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NUR 2206 ( LATEST 2024 / 2025 ) EXAM 2 | NEW FULL QUESTIONS AND ANSWERS 100% CORRECT
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NUR 2206 ( LATEST 2024 / 2025 ) EXAM 2 | NEW FULL QUESTIONS AND ANSWERS 100% CORRECT
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NUR 2206 Exam 21. Circadian rhythms
Answer
- Biologic clocks regulate functions
- Complete a full cycle every 24 hours
- Affect fluctuations in VS, metabolism, mood, performance, etc.
- Affected by light/dark
- Some situations and conditions can cause disruption
2. Non-Rem Sleep
Answer
- 75% of total sleep
- Parasympathetic nervous system dominates (rest and digest)
3. NREM sleep characteristics
Answer
- DECREASED temp, HR, RR, BP, metabolic rate
- Profound restfulness
- Slow, rolling eye movements
- Muscle relaxation
- Decreased seizure threshold
4. NREM stage 1
Answer
- Transitional stage drift from wakefulness to sleep
- Lasts minutes (5% of total sleep)
- Person feels drowsy, relaxed
- Can be easily awakened
- Eyes roll from side to side
- Involuntary muscle jerking
,- HR and RR decrease slightly
5. NREM stage 2
Answer
- Light sleep-easily aroused
- Body continues to slow down
- Eyes are still
- DECREASED temp, HR, RR, BMR
- 50-55% of total sleep
6. NREM stage 3
Answer
- Body processes slow down
- Deep sleep-more difficult
- Profound muscle relaxation
- Thought that growth hormone is released in this stage
- 10% of total sleep
7. NREM stage 4 (delta sleep)
Answer
- DECREASED temp, HR, RR, BP, metabolic rate
- HR and RR <20-30% wakeful state
- Muscles very relaxed-rarely move
- Deepest sleep - very difficult to arouse
- Brain waves slow
- Thought to restore body physically
- Protein synthesis and tissue repair
- 10% of total sleep
8. REM sleep (25%)
Answer
- Sympathetic nervous system dominates (fight or flight)
- Report dreams if aroused
, - Associated with changes in cerebral blood flow
- Increased cortical activity
- Increased O2 consumption
- Release of epinephrine
9. REM sleep characteristics
Answer
- Irregular eye movements
- Vivid, colorful dreaming
- INCREASED gastric secretions
- Erections in males of all ages
- INCREASED temp, HR, RR, BP, metabolic rate
- DECREASED muscle tone, DTRs
- Restores the mind
- Involved in mental and emotional balance
- Helps with learning, memory, and adaptation
- Associated with adrenal hormone release
- Potential for dysrhythmias and apneic episodes
10. sleep cycle
Answer
- Cycle repeats 4-5 times nightly
- Each cycle lasts ~90-100 minutes
- Lengthens towards morning
If awakened, return to NREM stage 1
- More delta (deep) sleep occurs first half of the night
11. factors affecting sleep
Answer
- Developmental considerations Infants sleep more
Older adults sleep less (less REM)
- Psychological stress
- Motivation
- Culture
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