearly, document serial vitals with timestamps, and prioritize patient-centered safety during transport and handoff.

Reassess after every intervention, communicate changes clearly, document serial vitals with timestamps, and prioritize patient-centered safety during transport and handoff.