An older patient developing delirium after hospital admission for wound infection; what is the most likely cause?

An older patient developing delirium after hospital admission for wound infection; what is the most likely cause?

• A. High television volume
• B. Intravenous fluid therapy
• C. Windowless hospital room
• D. Assessments every 4 hours

Answer: (C)

Delirium in older adults developing during a hospital stay is often triggered by environmental changes that disrupt orientation and the sleep-wake cycle. A windowless hospital room removes daylight and external cues, leading to disorientation, confusion, and sleep disturbance. This sensory deprivation is a strong, modifiable precipitant of delirium, making it the most likely cause among the options. Infection and the need for intravenous fluids can contribute to delirium, but they don’t explain the acute onset as directly as the absence of daylight and environmental orientation. Noise or routine assessments can affect comfort and sleep, but the lack of environmental cues in a windowless room is the key factor driving delirium in this scenario. Providing daylight exposure, clocks, frequent orientation, and a sleep-friendly environment can help prevent delirium.

Delirium in older adults developing during a hospital stay is often triggered by environmental changes that disrupt orientation and the sleep-wake cycle. A windowless hospital room removes daylight and external cues, leading to disorientation, confusion, and sleep disturbance. This sensory deprivation is a strong, modifiable precipitant of delirium, making it the most likely cause among the options. Infection and the need for intravenous fluids can contribute to delirium, but they don’t explain the acute onset as directly as the absence of daylight and environmental orientation. Noise or routine assessments can affect comfort and sleep, but the lack of environmental cues in a windowless room is the key factor driving delirium in this scenario. Providing daylight exposure, clocks, frequent orientation, and a sleep-friendly environment can help prevent delirium.