CAPA (ABPANC): Deep Sedation Under a Moderate Sedation Plan

Assessment first: RR 6 with ETCO2 58 mmHg and SpO2 88% is hypoventilation with hypercapnia and hypoxemia, not a monitor artifact to be masked. Withdrawal only to deep trapezius squeeze places her at deep sedation, not the moderate sedation that was planned and consented.

Actions in order:

1. Stop all further sedation dosing and verbally call the endoscopist to pause the scope.
2. Airway: head tilt/chin lift or jaw thrust, confirm the capnography waveform is real and not dislodged, suction ready, reposition, and provide bag-mask positive pressure ventilation if she does not respond to repositioning within seconds. Do not simply raise oxygen flow - that treats the number, not the ventilation.
3. Call for help: second RN and the anesthesia professional or the provider credentialed for deep sedation per site policy.
4. Reassess ventilation, saturation, and level of consciousness after each intervention; trend ETCO2, not just SpO2.

Reversal, if needed: flumazenil 0.2 mg IV over ~15 seconds, titrated upward if benzodiazepine-driven, and/or naloxone 0.04-0.1 mg titrated if opioid-driven. Reasoning: reversal is a rescue, not a routine, because it can precipitate withdrawal, seizures in chronic benzodiazepine users, abrupt pain, and it wears off before the sedative does, causing resedation. Use it when airway support and cessation of dosing fail or when the plan is to abort the case.

Say the assessment, not just the objection: 'She is at a respiratory rate of 6, ETCO2 58, saturating 88%. My assessment is that she is in deep sedation with hypoventilation. I have stopped the drugs and I am supporting her airway. I need you to pause.'

Then state the standard that changes: on the sedation continuum, once a patient no longer responds purposefully to verbal command, the case is deep sedation regardless of what the consent form says. Deep sedation requires continuous capnography, a provider trained and credentialed to rescue a deeply sedated patient, and immediate airway and rescue capability. On this unit that means the anesthesia professional or deep-sedation-credentialed provider is present before proceeding - with one RN and no anesthesia support, continuing as-is is not within the plan.

If the request is repeated: use the chain of command in real time - charge nurse, anesthesia director, nursing supervisor - and document the request, your response, and the escalation timestamps.

If the case continues appropriately: document the change in sedation depth and plan, keep capnography on, maintain airway support, do not increase oxygen to conceal hypoventilation, and re-verify that rescue equipment and personnel are immediately available. Also note that reversal, if given, mandates extended monitoring for resedation.

Resume sedation only when: she responds purposefully to verbal command, RR and minute ventilation are adequate with a normal ETCO2 waveform in the expected range, SpO2 is at or near her baseline on the intended oxygen delivery, and hemodynamics are stable. If a reversal agent was given, do not resume the same drug class casually - resedation risk is high.

Phase I discharge criteria: return to her baseline level of consciousness, patent airway with protective reflexes, SpO2 at baseline on room air (accounting for her home oxygen baseline), stable vital signs compared with preprocedure values, controlled pain and nausea, and no evidence of ongoing respiratory depression on continuous observation. For a COPD patient, compare to her documented baseline, not to an idealized 98%.

Reasoning: the exam-level judgment is recognizing that a normalized saturation is not the endpoint - an opioid- and benzodiazepine-loaded COPD patient can look pink and still be hypoventilating. Document the specific numbers and the criteria applied, plus the time of last sedation dose and any reversal.