3.3 AEMT Resuscitation Pharmacology & Special Cases
Key Takeaways
- AEMT-scope resuscitation-related medications commonly include IV/IO crystalloid fluids, dextrose for documented hypoglycemia, naloxone for suspected opioid overdose, and epinephrine for anaphylaxis
- Naloxone reverses opioid-induced respiratory depression, but airway support and ventilation come first because the goal is adequate breathing, not full arousal
- Epinephrine for anaphylaxis is given intramuscularly into the lateral thigh and addresses airway swelling, bronchospasm, and shock-level hypotension
- Pediatric arrest is most often respiratory in origin, so airway and oxygenation are the highest priority, and equipment and depth are sized to the child
- Special resuscitation cases such as opioid overdose, anaphylaxis, hypoglycemia, drowning, and hypothermia require treating the reversible cause alongside high-quality CPR within protocol
The AEMT scope adds vascular access and a focused set of medications beyond the EMT level. The exam does not expect you to run an advanced cardiac life support medication algorithm like a paramedic; it expects you to know which AEMT-scope interventions address reversible causes and how they fit into resuscitation. Always follow your state scope of practice, local protocol, and medical direction for exact medications, indications, and doses.
AEMT-Scope Medications Relevant to Resuscitation
The following medications are commonly within AEMT scope and are directly relevant to resuscitation and peri-arrest care. Specific drugs, indications, and doses vary by state and agency, so this section focuses on purpose and decision-making rather than memorized numbers.
| Intervention | Primary Resuscitation-Related Use |
|---|---|
| IV/IO crystalloid fluids | Volume support in hypovolemia and distributive shock; route for medications |
| Dextrose (oral or IV per scope) | Documented or strongly suspected hypoglycemia altering mental status |
| Naloxone | Suspected opioid overdose with respiratory depression |
| Epinephrine (IM) | Anaphylaxis with airway, breathing, or circulatory compromise |
| Oxygen | Hypoxia; titrated to maintain adequate saturation |
IV and IO Access and Fluids
AEMTs establish intravenous (IV) access, and intraosseous (IO) access where trained and authorized, to deliver isotonic crystalloid fluids and medications. In shock states, fluid resuscitation supports perfusion — but the type and volume depend on the cause. As covered in 3.1, cardiogenic shock requires cautious, monitored fluids, while distributive or hypovolemic shock more often needs volume per protocol. Reassess lung sounds and vital signs after fluid administration.
Dextrose for Hypoglycemia
Hypoglycemia can mimic stroke, seizure, intoxication, or arrest precursors. For a patient with altered mental status and documented or strongly suspected low blood glucose, restoring glucose can rapidly reverse the emergency. Confirm blood glucose where equipment allows, protect the airway, and administer dextrose by the route allowed in your scope, then reassess mental status.
Naloxone for Suspected Opioid Overdose
Naloxone is an opioid antagonist that reverses opioid-induced respiratory depression. The exam's key point: in opioid overdose, the patient dies from not breathing, so airway management and ventilation come first. Naloxone is given to restore adequate breathing, not necessarily to fully wake the patient. Be prepared for vomiting, agitation, or re-sedation as naloxone wears off, and continue to monitor and support ventilation.
Epinephrine for Anaphylaxis
Anaphylaxis is a rapidly progressing, life-threatening allergic reaction with airway swelling, bronchospasm, and distributive shock. Epinephrine is the first-line treatment and is given intramuscularly (IM) into the lateral thigh (often via an auto-injector or per protocol). It reverses airway swelling and bronchospasm and supports blood pressure. Support the airway and oxygenation, give epinephrine early per protocol, establish IV access, support circulation with fluids as indicated, and transport rapidly while monitoring for recurrence.
Pediatric Arrest Differences
The exam consistently tests one core idea: pediatric arrest is usually respiratory, not primarily cardiac, in origin. Children most often deteriorate from a respiratory or shock problem that progresses to bradycardia and then arrest, so prevention and aggressive airway/oxygenation management can stop the progression.
| Concept | Adult | Pediatric |
|---|---|---|
| Most common arrest cause | Primary cardiac event | Respiratory/hypoxic deterioration |
| Top priority | Early CPR + defibrillation | Airway, oxygenation, and ventilation |
| Compression depth | About 2 inches / 5 cm | About one-third the chest depth, sized to child |
| Equipment | Standard adult | Length/weight-based sizing (airway, BVM, AED pads) |
| Bradycardia with poor perfusion | Less central early | A critical pre-arrest warning sign |
For infants and small children, a slow heart rate with poor perfusion is an emergency that warrants oxygenation and ventilation per current pediatric guidelines and protocol. Use pediatric-appropriate AED pads/settings where available, and follow length-based or weight-based tools for sizing and dosing.
Special Resuscitation Situations
Many arrests have a treatable cause. The exam rewards recognizing the cause and treating it alongside high-quality CPR, all within protocol.
- Opioid overdose arrest/peri-arrest — prioritize ventilation and oxygenation; naloxone for suspected opioid cause; continue resuscitation as indicated.
- Anaphylaxis — IM epinephrine, airway support, fluids for hypotension; anticipate rapid deterioration.
- Severe hypoglycemia — restore glucose for altered or arresting patients with confirmed/suspected low glucose.
- Drowning — hypoxia is the central problem; emphasize early effective ventilation and oxygenation along with CPR.
- Hypothermia — handle gently, prevent further heat loss, provide CPR per protocol; resuscitation efforts are often prolonged because severe hypothermia can be protective ("not dead until warm and dead," per medical direction and protocol).
- Pregnancy — provide standard high-quality resuscitation and rapid transport; positioning and team awareness of the pregnant patient matter, per protocol.
In every special case, the structure is the same: high-quality CPR and oxygenation, identify and treat the reversible cause within AEMT scope, communicate clearly with the team and medical direction, and transport rapidly.
An unresponsive patient with pinpoint pupils and a respiratory rate of 4 breaths per minute is suspected of opioid overdose. What is the AEMT's first priority?
Compared with adult cardiac arrest, pediatric arrest most commonly originates from which problem, and what does that imply for the AEMT?
An AEMT treats a patient in anaphylaxis with stridor, wheezing, and hypotension. Which intervention is the first-line treatment?