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Friday, October 19, 2007

Rest And Sleep :: Fundamental Of Nursing :: Review For Nursing Licensure Examination

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Review For Nursing Licensure Examination :: Fundamental Of Nursing :: Rest And Sleep Slide Transcript
Slide 1: Rest and Sleep Fundamentals of Nursing Nurse Licensure Examination Review

Slide 2: Sleep REST- a state of calmness,  relaxation without emotional stress, and freedom from anxiety SLEEP- an altered state of  consciousness in which the individual’s perception of and reaction to the environment are decreased.

Slide 3: Sleep This can be discussed simply by considering the three basic research approaches:  ELECTROPHYSIOLOGIC  HORMONAL and  NEURAL

Slide 4: Sleep Physiology ELECTROPHYSIOLOGIC  The Electrophysiological approach centers on the polygraph recordings of electrical changes in the brain waves (EEG), eye movements (EOG) and muscle activity (EMG).  This approach characterizes sleep as Non-Rapid Eye Movement sleep (NREM) and the Rapid-Eye movement sleep (REM)

Slide 5: Fig. 8.33

Slide 6: Sleep Physiology Neural  The Neural approach views sleep as an active process involving the RETICULAR activating system (RAS) and the interaction of Neurotransmitters.  The RAS is a network of neurons in the medulla, pons and midbrain with projections to the spinal cord, hypothalamus, cerebellum and cerebrum.

Slide 7: Sleep Physiology Neural SEROTONIN is said to be the  MAJOR neurotransmitter associated with sleep, produced in the median raphe nuclei of the brainstem. Serotonin decreases the activity  of the RAS inducing sleep. REM sleep appears to be due to the influence of norepinephrine.

Slide 8: Sleep Physiology Hormonal The Hormonal approach views  sleep as a pattern affected by hormones. MELATONIN from the pineal gland in the brain is secreted in enormous quantities during sleep. Its activity is influenced by the  relationship of darkness and light.

Slide 9: Sleep Physiology Hormonal  ACTH is also high during the early period of sleep and CORTISOL rises toward the end of the nighttime sleep period.  GROWTH HORMONE and PROLACTIN also increase during deep sleep.

Slide 10: FUNCTIONS OF SLEEP Restores normal levels of 1. activity and normal balance among parts of the nervous system Necessary for protein 2. synthesis

Slide 11: Sleep TYPES OF SLEEP There are two types of sleep  identified: The NREM sleep (or the non-REM  sleep) and The REM sleep ( rapid eye  movement sleep)

Slide 12: Sleep 1. THE NREM SLEEP  Also referred to as the SLOW wave sleep, because the brain waves of the client are slower than the alpha and beta waves of an awake or alert person.  It is a deep, restful sleep  There is a decreased physiologic functions  All metabolic processes are reduced  It is divided into FOUR stages:1-4

Slide 13: NREM Sleep STAGE 1- the stage of very light sleep, sleeper can readily be awakened, lasts for a few minutes. The eyes tend to roll slowly from side to side, and muscle tension remains absent. STAGE 2- the stage of light sleep, body processes continues to slow down, and lasts about 10-15 minutes. Constitutes 40-45% of TOTAL sleep!

Slide 14: NREM Sleep STAGE 3-refers to a medium-depth sleep where vital signs and metabolic processes slow further because of the PARASYMPATHETIC nervous system influence. The sleeper is difficult to arouse.

Slide 15: NREM Sleep STAGE 4-this is the deepest sleep or delta sleep. It is the stage where the heart rate and respiratory rate drop 20-30% below those exhibited during waking hours. This stage is thought to restore the body physically. Some dreaming may occur here. This stage may be absent in the elderly.

Slide 16: REM Sleep THE REM SLEEP  This sleep type usually recurs about every 90 minutes and lasts 5 to 30 minutes.  Other name: PARADOXICAL Sleep  The EEG pattern resembles that of the “awake” state.  This is not as restful as NREM sleep  Most dreams take place during this period and the dreams are usually remembered or consolidated to memory

Slide 17: REM Sleep The brain is highly active with metabolic rate increasing as much as 20%  The sleeper may be very difficult to arouse  There are rapid conjugate eye movements, muscle tone is depressed, but gastric secretions increase, HR and RR are increased and IRREGULAR  This sleep period becomes longer as the night progresses.

