(Verified Answers)
1. enhanced artifact: The failure to remove electrode paste residue will MOST
likely result in:
a. discarded electrodes.
b. enhanced artifact.
c. improved detergent selection.
d. improvement in adherence.
2. Initiate emergency response system: The most appropriate action a technol-
ogist would take when there is confirmed ventricular tachycardia lasting greater that 30
seconds is:
a. Initiate emergency response system
b. Assess, document and continue to monitor
c. No immediate response is needed
d. Discontinue recording and transport to emergency room
3. Do not use the equipment until the leakage current is lowered.: The
polysomnograph has a leakage current of 200uA. What should the technician doabout
this?
a. Plug the equipment into an ungrounded plug to avoid a ground loop.
b. Do not use the equipment until the leakage current is lowered.
c. Continue to record since this leakage current is within acceptable limits.
,d. Use an extra grounding electrode on the patients
4. sweat: Which of the following conditions are most likely to cause slow wave
artifact in the EEG and EOG channels?
a .Muscle tension
b. Sweat
c. Incorrect placement of the reference electrodes
d. A and C are correct
5. c3: The electrode located 30% above the left pre-auricular crease is:C3
P3
01
F3
6. hypoventilation: CO2 monitoring, using either end-tidal or transcutaneous sen-sors,
is mandatory in children for the scoring of:
A.
Apnea
B.
Hypopnea
,C.
Central events
D.
Hypoventilation
7. capnography: What additional parameter would be MOST helpful to monitor
when recording a patient with COPD?
a. intercostal EMG
b. piezo technology
c. esophageal pressure
d. capnography
8. DC: Which of these channel types produces a square calibration wave?EEG
EMG
Respiratory
DC
9. unacceptable leak value: The most common reason for changing the PAP
interface during titration is:
a. Sustained desaturations
b. Low sleep efficiency
c. Treatment emergent central apneas
d. Unacceptable leak value
10. 3.2 cm: The measured distance from the nasion to the inion is 32cm. What isthe
distance from the inion to Oz?
1.6cm
3.2cm
, 6.4cm
16cm
11. high and unequal electrode impedances: Which of the following factors is
most likely to cause 60Hz artifact?
a : High and unequal electrode impedance
b. Incorrect low and high frequency filter settings.
c. Incorrect placement of the reference electrodes
d. Direct pressure against one of the electrode
12. 5.8cm: The circumferential measurements is 58cm. What is the distance be-tween
O1 & O2?
2.4 cm
5.8 cm