FREE RST Patient Setup and Instrumentation Questions and Answers

Question 1

When performing physiological calibrations prior to a polysomnogram, the technologist asks the patient to look left and then right.
Which of the following channels is being primarily evaluated with this action?

Accepted Answer

Electrooculogram (EOG)

Answer

Electroencephalogram (EEG)

Answer

Electromyogram (EMG)

Answer

Electrocardiogram (ECG)

Question 2

A sleep technologist measures a patient's head from the nasion to the inion, finding a distance of 36 cm. According to the International 10-20 system, what is the distance from the nasion to the Fz electrode placement?

Accepted Answer

7.2 cm

Answer

3.6 cm

Answer

10.8 cm

Answer

9.0 cm

Question 3

During a study, the technologist observes a persistent, rhythmic artifact in the EEG and EOG channels that corresponds with the patient's heart rate on the ECG channel. What is the most likely cause of this artifact?

Accepted Answer

Pulse artifact

Answer

Sweat artifact

Answer

50/60 Hz electrical interference

Answer

Movement artifact

Question 4

A patient arrives for their sleep study and reports having used a thick hair conditioner and styling gel after washing their hair. Which of the following is the most significant challenge the technologist might face during setup?

Accepted Answer

High and unstable electrode impedances

Answer

Difficulty placing the nasal cannula

Answer

Inaccurate pulse oximetry readings

Answer

Incorrect respiratory effort belt placement

Question 5

Which of the following is the primary purpose of performing bio-calibrations at the beginning of a polysomnography recording?

Accepted Answer

To verify that all sensors and electrodes are functioning correctly

Answer

To allow the patient to fall asleep more quickly

Answer

To ensure the automated scoring software is functioning

Answer

To document the patient's baseline vital signs

Question 6

During patient setup, the technologist places respiratory effort belts around the patient's chest and abdomen. What is the primary physiological activity these belts are designed to measure?

Accepted Answer

Paradoxical breathing

Answer

Heart rate variability

Answer

Snoring vibrations

Answer

Body temperature fluctuations

When performing physiological calibrations prior to a polysomnogram, the technologist asks the patient to look left and then right.Which of the following channels is being primarily evaluated with this action?

When performing physiological calibrations prior to a polysomnogram, the technologist asks the patient to look left and then right.
Which of the following channels is being primarily evaluated with this action?