Certified Rehabilitation Registered Nurse (CRRN) Practice Exam

Disable ads (and more) with a membership for a one time $2.99 payment

Prepare for the CRRN Exam with practice quizzes that include flashcards, hints, and explanations. Ensure success by testing your rehabilitation nursing knowledge with confidence-building tools and resources.

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

What can cause REM suppression during sleep?

Caffeine
Alcohol
Nicotine
Heavy meals

The correct answer is: Alcohol

Alcohol is known to cause REM suppression during sleep. When consumed, alcohol can initially have a sedative effect, which may help one fall asleep more quickly. However, as the body metabolizes alcohol, it leads to disruptions in the sleep cycle. This disruption is particularly pronounced in the REM stage of sleep, which is crucial for cognitive functions such as memory consolidation and emotional regulation. During the later stages of the sleep cycle, as the effects of alcohol wear off, individuals may experience lighter sleep stages instead of the deeper, restorative REM sleep. This can lead to increased awakenings and fragmented sleep, impairing overall sleep quality. Thus, alcohol consumption is particularly impactful on the REM stage, leading to its suppression and affecting the overall restorative quality of sleep.