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50 Cards in this Set
- Front
- Back
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Which should be reviewed by the technician before beginning the study? |
1) History and Physical 2) Medications 3) Procedure order and protocol |
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Which procedures should be completed by the technician BEFORE patient arrival? |
1) Bedroom inspection 2) Check of Audio Visual (AV) 3) Check of emergency equipment |
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Which procedures are completed prior to "lights out"? |
1) Patient orientation and education 2) Physiologic calibrations (bio-cals) 3) Evening questionnaire |
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The patient's usual bedtime is part of the: |
Sleep history |
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If a patient is noted as being "supine," what does that mean? |
The patient is laying on their back |
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Where is the Mastoid located? |
Behind the ears |
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Where is the Autonomic branch of the Peripheral Nervous System located? |
In the lower brainstem |
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What would be described as a "quick response mobilizing system"? |
The sympathetic nervous system |
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The total distance from nasion to inion is 42 cm. What is the total distance from nasion to CZ? |
21 cm |
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The total distance from left pre-auricular to right pre-auricular is 35 cm. What is the distance from left pre-auricular to T3? |
3.5 cm |
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The head circumference is 60 cm. What is the distance from O1 to O2? |
6 cm |
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Where is the hypopharynx located? |
Throat |
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Where does exchange of oxygen and carbon dioxide take place? |
Alveoli |
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Which muscles are important for normal respiration? |
1) Diaphragm 2) Intercostal 3) Pharyngeal dilator muscles |
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What best describes an SaO2 of 88%? |
Hypoxia |
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What is the normal range for PaCO3 |
35-45 |
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Where is the control center for respiration? |
Lower brain stem |
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What occurs with hypoventilation? |
Increased PCO2 |
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In the STOP-BANG screening tool for OSAs, what does the "B" Stand for? |
Body Mass Index |
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What is a pattern of recurrent central apneas alternating with a crescendo-decrescendo of tidal volume? |
Cheyne-Stokes respiration |
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What is the condition where the body can't eliminate carbon dioxide adequately? |
Hypoventilation |
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Which symptoms signal a possible sleep disorder? |
1) Being sleepy or tired during the day 2) Loud snoring, choking or gasping 3) Restless in bed 4) Involuntary movements or activity in sleep |
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Which Epworth score indicates a history of sleepiness? |
16 |
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For how long is a typical sleep diary kept? |
14 days |
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What is the normal % of stage N1 for a young adult? |
3-5% |
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What is the normal % of REM for a young adult? |
20-25% |
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What are the differences between normal sleep of a 12 year old and the normal sleep of a 65 year old? |
Decreased N3 for 65 year old |
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During which sleep stage is the arousal threshold highest? |
N3 |
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Where is the pacemaker for circadian rhythms located? |
Anterior hypothalamus (SCN) |
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Which hormone is increased during stage N3 sleep? |
Growth hormone |
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What does "post-ictal" mean? |
After a seizure |
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If a patient has a seizure while in the sleep lab, what should the tech(s) do? |
1) Note and document time of onset 2) Notify the Medical Director 3) Follow the lab's emergency protocols 4) Approach the patient with caution and assess |
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An alpha rhythm is best visualized from which EEG channel? |
Occiptal |
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An epoch is scored as Stage W if it contains: |
1) Low amplitude, mixed frequency EEG with rapid eye movements or blinking and a high chin tone 2) Alpha activity for >50% of the epoch 3) Major Body Movement and some alpha activity 4) After lights out and before lights on, with the patient disconnected from the recording |
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An epoch is score as N2 if it contains: |
1) A non-arousal K complex or a sleep, regardless of chin amplitude 2) Low amplitude, mixed frequency EEG and follows an epoch of N2, which no intervening arousal 3) Slow wave activity of less than 20% |
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Slow activity amplitude is evaluated from which EEG channel? |
Frontal |
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A transducer that responds to the difference in temperature that occurs with breathing is called a: |
Thermistor and Thermocouple |
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What may be used to represent airflow? |
1) Thermal sensors 2) Nasal Pressure sensor 3) Calibrated respiratory inductive plethysmograph (RIP) belts |
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On a diagnostic study, which sensors are recommended for identifying apneas? |
Thermal sensors |
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On a diagnostic study, which sensors are recommended for identifying hypopneas? |
Nasal pressure sensor |
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RIP or PVDF belts: |
Are recommended or acceptable methods of representing inspiratory effort |
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Oximetry and End Tidal Capnography operate on what principle? |
Light absoprtion |
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What factors can affect the quality of the oximeter signal? |
1) Probe position 2) Circulation 3) Fingernail Polish |
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What describes an Obstructive Apnea? |
At least a 90% reduction in airflow signal for at least 10 seconds, with effort throughout the apnea |
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Which of the following describes a Central Apnea? |
At least a 90% reduction in airflow signal for a least 10 seconds, with effort ABSENT for the duration of the apnea |
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A High Frequency/Low Pass Filter: |
1) Filters (attenuates) high frequency activity 2) Allows low frequency activity to pass unfiltered |
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What property of the eye makes it a dipole? |
The cornea is positive compared to the retina |
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What is the definition of (fall) Time Constant? |
Time it takes for a calibration signal to fall to 37% of the amplitude |
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What is the most critical part of a patient's chart in case of emergency? |
Physician's contact information |
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If a patient's heart rate is 110 bpm for over 30 seconds, it is described as: |
Tachycardia |
