👤 By the CinnaRN Clinical Content Team🕐 Updated 2026-08-23🏷️ Pharmacological Therapies🔖 Free to read, print, and share
Also known as: PCA pump · self-dose pain pump · morphine button · PCA
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Use this quick-reference guide to spot, treat, and prevent Patient-Controlled Analgesia on the NCLEX. Keep it handy during review and on exam day!
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📒 The 1-minute cheat sheet
📌 Rules
Pt-only presses → no proxy
Lockout prevents overdose
Basal rate optional continuous
🧪 Monitor
RR, sedation, SpO2 q1-2h
Pain score + button attempts
🚩 Report
RR < 8-10 → STOP pump
Excess sedation, hard to rouse
📌 Rescue
Naloxone at bedside ready
Two-RN check opioid setup
📚 Patient-Controlled Analgesia — full study notes
The cheat sheet above is your quick recall card. These notes go deeper — what it is, what to do first, what must be reported, and what to teach.
Patient-controlled analgesia (PCA) lets the patient self-administer small preset IV opioid doses by pressing a button, giving steadier pain control and a sense of control. A lockout interval prevents overdose by limiting how often a dose can be delivered. Only the patient should press the button, which is the built-in safety feature.
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Key points
Understand these first
The pump is programmed with a demand dose, a lockout interval, and often a maximum hourly limit.
A basal (continuous) rate increases the risk of respiratory depression and is used cautiously.
Common PCA opioids are morphine, hydromorphone, and fentanyl.
Two-nurse independent verification of drug, concentration, and pump settings is required at setup and shift change.
PCA-by-proxy, where family or staff press the button, removes the key safety mechanism and is prohibited.
Naloxone and a resuscitation setup must be readily available whenever a PCA opioid is infusing.
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Nursing priorities
What to do, in order
Verify pump settings with a second nurse against the order, and document delivered versus attempted doses.
Monitor respiratory rate, sedation level, and oxygen saturation per protocol, especially in the first 24 hours.
Use a sedation scale; rising sedation precedes respiratory depression.
Teach the patient that only they may press the button and that the lockout protects them.
Keep naloxone and an oxygen source at the bedside.
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Red flags — report now
Escalate immediately
Stop the pump and report a respiratory rate under 12, rising sedation, or oxygen saturation under 92 percent.
Never let family members press the PCA button for the patient.
Excessive attempts relative to delivered doses signal inadequate analgesia and need a provider review.
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Patient teaching
What patients must know
Press the button when you start to feel pain; the pump will not let you give too much.
Only you should press the button, never a family member or visitor.
Tell the nurse if your pain is not controlled or if you feel very drowsy or nauseated.
❓ Patient-Controlled Analgesia: NCLEX FAQs
What are the priority nursing interventions for Patient-Controlled Analgesia?
Verify pump settings with a second nurse against the order, and document delivered versus attempted doses. Monitor respiratory rate, sedation level, and oxygen saturation per protocol, especially in the first 24 hours. Use a sedation scale; rising sedation precedes respiratory depression. Teach the patient that only they may press the button and that the lockout protects them.
What are the warning signs of Patient-Controlled Analgesia a nurse must report?
Stop the pump and report a respiratory rate under 12, rising sedation, or oxygen saturation under 92 percent. Never let family members press the PCA button for the patient. Excessive attempts relative to delivered doses signal inadequate analgesia and need a provider review.
What do I need to know about Patient-Controlled Analgesia for the NCLEX?
The pump is programmed with a demand dose, a lockout interval, and often a maximum hourly limit. A basal (continuous) rate increases the risk of respiratory depression and is used cautiously. Common PCA opioids are morphine, hydromorphone, and fentanyl. Two-nurse independent verification of drug, concentration, and pump settings is required at setup and shift change.
What patient teaching is important for Patient-Controlled Analgesia?
Press the button when you start to feel pain; the pump will not let you give too much. Only you should press the button, never a family member or visitor. Tell the nurse if your pain is not controlled or if you feel very drowsy or nauseated.
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Quick Tip
The pump is programmed with a demand dose, a lockout interval, and often a maximum hourly limit.