Exam 2 Flashcards
Insomnia
difficulty getting to sleep or staying asleep at night.
transient insomnia
maybe caused by stress, excitement, or a change in sleeping arrangements or occurs while traveling.
Chronic insomnia
underlying medical behavior, or psychiatric problem.
sleep apnea
condition in which the person stops breathing for brief periods during sleep.
obstructive apnea
is the most common type. it is caused by a relaxation of the soft tissues, which allows partial to total obstruction of the airway.
snoring
is a harsh sound that accompanies breathing during sleep, it is caused by vibration or obstruction of the airway passages at the back of the nose and mouth.
Narcoepsy
sudden onset, recurrent, uncontrollable, brief episodes of sleep during normal hours of wakefulness in a well- rested person.
normal sleep follows a course through two states
NON rem and REM
REM sleep
is the time in which you dream and a period of high levels of activity. HR, BP, and respirations are similar to the levels when awake.
NON REM and REM last, and how many times does a person cycle through these two states.
about 90 minutes, and repeats the cycle 5 or 6 times.
The first state of NON REM
is the transition stage. light sleep and muscles relax.
The second stage of NON REM
falls into a deeper sleep, brain wave activity becomes larger, with bursts of electrical activity.
how long does stage 2 NON REM last
10 to 20 minutes
how long does NON REM stage one last
this stage lasts a few minutes
stage 3 NON REM
delta sleep, or slow wave sleep period, high voltage slow brain waves occur. RR and HR slow in this stage and body become immobile.
stage 3 NON REM last?
20 to 40 minutes.
stage 4 NON REM
deepest sleep, it is hard to wake someone up
stage 4 NON REM last
30 minutes.
REM lasts?
20 minutes, 25 percent of the night is spent in REM SLEEP.
Fiberglass cast
Synthetic casts dry from 7 to 20 minutes and may be hardened enough to be durable within 30 mins.