AASM Sleep Tech Exam Practice Questions and Correct Answers

AASM Sleep Tech Exam Practice Questions
and Correct Answers
Question 1
All of the following are indications that a patient is entering stage N1 sleep from the
wake stage EXPECT:
1. The eyes mirror the EEG frequencies
2. Alpha frequencies in occipital channels have reduced or stopped entirely
3. There is a reduction in chin EMG amplitude
4. the eyes roll gently
Correct Answer
The eyes mirror the EEG frequencies



Question 2
Which of the following is the MOST LIKELY effect of zolpidem and zaleplon on sleep
architecture?
1. No observed changes
2. Increased sleep latency
3. Decreased stage R
4. Increased sleep efficiency
Correct Answer
Increased sleep efficiency



Question 3
When a patient states they feel like they are suffocating and cannot get enough air
when on CPAP, they are most likely complaining of:
1. Symptoms from low humidity
2. Air hunger
3. Excessive pressure
4. Low oxygenation
Correct Answer
Air hunger




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,Question 4
What is the minimum recording time for a study?
1. 2 hours
2. 4 hours
3. 6 hours
4. 8 hours
Correct Answer
6 hours



Question 5
The ability of an amplifier to cancel external interference that is common to both
input signals is called:
1. High frequency filter
2. Sampling rate
3. System referencing
4. Common mode rejection
Correct Answer
Common mode rejection



Question 6
Reasons to alert the physician of an immediate need to review a patient's study
include all of the following EXCEPT:
1. The apnea-hypopnea index is more than 80, but there is insufficient time to
perform a CPAP titration
2. The patient has a history of hypertension, diabetes, and congestive heart failure
3. Severe desaturations and cardiac arrhythmias are associated with the apneic events
4. There is a periodic leg movement index of over 40
Correct Answer
There is a periodic leg movement index of over 40




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,Question 7
When a patient complains of claustrophobia, is unable to tolerate PAP and request to
end PSG, the next BEST step is to:
1. Schedule dessensitization
2. Schedule re-titration study
3. Start APAP therapy
4. Refer to ENT for consultation
Correct Answer
Schedule dessensitization



Question 8
True statements about the process of biocalibrations include all of the following
EXCEPT:
1. The tech notes should reflect the movements made by the patient
2. The patient should be supine and still throughout biocalibrations
3. Biocalibrations are done at the beginning of the study only
4. Nasal and oral breathing are done on the NPSGs only
Correct Answer
Biocalibrations are done at the beginning of the study only



Question 9
What is the RECOMMONEDED LFF/HFF for the EOG and EEG channels?
1. LFF 1 / HFF 15
2. LFF 0.5 / HFF 25
3. LFF 0.3 / HFF 35
4. LFF 1 / HFF 35

Correct Answer
LFF 0.3 / HFF 35




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, Question 10
During a CPAP titration at 15cmH2O, the patient is restless and continues to have
frequent obstructive respiratory events. The BEST action is to:
1. Change to bilevel
2. Increase humidity
3. Add a backup rate
4. Initiate PAP ramp
Correct Answer
Change to bilevel



Question 11
What is the primary difference between thermistors and thermocouples?
1. Thermocouples generate their own electricity while thermistors do not
2. Thermistors measure room temperate while thermocouples measure airflow
3. Thermistors generate their own electricity and thermocouples do not
4. Thermistors use two dissimilar metals
Correct Answer
Thermocouples generate their own electricity while thermistors do not



Question 12
Which of the following is NOT true of EEG during stage 2 non-REM sleep?
1. There are periods between K complexes or sleep spindles of less than 3 minutes
that are unrelated to arousals
2. Delta activity is less than 20% of the epoch
3. Abrupt K complex clusters and delta waves may indicate arousals
4. Activity is high voltage

Correct Answer
Activity is high voltage




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