spectrum comparison
Opioid Toxicity Spectrum: Therapeutic → Excessive Sedation → Respiratory Depression → Overdose
Giving naloxone to a patient who is simply drowsy post-op wastes the drug and reverses pain control. Failing to give it when respirations drop to 6 kills the patient. The NCLEX tests whether you can pinpoint where on the opioid toxicity spectrum the client sits — and match the right intervention to that exact stage.
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Practice 41 NCLEX-style questions
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Progression4 stages
Progression — 4 stages
Therapeutic
What's happening- Pain controlled
- mild drowsiness acceptable
Key findings- RR ≥ 12, easily arousable
Nursing focus- Monitor RR & sedation before each dose
Excessive Sedation
What's happening- Sedation precedes respiratory depression
Key findings- Drowsy, drifts off mid-conversation
Nursing focus- Hold opioid
- Stimulate, reassess often
Respiratory Depression
What's happening- ↓ ventilatory drive then hypoxia
Key findings- RR < 10, shallow
- ↓ SpO₂
Nursing focus- Hold opioid
- Stimulate, reassess often
- Give O₂, ready naloxone
Escalate when- RR < 10 or unarousable: give naloxone
Overdose
What's happening- Profound CNS + respiratory depression
Key findings- ★Pinpoint pupils, RR < 8, unresponsive
Nursing focus- Hold opioid
- ★Naloxone IV/IM
- Support airway + ventilation
Escalate when- Repeat naloxone q2–3 min
- Naloxone wears off before opioid
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Clinical Pearl
Sedation always precedes respiratory depression — escalating drowsiness is your earliest cue to intervene before you need naloxone.
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