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Immediate stabilization
Airway and breathing priorities
Apnea
Immediate bag valve mask ventilation
Airway adjunct selection by mental status
Hypoventilation
Assisted ventilation with capnography when available
Naloxone trial when opioid toxidrome suspected
Oxygenation targets
SpO2 94% to 98%
Avoid hyperoxia after adequate ventilation
Circulation threats
Hypotension differential beyond opioids
Shock triggers for vasopressor readiness
Opioid toxidrome recognition
Depressed respiratory drive
Respiratory rate trend
Tidal volume adequacy
Depressed mental status
Arousal response to voice
Arousal response to pain
Miosis
Pupillary reactivity preserved
Alternate pupil patterns with co intoxication
Escalation triggers
Persistent hypoxia despite ventilation
Immediate advanced airway planning
Aspiration management pathway
Recurrent respiratory depression after reversal
Naloxone infusion pathway
Higher level of care planning
Monitoring and access
Monitoring bundle
Continuous pulse oximetry
Room air reassessment after stabilization
Artifact recognition with poor perfusion
Continuous capnography when available
ETCO2 trend for ventilatory failure
Sudden ETCO2 drop for apnea
Cardiac monitoring
Dysrhythmia screening with co ingestion
QT interval awareness with methadone risk
Noninvasive blood pressure cycling
Frequency based on instability
Hypotension persistence triggers broader workup
Access and readiness
IV access
Low dose naloxone titration capability
Blood draw for co ingestion screening
IO access
If no IV with immediate life threat
Not required solely for naloxone
Airway equipment at bedside
Suction functioning
BVM with PEEP option when needed
Key concepts
Primary lethal mechanism
Respiratory depression
Hypercapnia progression
Hypoxia progression
Airway compromise
Loss of protective reflexes
Aspiration risk
Naloxone goals
Adequate ventilation
Not necessarily full wakefulness
Avoid precipitated withdrawal when possible
Re sedation risk
Short naloxone duration relative to long acting opioids
Observation plan tied to opioid type and dosing pattern
SymptomDx is an educational tool for medical professionals. It does not replace clinical judgment. Verify all clinical data and drug dosages with authoritative sources.