Certified Polysomnographic Technician Certification Certified Polysomnographic Technician Certification Sleep Scoring & Staging 2

Question 1

What does an Apnea-Hypopnea Index (AHI) of 15–30 events per hour classify as?

Accepted Answer

Moderate OSA

Answer

Mild OSA

Answer

Severe OSA

Answer

Normal sleep

Question 2

Which EEG electrode placement corresponds to the left central region per the 10-20 system?

Accepted Answer

C3

Answer

C4

Answer

Cz

Answer

F3

Question 3

A leg movement scored during PSG must last at least how long to be counted?

Accepted Answer

0.5 seconds

Answer

0.1 seconds

Answer

1 second

Answer

2 seconds

Question 4

What is the AASM recommended minimum sampling rate for EEG channels in a digital PSG system?

Accepted Answer

256 Hz

Answer

128 Hz

Answer

200 Hz

Answer

512 Hz

Question 5

During NREM sleep, which waveform appears as a high-amplitude biphasic waveform and can occur spontaneously or in response to stimuli?

Accepted Answer

K-complex

Answer

Sleep spindle

Answer

Vertex sharp wave

Answer

POSTS

Question 6

Which parameter is used to calculate the Respiratory Disturbance Index (RDI)?

Accepted Answer

Apneas + hypopneas + RERAs

Answer

Apneas + hypopneas only

Answer

Hypopneas + oxygen desaturations

Answer

Apneas + leg movements