RST Quality Assurance and Regulatory Compliance 2

Question 1

What is the AASM-recommended low-frequency filter (high-pass filter) setting for EEG channels during polysomnography?

Accepted Answer

0.3 Hz

Answer

The AASM recommends a low-frequency filter of 0.3 Hz for EEG to preserve slow-wave activity while attenuating very low-frequency artifact.

Question 2

What does impedance checking primarily assess in the context of polysomnography quality assurance?

Accepted Answer

Resistance at the skin-electrode interface

Answer

Impedance checking measures resistance at the skin-electrode contact; high impedance indicates poor contact that degrades signal quality and increases artifact.

Question 3

According to AASM accreditation standards, what is the minimum staffing requirement during attended polysomnography to ensure patient safety?

Accepted Answer

At least one technologist must be present in the facility at all times

Answer

AASM standards require at least one technologist to be present in the facility at all times during attended studies to ensure patient safety and data quality.

Question 4

Which element is a key component of a sleep laboratory's infection control program?

Accepted Answer

Written protocols for cleaning, disinfection, and sterilization of reusable equipment

Answer

Written, systematic protocols for equipment cleaning, disinfection, and sterilization are the foundation of a compliant infection control program.

Question 5

What is the minimum recommended digital sampling rate for EEG channels in polysomnography according to AASM technical specifications?

Accepted Answer

200 Hz

Answer

The AASM specifies a minimum sampling rate of 200 Hz for EEG to adequately capture the full clinically relevant frequency range per the Nyquist theorem.

RST - Registered Sleep Technologist Practice Test

RST - Registered Sleep Technologist Practice Test

RST Quality Assurance and Regulatory Compliance 2