Prehospital Airway 2026: Ketamine In, Etomidate Out, and the Post-Intubation Sedation Discipline Every Medic Needs to Memorize

If you intubated a patient two years ago and again this morning, the sequence you were trained on has quietly changed underneath you. Not because someone decided to make things harder. Because the data caught up with what senior medics have been muttering about since 2022: the tube is not the goal, and the drug you push before the tube determines whether that patient stays alive for the next 30 minutes.

The 2026 Southeastern Pennsylvania EMS (SPEMS) protocol change list is worth reading in full because it codifies a shift that most progressive systems have already started making — often without a formal document behind it. Three specific changes matter, in order of how likely they are to change your patient's outcome tomorrow.

1. Etomidate Is Out. Ketamine Is the New RSI Induction Agent.

SPEMS's 2026 protocol removes etomidate from the paramedic drug index and replaces it with ketamine for RSI induction — 2 mg/kg slow IV/IO, max 500 mg. This is not a soft recommendation. Etomidate is gone from the induction pathway.

The reason is not that etomidate is a bad drug. It's that the risk profile it carries — even a single-dose transient adrenal suppression — is now consistently reproduced in prehospital and ED intubation research, and the mortality signal, while not statistically decisive on its own, adds up across large cohorts. A June 2026 meta-analysis of ketamine versus etomidate for emergency intubation (PubMed 42299661) landed on what most airway operators expected:

• No significant difference in 28-day mortality between the two agents.
• Ketamine group had more post-intubation hypotension.
• Etomidate group had more adrenal suppression, particularly in septic patients.

You could read that as a wash. Progressive systems do not. Here's why: post-intubation hypotension is a problem you can manage — with fluids, with push-dose pressors, with tighter sedation dosing. Adrenal suppression in a septic patient is a problem you cannot see, cannot easily measure in the field, and cannot fix with a single intervention. The systems switching to ketamine are choosing the visible risk they can react to over the invisible one they cannot.

The practical change: if your service still has etomidate on the truck, expect a memo within the next 12 months. Start reading your kit now.

2. Apneic Oxygenation Is Not Optional Anymore

Every intubation attempt, high-flow O2 via nasal cannula at 8–10 LPM stays on the patient through the attempt. Not as backup, not as an "if you have time" step — the SPEMS 2026 update makes it a standing directive during all attempts.

The physiology is well-established: apneic oxygenation extends safe apnea time by delivering oxygen through the anatomically continuous airway during the intubation attempt. In practice, that translates into fewer desaturations, fewer aborted attempts, and fewer patients who go from "tough tube" to "coding tube" in the space of 90 seconds.

If your service isn't doing this yet, the equipment cost is nothing — a spare nasal cannula on top of the pre-oxygenation mask. The behavioral cost is the harder part: it means the medic running the airway has to be disciplined enough to leave the cannula in place and turned on while the mask comes off. That's a training issue, not an equipment issue.

3. Post-Intubation Sedation Now Has Its Own Protocol Block

This is the change most likely to save your license.

For years, prehospital post-intubation care has looked like a dark spot on the protocol — get the tube, confirm placement, and then… hope the patient doesn't wake up violent before the ED. The SPEMS 2026 protocol carves out a dedicated "Sedation for Post Advanced Airway" section with clean, blood-pressure-gated dosing:

• If SBP > 90 mmHg → midazolam (Versed) 0.1 mg/kg IV/IO, max 10 mg. Repeat up to twice at 0.05 mg/kg IV/IO, max 5 mg per dose.
• If SBP < 90 mmHg → ketamine 2 mg/kg slow IV/IO, max 500 mg. Because ketamine is a bronchodilator and generally hemodynamically neutral or supportive in most patients, it is the sedation-with-perfusion-support tool for the hypotensive intubated patient.
• If more sedation is needed → contact medical control. No cowboy sedation stacking.

Why this matters: an under-sedated intubated patient in the back of the truck is a ventilator-fighting, ETCO2-spiking, unplanned extubation risk. Under-sedation is not "letting them ride light." It is a clinical error with predictable consequences — barotrauma from vent asynchrony, dislodged tubes, aspirated stomach contents when they gag, and, in the worst case, a self-extubation followed by a chaotic recannulation attempt on a moving truck.

The blood-pressure gate is the discipline. It forces the medic to check pressure before pushing sedation and to pick the agent based on hemodynamics — not habit.

What to Change in Your Kit This Week

If you carry a personal medic bag or run truck restocks:

• Confirm ketamine is stocked in sufficient volume for both induction and post-intubation sedation. A single vial is not enough. You need enough for a 2 mg/kg induction dose and a subsequent 2 mg/kg maintenance dose if the patient becomes hypotensive.
• Standardize the nasal cannula on the airway roll. Keep it on top of the pre-ox mask so the operator doesn't have to think about it.
• Print the blood-pressure-gated sedation card and laminate it to the airway kit. In the moment, no one wants to be scrolling a protocol app one-handed.
• Confirm end-tidal CO2 discipline: capnography stays connected from immediately post-intubation through hospital handoff. Sedation depth changes ETCO2 fast; ETCO2 changes are your earliest warning of tube trouble.

