NDT 101 - ACNS Guideline 1
16 - answer the minimum number of channels for EEG recording need to display the
areas generating most normal and abnormal EEG patterns
few - answer too ________ channels risks the possibility of missing activity of interest or
inaccurately localizing activity
UL - answer equipment should meet the _____ standards
AC - answer all equipment must be adequately grounded by a(n) ___________
receptacle
3-prong - answer equipment is grounded through the use of a _________ plug/outlet
21 - answer how many electrodes should be used according to the 10-20 systems
gold - answer silver-silver chloride and ________disk electrodes are the best electrodes
10,000 ohms - answer electrical impedances should be ________ _______ or less
impedances - answershould be checked prior to beginning the recording and again
through out the test, beginning of each montage change
impedances - answerare lowered by using an abrasive skin prepping agent prior to
applying the electrodes
needle - answerthese type of electrodes can be used in comatose patients, are useful in
STAT settings, need to use front-to-back alignment to avoid artifactual amplitude
asymmetries
grounding - answera _________ electrode should always be applied, most equipment
will not accurately record without one, there will be too much artifact
comparison, sequential - answerstandardization is important for sharing of data among
laboratories and for ____________ of _____________ EEG recording on the same
patient
reference - answerthe machine or system _____________ is an additional electrode
placed on the patient, allows for reformatting, all initial incoming data is recorded
through this and saved so that it can be manipulated later
bio-cal - answermost frequent montage for this is FP1-O2 on all channels
16 - answer the minimum number of channels for EEG recording need to display the
areas generating most normal and abnormal EEG patterns
few - answer too ________ channels risks the possibility of missing activity of interest or
inaccurately localizing activity
UL - answer equipment should meet the _____ standards
AC - answer all equipment must be adequately grounded by a(n) ___________
receptacle
3-prong - answer equipment is grounded through the use of a _________ plug/outlet
21 - answer how many electrodes should be used according to the 10-20 systems
gold - answer silver-silver chloride and ________disk electrodes are the best electrodes
10,000 ohms - answer electrical impedances should be ________ _______ or less
impedances - answershould be checked prior to beginning the recording and again
through out the test, beginning of each montage change
impedances - answerare lowered by using an abrasive skin prepping agent prior to
applying the electrodes
needle - answerthese type of electrodes can be used in comatose patients, are useful in
STAT settings, need to use front-to-back alignment to avoid artifactual amplitude
asymmetries
grounding - answera _________ electrode should always be applied, most equipment
will not accurately record without one, there will be too much artifact
comparison, sequential - answerstandardization is important for sharing of data among
laboratories and for ____________ of _____________ EEG recording on the same
patient
reference - answerthe machine or system _____________ is an additional electrode
placed on the patient, allows for reformatting, all initial incoming data is recorded
through this and saved so that it can be manipulated later
bio-cal - answermost frequent montage for this is FP1-O2 on all channels
