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Medical · Adult / adolescent · ALS

Suspected sepsis

Recognize suspected sepsis, support perfusion, and know when to contact base.

OCEMS source summary · Updated 2026-09-16

Escalation & the April 2026 update

  • SO-M-055 still describes contacting base for persistent systolic BP below 90 after 1 L, or CHF developing before 1 L with BP still below 90. The newer PR-230, implemented April 2026, explicitly removes the adult push-dose epinephrine base-contact/order requirement. Other required contact and destination rules still apply.
  • Fluid overload is a concern with CHF or renal disease. Absence of fever does not exclude infection, especially in older or immunosuppressed patients.

1. Check the criteria

  • Suspected or known infection, plus at least TWO findings:
  • GCS below 13; systolic BP below 100 mmHg; respiratory rate above 22/min; or reported/measured temperature above 100.4°F (38°C) or below 97°F (36°C).

2. Start care

  1. Monitor cardiac rhythm and oxygen saturation. If SpO₂ is below 95%, give high-flow oxygen by mask or nasal cannula at 6 L/min, as tolerated.
  2. Establish IV access. If systolic BP is below 100 and lungs are clear without CHF, give 250 mL normal saline.
  3. Repeat only while lungs remain clear, up to 1 L, to improve perfusion.
  4. Provide ALS transport to the nearest emergency receiving center. Notify the receiving team early of suspected sepsis.

3. Escalation after fluids

  • For eligible shock under PR-230, use epinephrine diluted to 10 mcg/mL: 1 mL (10 mcg) IV/IO every 3 minutes, titrated to systolic BP above 90. Use the linked medication guide for preparation and the complete PR-230 exclusions.
  • Do not treat hemorrhage/dehydration with push-dose epinephrine before volume replacement. PR-230 also excludes a perfusing non-shock state and suspected stimulant intoxication.

4. Reassessment & handoff

  • Reassess pressure, perfusion, respiratory status, and lung sounds after each intervention. Stop repeating the clear-lung fluid pathway if congestion develops.
  • Communicate the suspected infection, qualifying findings, BP trend, fluid amount, treatment response, and early sepsis concern to the receiving team.