PSG TESTING 2 MIDTERM - QUESTIONS AND ANSWERS
WITH COMPLETE SOLUTION.
Polarity refers to: Answer - Upward or downward deflection of the wave
Using two ground electrodes is called Answer - Ground loop
Using two active electrodes in each EEG channel of the montage is called:
Answer - Bipolar
The ability of the amplifier to reject unwanted signals & produce cleaner
recordings is: Answer - Common Mode Rejection Ratio (CMRR)
Your LFF for EEG is set at 5 Hz. Are delta waves affected? Answer - True
Recommended setting for EMG channel is: Answer - LFF = 10 Hz; HFF = 100 Hz
A measure of electrical resistance Answer - Impedance
Measures blood oxygenation Answer - Oximeter
Measures acidity levels in the esophagus Answer - pH probe
, Snap electrodes differ from cup electrodes in that: Answer - Cup electrodes
require the use of paste
The desired sampling rate for equipment is: Answer - 500 Hz
Respiratory effort Answer - Piezo-electric belts are used to record
A capnogram measures Answer - End-tidal CO2 (ETCO2)
R=V/I is the calculation for __________; which is measured in ________
Answer - Ohm's Law ; Ohms
Currents that rapidly cycle from positive to negative voltages are: Answer - AC
When completing a pt hookup, the ground electrode is optional Answer - False
The higher the sampling rate, the better the quality of the recording Answer -
True
Example of what montage:
F3-M2
F4-M1
C3-M2
C4-M1 Answer - Referential
When describing the signal pathway, the signal recorded from the cup
electrode to the: Answer - Head box
WITH COMPLETE SOLUTION.
Polarity refers to: Answer - Upward or downward deflection of the wave
Using two ground electrodes is called Answer - Ground loop
Using two active electrodes in each EEG channel of the montage is called:
Answer - Bipolar
The ability of the amplifier to reject unwanted signals & produce cleaner
recordings is: Answer - Common Mode Rejection Ratio (CMRR)
Your LFF for EEG is set at 5 Hz. Are delta waves affected? Answer - True
Recommended setting for EMG channel is: Answer - LFF = 10 Hz; HFF = 100 Hz
A measure of electrical resistance Answer - Impedance
Measures blood oxygenation Answer - Oximeter
Measures acidity levels in the esophagus Answer - pH probe
, Snap electrodes differ from cup electrodes in that: Answer - Cup electrodes
require the use of paste
The desired sampling rate for equipment is: Answer - 500 Hz
Respiratory effort Answer - Piezo-electric belts are used to record
A capnogram measures Answer - End-tidal CO2 (ETCO2)
R=V/I is the calculation for __________; which is measured in ________
Answer - Ohm's Law ; Ohms
Currents that rapidly cycle from positive to negative voltages are: Answer - AC
When completing a pt hookup, the ground electrode is optional Answer - False
The higher the sampling rate, the better the quality of the recording Answer -
True
Example of what montage:
F3-M2
F4-M1
C3-M2
C4-M1 Answer - Referential
When describing the signal pathway, the signal recorded from the cup
electrode to the: Answer - Head box
