CCSH Prep Questions And Correct Answers With
Complete Solutions (2024/2025)
1. 16-18 hours per day;
sleep is polyphasic.:
Newborns
2. 14-15 hours and levels off around that value. Sleep becomes
less distrib- uted, with primary sleep at night and nap(s)
during the day.: 16 weeks
3. sleep continues to decline; duration is 10-12 hours: ages 2-5
years
4. sleep becomes monophasic; duration about 10 hours: age 10
5. sleep duration declines sharply to 8-9 hours; circadian phase
delay: adoles- cence,
6. sleep duration is relatively
stable around 7-8 hours:
adulthood
1/
,7. sleep time decreases and a biphasic pattern may re-
emerge; circadian phase advance: older age
8. With aging there is a in rhythm amplitude - circadian,
endocrine and metabolic: reduction
9. From early adulthood to midlife N3 , replaced by N1, N2
sleep, with no significant decrease in REM or increased sleep
fragmentation.: decreases
10. in growth hormone (GH) parallels decrease in SW3 (N3)
from midlife to late life.: Decrease
11. In late life there is wake at the
expense of both NREM and REM sleep.: increased
12. Heart rate in REM is
Regular or irregular: irregular
13. Heart rate in NREM is
Regular or irregular ?: Regular
14. Respiratory rate in REM is
2/
,Regular or irregular ?: irregular
15. Respiratory rate in NREM is
Regular or irregular ?: Regular
16. Blood pressure in REM is
Regular or variable?: variable
17.Blood pressure in
NREM is Regular or
variable?: Regular
3/
, 18. Skeletal muscle tone in REM is
Preserved or absent?: absent
19. Skeletal muscle tone in NREM is
Preserved or absent?: Preserved
20. Brain 02 consumption in REM is
Reduced or increased?: increased
21. Brain 02 consumption in NREM is
Reduced or increased?: Reduced
22. Response to Co2 in REM is
Same as W or depressed?: depressed
23. Response to Co2 in NREM is
Same as W or depressed?: Same as W
24. Response to O2 in REM is
4/
Complete Solutions (2024/2025)
1. 16-18 hours per day;
sleep is polyphasic.:
Newborns
2. 14-15 hours and levels off around that value. Sleep becomes
less distrib- uted, with primary sleep at night and nap(s)
during the day.: 16 weeks
3. sleep continues to decline; duration is 10-12 hours: ages 2-5
years
4. sleep becomes monophasic; duration about 10 hours: age 10
5. sleep duration declines sharply to 8-9 hours; circadian phase
delay: adoles- cence,
6. sleep duration is relatively
stable around 7-8 hours:
adulthood
1/
,7. sleep time decreases and a biphasic pattern may re-
emerge; circadian phase advance: older age
8. With aging there is a in rhythm amplitude - circadian,
endocrine and metabolic: reduction
9. From early adulthood to midlife N3 , replaced by N1, N2
sleep, with no significant decrease in REM or increased sleep
fragmentation.: decreases
10. in growth hormone (GH) parallels decrease in SW3 (N3)
from midlife to late life.: Decrease
11. In late life there is wake at the
expense of both NREM and REM sleep.: increased
12. Heart rate in REM is
Regular or irregular: irregular
13. Heart rate in NREM is
Regular or irregular ?: Regular
14. Respiratory rate in REM is
2/
,Regular or irregular ?: irregular
15. Respiratory rate in NREM is
Regular or irregular ?: Regular
16. Blood pressure in REM is
Regular or variable?: variable
17.Blood pressure in
NREM is Regular or
variable?: Regular
3/
, 18. Skeletal muscle tone in REM is
Preserved or absent?: absent
19. Skeletal muscle tone in NREM is
Preserved or absent?: Preserved
20. Brain 02 consumption in REM is
Reduced or increased?: increased
21. Brain 02 consumption in NREM is
Reduced or increased?: Reduced
22. Response to Co2 in REM is
Same as W or depressed?: depressed
23. Response to Co2 in NREM is
Same as W or depressed?: Same as W
24. Response to O2 in REM is
4/
