PCA Safety And Monitoring - NCLEX Rn

1. What is the PCA "basal rate" setting?

   Continuous background opioid infusion. A basal rate provides a steady low-dose opioid delivery to maintain analgesia, supplementing patient-initiated boluses.

2. Which patient factor increases risk with a PCA basal rate: opioid-naïve status or opioid tolerance?

   Opioid-naïve status. Opioid-naïve patients lack tolerance, making them more susceptible to respiratory depression from continuous basal infusions.

3. What nursing assessment must be completed before initiating PCA opioid therapy?

   Baseline pain, sedation, and respiratory assessment. Establishing pre-treatment baselines allows for accurate detection of opioid-related changes in pain control, alertness, and respiratory function.

4. Which person must be the only one allowed to press the PCA demand button?

   The patient (no family or staff "PCA by proxy"). Only the patient should activate the device to ensure dosing aligns with their alertness level, preventing inadvertent overdose from others.

5. What is the correct storage/handling principle for PCA opioids at the bedside?

   Secure controlled substance; do not leave extra doses accessible. Proper security of opioids prevents diversion or tampering, complying with controlled substance regulations and maintaining patient safety.

6. Which vital sign change is more consistent with opioid effect than uncontrolled pain: decreased $RR$ or increased BP?

   Decreased $RR$. Opioids cause respiratory depression, whereas uncontrolled pain typically elevates blood pressure through sympathetic activation.

7. Which assessment finding indicates naloxone may be needed: $RR$ 6/min or pain score 8/10?

   $RR$ 6/min. A respiratory rate of 6/min signals severe hypoventilation requiring reversal, whereas high pain scores indicate inadequate analgesia without immediate danger.

8. Which comorbidity most increases PCA opioid risk and requires heightened monitoring: obstructive sleep apnea or GERD?

   Obstructive sleep apnea. Obstructive sleep apnea predisposes patients to airway obstruction, exacerbating opioid-induced respiratory depression and necessitating vigilant monitoring.

9. Which documentation is essential when monitoring PCA: number of demands/deliveries or only pain score?

   Demands and deliveries, plus pain, sedation, and respirations. Documenting attempts versus successful doses alongside clinical trends ensures evaluation of PCA efficacy and early detection of adverse effects.

10. Which concurrent medication class most increases risk of oversedation with PCA opioids?

    Benzodiazepines or other CNS depressants. These medications potentiate opioid effects on the central nervous system, heightening the risk of profound sedation and respiratory compromise.

11. What medication is used to reverse opioid-induced respiratory depression from PCA?

    Naloxone. As an opioid antagonist, naloxone competitively binds to mu-receptors, rapidly reversing overdose effects like respiratory depression.

12. What is the safest practice for PCA syringe/cartridge changes and programming changes?

    Independent double-check by two licensed nurses. Double-checking minimizes programming errors with high-alert opioids, enhancing patient safety during PCA administration.

13. Which device should be used to detect hypoventilation earlier than pulse oximetry in PCA patients?

    Capnography (end-tidal $CO_2$ monitoring). Capnography measures exhaled carbon dioxide levels, identifying hypoventilation sooner than pulse oximetry, which may remain normal until severe hypoxia develops.

14. What is the priority nursing action if a PCA patient is difficult to arouse?

    Stop/hold opioid, stimulate, and assess airway/respirations. Immediate cessation of opioid delivery and patient stimulation are critical to restore consciousness and evaluate for respiratory depression.

15. What does the PCA "lockout interval" prevent?

    Repeat dosing within a set time to limit overdose risk. The lockout interval enforces a minimum time between doses, safeguarding against excessive opioid accumulation and resultant toxicity.

16. Which patient statement requires immediate correction: "My spouse can press it while I sleep" or "Only I press it"?

    "My spouse can press it while I sleep." This statement promotes PCA by proxy, which circumvents safety features and risks oversedation since the patient may not be alert enough to self-dose.

17. What is the term for someone else pressing the PCA button for the patient?

    PCA by proxy. This term describes unauthorized activation by non-patients, which bypasses the safety mechanism of patient-controlled dosing and increases overdose risk.

18. What is the primary safety rationale for using PCA instead of nurse-administered PRN dosing?

    Self-titration reduces oversedation risk when used correctly. Patient self-administration allows for precise dosing based on real-time pain needs, minimizing the risk of excessive opioid accumulation from delayed nurse responses.

19. Which monitoring finding is the most concerning early sign of opioid-induced respiratory depression on PCA?

    Decreased respiratory rate. Opioids primarily depress the respiratory center, making bradypnea an early indicator of potential life-threatening hypoventilation.

20. Which clinical situation most warrants continuous monitoring with PCA: post-op with OSA or healthy adult with mild pain?

    Post-op patient with obstructive sleep apnea. Postoperative patients with OSA face compounded risks of respiratory depression from opioids and airway obstruction, demanding continuous oversight.

21. Identify the correct IV tubing setup for PCA: dedicated line or shared with intermittent antibiotics?

    Dedicated line (avoid piggybacking into PCA line). A dedicated line prevents drug incompatibilities and accidental boluses from other infusions, ensuring safe PCA delivery.

22. Which parameter is most important to trend for PCA opioid safety: pain score or sedation level?

    Sedation level. Trending sedation provides earlier detection of opioid-induced central nervous system depression compared to pain scores, which may not correlate with safety risks.

23. What is the correct patient teaching about PCA use when pain begins to increase?

    Press the button at onset of pain; do not wait until severe. Early activation maintains steady analgesia levels, preventing pain escalation that requires higher doses and increases side effect risks.

24. What does PCA stand for in pain management?

    Patient-controlled analgesia. PCA enables patients to self-administer analgesics intravenously within prescribed limits for effective pain control.

25. What is the priority safety check if a PCA pump alarms for occlusion?

    Assess IV site and tubing patency; do not override blindly. Assessing for occlusions ensures resolution of mechanical issues without risking unsafe overrides that could lead to dosing errors.

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