Examkin

Question

Difficulty: HardEnd-of-Life and Palliative Care

A 55-year-old man is evaluated in the intensive care unit (ICU) prior to withdrawal of life-sustaining treatment. He was admitted 14 days ago with severe acute respiratory distress syndrome (ARDS) secondary to viral pneumonia. Despite prone positioning and maximal medical therapy, his pulmonary function has irreversibly declined. He is currently intubated and mechanically ventilated. To manage severe ventilator dyssynchrony, he has been maintained on continuous intravenous infusions of propofol, fentanyl, and cisatracurium. Following multidisciplinary meetings, his wife, who is his designated healthcare proxy, decides to transition to comfort measures only. The medical team agrees that further aggressive interventions are futile, and the plan is to proceed with terminal extubation. His current vital signs are temperature 37.2°C (99.0°F), blood pressure 105/65 mm Hg, and heart rate 95/min.

Which of the following is the most appropriate next step in management regarding the patient's medication infusions?

  1. A
    Discontinue the propofol and fentanyl infusions to establish the patient's baseline neurologic status prior to extubation
  2. B
    Maintain the cisatracurium infusion during and after extubation to prevent the appearance of agonal respirations
  3. Discontinue the cisatracurium infusion and verify clearance of neuromuscular blockade prior to extubationAnswer
  4. D
    Discontinue the cisatracurium, propofol, and fentanyl infusions simultaneously at the moment of extubation
  5. E
    Transfer the patient to a long-term acute care hospital to perform the terminal extubation

Answer

The most appropriate next step is to discontinue the cisatracurium infusion and verify the clearance of neuromuscular blockade prior to terminal extubation.
The correct action is to discontinue the cisatracurium infusion and verify the clearance of neuromuscular blockade before proceeding with extubation. When withdrawing mechanical ventilation in a palliative setting, the primary goal is patient comfort. If a patient remains under neuromuscular blockade (paralysis), they lose the motor function required to exhibit signs of pain, dyspnea, or psychological distress (such as grimacing or tachypnea). Consequently, the medical team is blinded to the patient's suffering and cannot appropriately titrate analgesics (like fentanyl) or sedatives (like propofol). It is a critical ethical and clinical standard to ensure paralytics are fully cleared—often verified by a train-of-four monitor or clinical observation—before the endotracheal tube is removed.

Step-by-Step Solution

1
Identify the clinical scenario and the goal of care.
The patient is undergoing withdrawal of life-sustaining treatment (terminal extubation) and is currently on continuous infusions of a sedative (propofol), an analgesic (fentanyl), and a neuromuscular blocking agent (cisatracurium).
Establishing the current medical interventions is necessary to plan a safe and ethical withdrawal process.
2
Evaluate the role of neuromuscular blocking agents in palliative extubation.
Neuromuscular blockade must be completely cleared before extubation.
Paralyzed patients cannot exhibit clinical signs of distress, such as tachypnea or grimacing. Extubating a paralyzed patient prevents the clinician from adequately assessing and treating pain or dyspnea.
3
Determine the correct management of sedatives and analgesics.
Propofol and fentanyl should be maintained or appropriately titrated upward.
These medications are essential to manage the anticipated dyspnea and discomfort that arise following the removal of mechanical ventilation.

Key Concept

During withdrawal of life-sustaining treatment (terminal extubation), neuromuscular blocking agents must be discontinued and cleared prior to extubation to allow accurate assessment and management of patient distress.
Rate this question

Topics

End-of-Life and Palliative Care

More questions from this topic