AASM Sleep Exam 1 Questions and Answers
2024/25 Update
1. Following the RECOMMENDED guidelines, which of the following would be an appropriate
time to end an MWT?
A) No sleep at 20 minutes of recording
B) 20 minutes even if sleep occurs earlier
C) A single epoch of N1
D) 3 consecutive epochs of stage N1
Answer: A) No sleep at 20 minutes of recording
2. Choose the matching definition: Generalized tonic-clonic seizures
A) In the preauricular behind the ear
B) Continuous positive airway pressure mask
C) 3 consecutive epochs of stage N1
D) Generalized seizure activity with loss of consciousness and muscle contractions
Answer: D) Generalized seizure activity with loss of consciousness and muscle contractions
3. Which of these electrode sites is not typically used in a baseline montage?
A) Leg EMG
B) E2
C) Arm EMG
D) Thoracic belt
Answer: B) E2
4. Which impedance level is considered acceptable for EMG channels, such as limbs or chin?
A) Greater than 15kΩ
B) Less than or equal to 10kΩ
C) Less than or equal to 5kΩ
D) Less than or equal to 25kΩ
Answer: B) Less than or equal to 10kΩ
5. During stage N2 sleep, the patient changes position and the tech notes increased snoring and an
increasing leak. The tech should:
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A) Increasing CPAP
B) Reposition and adjust PAP interface
C) Decrease pressure release ventilation
D) Increase heated humidification
Answer: B) Reposition and adjust PAP interface
6. The most common reason for changing the PAP interface during titration is:
A) Sustained desaturations
B) Low sleep efficiency
C) Treatment emergent central apneas
D) Unacceptable leak value
Answer: D) Unacceptable leak value
7. Using the 10-20 placement system, the C4 lead is located what percentage of the circumference
away from the C3 lead?
A) 20%
B) 30%
C) 40%
D) 50%
Answer: B) 30%
8. The first step in artifact isolation is:
A) Correcting the problem by changing channel derivations
B) Changing recorder time base to count signal frequency
C) Identifying the source of the data responsible for that artifact
D) Determining if common signals exist in multiple channels
Answer: C) Identifying the source of the data responsible for that artifact
9. Which of the following factors is most likely to cause 60Hz artifact?
A) High and unequal electrode impedance
B) Incorrect low and high-frequency filter settings
C) Incorrect placement of the reference electrodes
D) Direct pressure against one of the electrodes
Answer: A) High and unequal electrode impedance
10. The tech performs physiologic calibrations in order to:
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,For more info email me @ paulwesley692@gmail..com
A) Assess the function of the computer keyboard
B) Assess the function of the electrical bed
C) Verify electrode response commands
D) Verify the polarity of the electrocardiogram (ECG)
Answer: C) Verify electrode response commands
11. The electrode located 30% above the left pre-auricular crease is:
A) C3
B) P3
C) O1
D) F3
Answer: A) C3
12. The emergence of central respiratory events during PAP titration for treatment of obstructive
sleep apnea is:
A) Mixed sleep apnea
B) Hypoventilation syndrome
C) Complex sleep apnea
D) Cheyne-Stokes breathing
Answer: C) Complex sleep apnea
13. In which study does a patient try to stay awake in a darkened room?
A) MSLT
B) MWT
C) NPSG
D) REM behavior disorder study
Answer: B) MWT
14. How to calculate the percentage of wake time?
A) Clonazopam/diazepam Anxiety, Insomnia, and Seizures
B) Total PLMS / Minutes of Sleep X 60
C) Minutes of Wake / Total Sleep Time x 100
D) Lff = 10Hz Hff = 100Hz
Answer: C) Minutes of Wake / Total Sleep Time x 100
15. The tech should log which patient info into the computer before the study?
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, For more info email me @ paulwesley692@gmail..com
A) Medical history
B) Time of last nicotine intake
C) Study identification number
D) Time of arrival
Answer: C) Study identification number
16. In normal sleep architecture, stage 2 sleep makes up:
A) 5-10% of total sleep time
B) 25-30% of total sleep time
C) 40-50% of total sleep time
D) 50-60% of total sleep time
Answer: B) 25-30% of total sleep time
17. The syndrome characterized by prolonged episodes of severe hypoxemia and associated PaCO2
elevation that worsens during sleep is:
A) Gastroesophageal reflux
B) Pulmonary hypertension
C) Obesity hypoventilation
D) Upper airway resistance
Answer: C) Obesity hypoventilation
18. The two inferior chin electrodes are placed on the:
A) Submentalis
B) Mental foramen
C) Mastoid
D) Orbicularis oris
Answer: A) Submentalis
19. Twitching movements of the fingers, toes, and mouth that may occur during stage W, non-
REM, and REM sleep are known as:
A) Bruxism
B) Excessive fragmentary myoclonus (EFM)
C) REM sleep behavior disorder (RBD)
D) Rhythmic movement disorder (RMD)
Answer: B) Excessive fragmentary myoclonus (EFM)
20. What is the recommended start pressure for pediatric and adult CPAP titration?
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