sleep misc
Terms
undefined, object
copy deck
- At what age do sleep spindles appear
- around 2 months
- pacemaker for sleep/wake cycle resides in the
- suprachiasmatic nuclei.
- Records airflow by changes in air temperature
- Thermistors.
- Strain gauges used in NPT's are made of
- silastic tubing filled with mercury.
- high impedances, electrically noisy environment and poor electrode contact are all causes of what?
- 60 hz interference
- High filter setting for emg
- 90 hz, or highest available.
- Ratio of REM activity to REM time
- REM density
- A filter effect on waveforms causing there peaks to appear to shift to a different point in time.
- phase shift
- Lowering the HFF shifts the waves to the right causing them to appear slightly __________.
- Later
- Increasing the LFF creates a shift to the left causing them to appear slightly __________.
- earlier
- Amplitude range expressed by the deflection of the pens
- dynamic range
- T-wave represents
- ventricular repolarization.
- An intrusion of alpha activity superimposed on delta slow wave sleep
- alpha-delta
- A pattern of breathing wtih gradual increase in depth and sometimes in rate to a maximum followed by a decrease to temporary cessation (apnea)
- Cheyne-Stokes
- The content of gas remaining in the lungs at the end of a normal respiration
- Functional Residual capacity
- A pt's maximum breathing ability is represented by
- Vital capacity.
- The P-wave represents
- atrial depolarization
- Does a PET scan show structures of the brain?
- NO
- Essential for initiation and maintenance of wakefulness
- Reticular activating system
- other names for rem sleep
-
Paradoxical sleep,
desynchronized sleep
active sleep
dream sleep - OSA in children suppresses
- slow wave sleep
- osa in adults suppresses
- REM sleep.
- REM with no movement
- Tonic REM
- Eye movements and twitching during REM
- Phasic REM
- characteristics of REM
-
Variable heart rate.
decreased temperature
irregular respirations
decrease muscle tone - What do Tricyclic antidepressants do to REM sleep
- Supresses rem sleep
- The electrode closest to the cornea becomes...
- postive causing a downward deflection.
- Other than narcolepsy when are sleep onset rem periods seen
-
Newborns
schizophrenics
drug withdrawal. - On an NPT if one gauge pen falls below the baseline, a likely cause would be that the gauge is
- too large
- sleep related seizures may also present as
-
enuresis
pavor nocturnus
somnoambulism - site of airway closure
- pharynx
- A small current which flows along an undesired circuit path usually to the ground
- leakage current
- Name 3 drugs that suppress REM
-
MAO inhibitors
benzodiazepines
tricyclic antidepressants - biological marker of depression
- Short REM latency
- Chronic use of sleeping pills cause
-
Decrease in stages 3, 4 and REM.
Reduced K-complexes and spindles
Increased stage 1 and 2. - Which type of antidepressant aggrevates myoclonus
- Tricyclic antidepressants
- What percentage of newborn sleep does REM occupy
- 50%
- Sweating is absent in...
- REM
- Patient's who develop a 25-27 hour biological clock are said to have a
- hypernycothermal syndrome
- peak incidence of SIDS is
- 2-4 months
- maximum amount of gas the lungs can contain
- Total lung capacity
- The narcoleptic tetrad consists of what?
-
Sleep attacks
cataplexy
sleep paralysis
hypnogogic hallucinations - Chronic alcoholism decreases what stage of sleep
- REM
- During an action potential _______ _________ is increased first then __________.
-
Sodium permeability
potassium. - What agent is effective for sterilization of electrodes used on AID's patient's
- Sodium hypochloride
- Normal Arterial P02 value is
- 80-100 mmHg
- normal arterial PCo2 is
- 40-50 mmHg
- Time in weeks of growth in the uterus
- gestational age
- How much does body temperature fall at sleep onset.
- 1 degree
- When is lowest body temperature
- 3-4 hours before awakening.
- Circadian rhythm is first set by ______ and then by ________.
-
Light
temperature - K-complexes appear between
- 4-6 months
- age from conception to birth
- gestational age
- gestational age plus time in weeks since birth
- conceptional age.
- Can be used to further differentiate between central and obstructive apneas
- esophageal pressure monitors and intercostal emg.
- T_____ is a common frequency seen in pediatric eeg
- theta
- origin of alpha activity
- occipital area
- best area for identifying sleep patterns
- central area
- least likely area to display alpha
- frontal area
- Respiration artifact is
- high amplitude, low frequency
- electrical artifact is high or low frequency
- high frequency
- Rise in Co2 indicates
- rebreathing of CO2
- indicates a decreasing system or pulmonary fusion, hypothermia, sedation, hyperventilation, hypovolemia, decreasing cardiac output
- decrease in co2
- normal range for ETCO2
- 35-45 mmHg.
- End tidal co2 is measured at the _____ of respiration
- end
- 3 ways Co2 is transported in the blood
-
1. 5-10% as gas. Reflected by PCO2.
2. 20-30% is bound to blood proteins. The major one being hemoglobin.
3. 60-70% is carried as bicarbonate (HCo3) - indicator of organic brain disease.
- excessive delta
- Name of antigen indicative of narcolepsy
- DR2
- maximum time for MSLT naps if pt. does fall asleep
- 34 minutes
- Pavor nocturnus
- night terrors
- pressure of the pens
- dampening
- Stabilizes the pen position between the on/off position. Puts amplifier at electrical 0 position.
- electrical baseline
- Adusts the difference between pen times and pen angle
- mechanical baseline
- What is overlap syndrome
- OSA and COPD together
- COPD pt's retain what
- Co2