Documented anxiety, occurring in almost half of ICU patients with length of stay ≥48 hours, was associated with a history of anxiety and/or substance abuse, and greater ICU severity of illness, delirium, psychiatric medications, and length of stay. Increased awareness along with more standardized protocols for assessment of anxiety in the ICU, as well as greater evaluation of non-pharmacological treatments for anxiety symptoms in the ICU are warranted.
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May et al. (2020) studied this question.
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