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Zorluk: ZorPharmacologic Interventions

A 53-year-old man is brought to the emergency department after falling from a 20-foot scaffolding. He is unresponsive and has a Glasgow Coma Scale score of 6 (Eye 1, Verbal 1, Motor 4). His pupils are equal and reactive, but he has a large right frontal hematoma. Vital signs are temperature 36.5°C (97.7°F), heart rate 108/min, blood pressure 172/98 mmHg, and respiratory rate 22/min. The trauma team decides to secure the airway via rapid sequence intubation (RSI) using a neuroprotective strategy to mitigate potential spikes in intracranial pressure. Pre-oxygenation with 100% oxygen is initiated.

Arrange the following pharmacologic agents in the correct chronological sequence of administration according to standard rapid sequence intubation protocols for this patient.

  1. 1Intravenous fentanyl
  2. 2Intravenous etomidate
  3. 3Intravenous rocuronium
  4. 4Intravenous propofol continuous infusion

Cevap

The correct sequence of administration is Fentanyl, followed by Etomidate, followed by Rocuronium, and finally a Propofol continuous infusion.
Standard rapid sequence intubation involves sequential phases: preparation, preoxygenation, pretreatment, paralysis with induction, positioning, placement, and post-intubation management. Pretreatment (such as fentanyl) mitigates the physiologic response to laryngoscopy and should be given first. Induction (etomidate) rapidly produces unconsciousness. Paralysis (rocuronium) must immediately follow induction to facilitate tube placement. Finally, post-intubation management requires starting a continuous sedative infusion (propofol) to ensure the patient does not awaken while still paralyzed by the long-acting neuromuscular blocker.

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1
Administer pretreatment
Sympathetic blunting achieved
Intravenous fentanyl is given approximately 3 minutes before induction to prevent surges in intracranial pressure and blood pressure associated with airway manipulation.
2
Administer induction agent
Rapid unconsciousness induced
Intravenous etomidate is given as the induction agent to render the patient unconscious while maintaining hemodynamic stability.
3
Administer neuromuscular blockade
Complete chemical paralysis achieved
Intravenous rocuronium is pushed immediately after the patient loses consciousness to paralyze the vocal cords and skeletal muscles, facilitating endotracheal intubation.
4
Initiate post-intubation sedation
Ongoing sedation maintained
Once the endotracheal tube is confirmed, a continuous intravenous propofol infusion is started to keep the paralyzed patient adequately sedated.

Anahtar Kavram

Rapid Sequence Intubation (RSI) Pharmacologic Sequencing
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Pharmacologic Interventions

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