Slide 18: NREM versus REM NREM REM Slow eye movement Rapid Eye movement Restful sleep NOT restful Decreased metabolism Increased metabolism Vital signs LOW Vital signs Irregular Muscle tone maintained Muscle tone depressed NO vivid dreams Dreams occur

Slide 19: Sleep Cycle All of us undergoes around 5 cycles  of sleep of NREM to REM We begin with STAGE 1234 32REM

Slide 20: Sleep cycle AWAKE Stage 1 REM Stage 2 Stage 2 Stage 2 Stage 3 Stage 3 Stage 3 Stage 4 Stage 4

Slide 21: Sleep Variations For NEONATES- newborns sleep for 16-  18 hours divided into 7 sleep periods. They have two sleep states- QUIET sleep (their NREM sleep) is characterized by closed eyes, regular respirations and absence of eye/body movements; ACTIVE sleep is characterized by eye  movements observable through the closed eyelids, with body movements and irregular respirations.

Slide 22: Sleep Variations For INFANTS- some infants sleep for 22 hours, while the average is 12-14 hours. Their sleep cycle is shorter (about 50-60 minutes). The REM sleep is 20-30% (which decreases as the infant grows and will stabilize at 20% until late in adulthood). About 50% of the sleep is spent during LIGHT sleep (Stage 1).

Slide 23: Sleep Variations For TODDLERS- the sleep  requirement is 10-12 hours a day. The same 20-30% of sleep is REM. The normal sleep wake pattern is established at age 2-3. Bedtime rituals often develop  and assume great importance in providing nighttime security.

Slide 24: Sleep Variations For PRESCHOLERS- they usually  require 11-12 hours of sleep per night. The REM sleep is still 20-30%. Many of the preschoolers resist going to sleep Remember that the preschoolers  have fear of the dark that nurses must anticipate to guide the mothers

Slide 25: Sleep Variations For PRESCHOLERS-  Suggested Measures by Pilliteri:  Read bedtime stories until patient 3. sleeps Reassure that child is Safe 4. Monitor environmental stimuli 5. such as television and noise

Slide 26: Nursing Interventions Assessment relative to a client’s  sleep includes a sleep history, sleep diary, physical examination, and a review of laboratory studies The single most important  criterion for adequacy of sleep/rest is the patient’s statement.

Slide 27: Nursing Interventions 1. CLIENT HEALTH TEACHING- nurses should teach the client about the importance of rest and sleep.  The following are needed to be taught- the conditions that promote sleep, the safe use of sleep medications, the effects of meds on sleep and the effects of the diseased states in their sleep.

Slide 28: Nursing Interventions 2. SUPPORTING BEDTIME RITUALS  Nurses can promote sleep by supporting the rituals like an evening stroll, music, TV, bath and prayer.  Children should promote pre-sleep routines like bedtime stories, holding the favorite toys, drinking warm milk etc.

Slide 29: Nursing Interventions 3. CREATING A RESTFUL ENVIRONMENT- darkened room or dim-lit room can be  provided for the patients. Noise should be reduced to a  minimum environmental distractions should be  eliminated.

Slide 30: Nursing Interventions 3. CREATING A RESTFUL ENVIRONMENT- SAFETY: placing beds in low  positions, using night-lights and placing call beds within easy reach. People with impaired physical  mobility should be assisted with voiding before retiring. Fluids may need to be restricted in  the evening

Slide 31: Nursing Interventions 4. PROVIDING COMFORT AND RELAXATION- comfort measures are essential to help the client to fall asleep and stay asleep. providing loose-fitting nightwear,  hygienic routines providing clean dry linens  offering back massages  positioning patients in a comfortable  position, correct medication administration to avoid sleep interruptions, etc.

Slide 32: Nursing Interventions 5. ENHANCING SLEEP WITH MEDICATIONS- sleep medications are prescribed on a PRN basis for clients. Medications include- sedatives,  hypnotics, anti-anxiety drugs, and tranquilizers. Hypnotics may be used as a short  term intervention during situational induced sleep pattern disturbance

Slide 33: Sleep interventions Sleep Nursing Implications pattern of Infants Tech parents to position infant ON THE BACK. Sleeping in PRONE position increases the risk for sudden infant death syndrome Advise parents that eye movements, groaning, grimacing and moving are normal Encourage parents to have infant sleep in a separate crib not their bed Caution parents about placing pillows, quilts, stuffed animals in the crib which may pose suffocation hazards Toddlers Establish a regular bedtime routine Advise parents about the value of a routine sleeping pattern with minimal variation Encourage attention to safety once child moves from crib to bed. A gate may be needed across the door if the child will wander around

Slide 34: Sleep interventions Sleep pattern Nursing Implications of Encourage parents to continue bedtime routines Preschoolers Advise parents that waking from nightmares or terrors are common. Waking the child and comforting him generally helps A nightlight that is soothing can be also utilized Discuss the facts that the stress of beginning School-age school may interrupt normal sleep Advise that a relaxed, bedtime routine is most helpful Inform parents about child’s awareness of the concept of death possibly occurring at this stage. Encourage parental presence and support to help alleviate concerns

