RPSGT Data Analysis & Reporting 5

Question 1

Which AASM-recommended derivation is used as the primary airflow channel for scoring apneas?

Accepted Answer

Oronasal thermal sensor

Answer

The oronasal thermal sensor is the recommended channel for identifying apneas (complete cessation of airflow), while nasal pressure is used for hypopneas.

Question 2

A final PSG report shows sleep onset latency of 45 minutes. How should this be interpreted?

Accepted Answer

Mildly prolonged

Answer

Normal sleep onset latency is ≤20 minutes; 45 minutes is mildly to moderately prolonged but not at the severely delayed threshold.

Question 3

When reporting CPAP titration results, the optimal pressure is the level that eliminates:

Accepted Answer

Obstructive apneas, hypopneas, RERAs, and snoring in all sleep stages and positions

Answer

Optimal CPAP pressure abolishes obstructive apneas, hypopneas, RERAs, and snoring across all sleep stages and body positions.

Question 4

A movement artifact on the EEG that is most likely caused by the patient's heartbeat is called:

Accepted Answer

Ballistocardiogram artifact

Answer

Ballistocardiogram artifact appears as rhythmic EEG deflections synchronized with the cardiac cycle caused by movement of electrode leads with each heartbeat.

Question 5

According to AASM rules, a central apnea must have absent respiratory effort and last at least:

Accepted Answer

10 seconds

Answer

A central apnea requires cessation of airflow for ≥10 seconds with no associated respiratory effort throughout the event.

RPSGT Exam Practice Test

RPSGT Exam Practice Test

RPSGT Data Analysis & Reporting 5