Real airway management is not just the intubation. It is the 30 minutes after — and the SPEMS 2026 update is the first EMS protocol document to fully treat it that way. Expect other regional systems to follow.

Related MED-TAC Content

• ILCOR 2026 First Aid Updates: The No-BS Field Checklist
• Head Injury on the Street 2026: When TXA Matters, When It Doesn't
• Prehospital Agitation: Ketamine + EtCO2 Playbook

For paramedic and EMS/Fire kit builds that support 2026 airway management, browse our EMS & Fire Medical Equipment collection.

Sources

• SPEMS 2026 Paramedic Protocol Change List
• Ketamine vs Etomidate for Emergency Intubation — Meta-analysis, June 2026 (PubMed 42299661)

Si intubó a un paciente hace dos años y otra vez esta mañana, la secuencia que le entrenaron ha cambiado en silencio. No porque alguien haya decidido hacer las cosas más difíciles. Porque los datos alcanzaron lo que los paramédicos experimentados vienen murmurando desde 2022: el tubo no es la meta, y la droga que empujas antes del tubo determina si ese paciente sigue vivo los próximos 30 minutos.

La lista de cambios de protocolo 2026 de SPEMS vale la pena leer completa porque codifica un cambio que la mayoría de los sistemas progresistas ya han empezado a hacer. Tres cambios específicos importan, en orden de probabilidad de cambiar el resultado de tu paciente mañana.

1. Etomidato Sale. Ketamina Es el Nuevo Agente de Inducción para RSI

El protocolo 2026 de SPEMS elimina etomidato del índice paramédico y lo reemplaza con ketamina para inducción de RSI — 2 mg/kg IV/IO lento, máximo 500 mg. No es una recomendación blanda. Etomidato desapareció del sendero de inducción.

Un metaanálisis de junio 2026 de ketamina versus etomidato para intubación de emergencia (PubMed 42299661) confirmó lo que la mayoría de operadores de vía aérea esperaban: no hay diferencia significativa en la mortalidad a 28 días, más hipotensión post-intubación con ketamina, más supresión adrenal con etomidato — particularmente en pacientes sépticos.

Los sistemas que están cambiando a ketamina eligen el riesgo visible que pueden manejar (hipotensión — fluidos, pressores) sobre el riesgo invisible que no pueden (supresión adrenal en séptico).

2. Oxigenación Apneica Ya No Es Opcional

En cada intento de intubación, O2 de alto flujo por cánula nasal a 8–10 LPM permanece encendido a través del intento. No como respaldo, no como paso "si tienes tiempo" — la actualización 2026 de SPEMS lo hace una directriz permanente durante todos los intentos.

La fisiología está bien establecida: la oxigenación apneica extiende el tiempo seguro de apnea entregando oxígeno a través de la vía aérea anatómicamente continua durante el intento de intubación. Menos desaturaciones, menos intentos abortados, menos pacientes que pasan de "tubo difícil" a "tubo en paro" en 90 segundos.

3. La Sedación Post-Intubación Ahora Tiene Su Propio Bloque de Protocolo

Este es el cambio con más probabilidad de salvar tu licencia.

El protocolo 2026 de SPEMS talla una sección dedicada de "Sedación para Vía Aérea Avanzada Post" con dosificación limpia y regulada por presión arterial:

• Si PAS > 90 mmHg → midazolam (Versed) 0.1 mg/kg IV/IO, máximo 10 mg. Repetir hasta dos veces a 0.05 mg/kg IV/IO, máximo 5 mg por dosis.
• Si PAS < 90 mmHg → ketamina 2 mg/kg IV/IO lento, máximo 500 mg. Como ketamina es broncodilatador y generalmente hemodinámicamente neutral o de apoyo, es la herramienta de sedación-con-apoyo-de-perfusión para el paciente intubado hipotenso.
• Si se necesita más sedación → contactar control médico. Nada de acumulación de sedantes tipo vaquero.

Un paciente intubado sub-sedado en la parte trasera del camión es un riesgo de lucha con el ventilador, ETCO2 subiendo, extubación no planeada. Sub-sedación no es "dejarlo cabalgar ligero." Es un error clínico con consecuencias predecibles.

Qué Cambiar en Tu Kit Esta Semana

• Confirma que ketamina esté stockeada en volumen suficiente para inducción Y sedación post-intubación. Un solo frasco no basta.
• Estandariza la cánula nasal en el rollo de vía aérea. Encima de la máscara de pre-oxigenación.
• Imprime y lamina la tarjeta de sedación regulada por presión arterial.
• Confirma la disciplina de ETCO2 end-tidal: capnografía conectada desde inmediatamente post-intubación hasta el traspaso al hospital.

El manejo real de la vía aérea no es solo la intubación. Son los 30 minutos después — y la actualización 2026 de SPEMS es el primer documento de protocolo EMS que lo trata así completamente.

Para kits de paramédico y EMS/Fire que apoyen el manejo de vía aérea 2026, explora nuestra colección EMS & Fire Medical Equipment.