Slide 35: Sleep interventions Sleep pattern Nursing Implications of Adolescents Advise parents that complaints of fatigue or inability to do well in school may be related to not enough sleep. Excessive daytime sleepiness may make teenagers more vulnerable to accidents and behavioral problems Young adults Reinforce that developing good sleep habits has a positive effect on health Suggest use of relaxation techniques and stress reduction If loss of sleep is a problem, explore lifestyle demands and stress as possible etiologies

Slide 36: Sleep intervention Middle-aged Encourage adults to investigate consistent adults sleep difficulties to exclude pathology or anxiety- depression as the causes Older adults Emphasize concern for SAFE environment because it is common for older people to be temporarily confused and disoriented when they first awake Use sedative with EXTREME caution because of declining physiologic function and poly-pharmacy Encourage them to discuss sleep concerns to the physician

Slide 37: Sleep deprivation A prolonged disturbance in amount,  quality and consistency of sleep Restlessness, irritability,  withdrawal, speech deterioration

Slide 38: ALTERED SLEEP PATTERNS: COMMON SLEEP DISORDERS PARASOMNIAS  is a behavior that may interfere with sleep or a behavior that occurs normally during waking hours but abnormally during sleep.

Slide 39: ALTERED SLEEP PATTERNS: COMMON SLEEP DISORDERS PARASOMNIAS  Bruxism- commonly called night teeth-grinding occurring during stage 2 sleep.

Slide 40: ALTERED SLEEP PATTERNS: COMMON SLEEP DISORDERS PARASOMNIAS  Nocturnal Enuresis- bedwetting occurring during sleep in children over 3 years old. It occurs in the following- 1-2 hours after falling asleep, and when rousing from NREM stages 3 to 4.  Nocturnal Erections/Emissions- “wet dreams” occurring during adolescence.

Slide 41: ALTERED SLEEP PATTERNS: COMMON SLEEP DISORDERS PARASOMNIAS Periodic Limb movements disorders- the  legs jerk twice or three times per minute during sleep and is most common among elders. Sleep-talking- talking during sleep occurs  during NREM sleep before the REM sleep. Somnambulism- “sleepwalking” occurs  during stage 3 and 4 of NREM. It is episodic and occurs 1-2 hours after falling asleep.

Slide 42: PRIMARY SLEEP DISORDERS Definedas disorders in which the person’s sleep problem is the main disorder.

Slide 43: PRIMARY SLEEP DISORDERS INSOMNIA MOST COMMON chronic sleep disorder, is the perceived difficulty or inability to obtain an adequate amount or quality of sleep; usually a result of physical discomfort, and often due to mental over- stimulation due to anxiety. Treatment includes developing new behavior pattern that induce sleep.

Slide 44: PRIMARY SLEEP DISORDERS INITIAL INSOMNIA- difficulty in  falling asleep INTERMITTENT INSOMNIA-  difficulty in staying asleep because of frequent or prolonged waking TERMINAL INSOMNIA- early  morning or premature waking

Slide 45: PRIMARY SLEEP DISORDERS HYPERSOMNIA- excessive sleep, particularly in the daytime. Causes can be medical conditions like CNS damage, kidney, liver or metabolic disorders like diabetes and hypothyroidism

Slide 46: PRIMARY SLEEP DISORDERS NARCOLEPSY – is a sudden wave of overwhelming or irresistible sleep attacks and sleepiness that occurs during the day. The person with narcolepsy literally fall asleep standing up, while driving a car, in the middle of conversation or even while swimming

Slide 47: PRIMARY SLEEP DISORDERS NARCOLEPSY The cause is UNKNOWN. Hypothesis includes the decreased HYPOCRETIN in the CNS that regulates sleep. The sleep starts directly with REM phase. The patient may have cataplexy (sudden loss of motor tone), hypnagogic hallucinations (nightmare or vivid dream) and sleep paralysis. Drug therapy includes MODAFINIL and Ritalin (stimulants) that may cause wakefulness

Slide 48: PRIMARY SLEEP DISORDERS SLEEP APNEA- is the periodic cessation of breathing during sleep. Usually, the period of apnea lasts from 10 seconds to 2 minutes occurring at least 5 times per hour. This usually gives rise to oxygen desaturation and carbon dioxide retention. POLYSOMNOGRAPHY is the only method that can confirm sleep apnea.

Slide 49: PRIMARY SLEEP DISORDERS Obstructive sleep apnea- occurs  when the structures of the pharynx or oral cavity block the airflow. Central apnea- involves a defect in  the respiratory center in the brain with neurological failure to trigger respiratory effort. Mixed apnea- a combination of  central and obstructive apnea

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