A hospice nurse is caring for a 72-year-old patient with end-stage lung cancer. The patient's family reports that the patient has been increasingly restless, picking at bedclothes, and appears to be reaching for something that isn't there. Vital signs show: temperature 99.2°F (37.3°C), heart rate 110 bpm, respirations 28/min and irregular, blood pressure 90/50 mmHg. What is the nurse's priority assessment at this time?

Restlessness, picking at bedclothes, and reaching motions in a non-verbal end-stage cancer patient are classic signs of pain. A behavioral pain assessment tool is the priority to evaluate pain and guide management. Other assessments are less urgent in this palliative context.

Clinical Context and Initial Interpretation

This scenario describes a patient at the end of life exhibiting signs of terminal restlessness or delirium, which can be deeply distressing for families to witness. The patient's actions—picking at bedclothes and reaching for unseen objects—are classic examples of carphologia (picking at bedclothes) and perceptual disturbance. The vital signs are significant: a heart rate of 110 bpm, irregular respirations at 28/min, and hypotension at 90/50 mmHg. While these could signal a number of physiological derangements, in the context of end-stage cancer and terminal agitation, the most critical and often overlooked underlying cause is unmanaged pain.

Why Pain Assessment is the Priority

In non-communicative or cognitively impaired patients, especially at the end of life, pain often manifests not as a verbal report but through behavioral changes. The patient's restlessness, agitation, and non-purposeful movements are cardinal behavioral indicators of pain. This concept is strongly supported by the provided evidence. The study by Chen et al. ^[1] establishes a direct causal link between unmanaged pain and emergence agitation (EA), demonstrating that effective pain control with a nerve block significantly reduces agitation. The physiological mechanism is a sympathetic nervous system activation triggered by pain, which perfectly explains the patient's tachycardia and tachypnea. The study by Liu et al. ^[3] reinforces this, explicitly stating that "postoperative pain is a significant factor that increases the incidence of emergence agitation." While these studies are in pediatric postoperative settings, the pathophysiological principle—that pain is a primary driver of agitation—is directly transferable to this end-of-life scenario. Therefore, systematically assessing for pain using a validated behavioral pain assessment tool is the nurse's first and most critical action to identify and treat the root cause of the patient's distress.

Analysis of Other Options

The other options, while part of a thorough assessment, do not address the most probable and immediately treatable cause of the agitation.

- Option 1 (Assess level of consciousness): While the patient is exhibiting signs of delirium, a formal Glasgow Coma Scale assessment is a component of a broader neurological evaluation. It describes the symptom but does not identify the underlying driver. The priority is to rule out the most common and reversible cause first, which is pain. The agitation in the study by Chen et al. was not a primary neurological event but a direct consequence of pain ^[1].

- Option 3 (Assess oxygen saturation and respiratory pattern): Hypoxia can certainly cause agitation and altered mental status. However, the patient's irregular, tachypneic breathing pattern, combined with agitation, is a classic presentation of pain and sympathetic stimulation, as seen in the studies where pain management reduced agitation [1, 3]. While checking oxygen saturation is important, it is not the priority assessment over evaluating for pain, which is the more likely trigger given the clinical picture of terminal restlessness.

- Option 4 (Assess blood glucose and hydration status): Metabolic disturbances like hypoglycemia or severe dehydration can cause confusion and agitation. However, in a hospice patient with end-stage cancer, these are less likely to be the acute precipitant of sudden, severe restlessness compared to pain. The research evidence directly connects the behavioral state of agitation to a pain stimulus, making pain assessment the immediate priority [1, 3]. The principle from the intervention study on medication adherence and the psychological management study highlights the importance of addressing the primary symptom driver—in this case, what is most directly causing the patient's distress—to improve the patient's state.