ABRET R.EEG.T. Cheat Sheet

Cheat sheet ABRET R.EEG.T. Cheat Sheet Practice Questions Study Guide Print / Save PDF

Pre-Study 15% of exam History 10-20 Safety Impedance Setup Picker

Perform EEG Study 46% of exam Montages Filters Activation Artifacts Artifact Picker

Post-Study 19% of exam Waveforms Sleep Localization Analysis Picker Normal vs Variant

Ethics + Professional 20% of exam Documentation Critical Events HIPAA Scope Ethics Picker

Quick Facts Exam R.EEG.T. Owner ABRET Time 4 hours Format Multiple choice Vendor Prometric Credential 5 years Record minimum 20 minutes Pass Criterion cut score

10-20 Sides PR Odd left, even right, Z midline. Odd = left Even = right Z = midline

Setup Picker PR Need center mark → Cz ( Two midlines ) Need hemisphere → Odd/even ( Left/right ) Impedance low → Check bridge ( Possible short ) Impedance unbalanced → Reprep skin ( Reduce noise ) Allergy risk → Alternate supplies ( Document sensitivity ) Contraindication present → Skip activation ( Document reason )

History PR Patient ID Two identifiers Reason Clinical indication Medications Sedating or activating Last seizure Event timing Sleep loss Activation context Last meal Physiologic context Prior EEG Comparison data Contraindications Activation safety

10-20 PR Nasion Anterior landmark Inion Posterior landmark Preauricular Lateral landmarks Cz Midline intersection Odd numbers Left hemisphere Even numbers Right hemisphere Z Midline electrode T3/T4 T7/T8 legacy

Electrodes + Impedance PR Ag/AgCl Low-noise electrode Gold disk Routine option Needles Avoid routine Ground Isolated safety System reference Manufacturer placement Impedance Check prerecording Balanced Noise rejection Under 100 ohms Possible short

Safety PR CPR/BLS Eligibility requirement Infection control Disinfect electrodes Allergies Collodion sensitivity Electrical safety No earth ground Consent Risky procedures HIPAA Protect information SDS/OSHA Chemical safety Patient rights Dignity first

Filter Guard ST Low hides delta; high hides spikes. LFF protects slow HFF protects fast Notch last

Referential vs Bipolar ST

Referential Common reference Amplitude comparison

Bipolar Adjacent electrodes Phase reversal Reference compares; bipolar localizes

Recording Picker ST Localize spike → Bipolar montage ( Phase reversal ) Compare amplitudes → Referential montage ( Common reference ) Need standard view → Longitudinal bipolar ( Chain review ) Suspect temporal focus → Extra electrodes ( Better sampling ) Electrical noise → Fix source ( Before notch ) Slow artifact → Annotate filters ( Avoid overfiltering )

Montages ST Referential Common reference Bipolar Adjacent pairs Longitudinal Anterior-posterior chains Transverse Left-right chains Average reference Calculated reference Laplacian Local source emphasis Phase reversal Field maximum Reformatting Digital advantage

Artifact Proof ST Eyes, muscle, heart, electrode, power. Eyes EMG ECG Lead 60 Hz

LFF vs HFF ST

LFF Controls slow activity Preserve delta

HFF Controls fast activity Preserve spikes Filters can erase pathology

Artifact Picker ST Frontal slow waves → Check eyes ( Blink/movement ) Fast muscle bursts → Relax jaw ( EMG ) Regular heart timing → ECG channel ( Cardiac artifact ) Abrupt single lead → Check electrode ( Pop ) Exact 60 Hz → Check power ( Mains noise ) Slow baseline drift → Cool patient ( Sweat )

Filters + Sensitivity ST Sensitivity 5-10 uV/mm Initial gain 7 uV/mm LFF No higher than 1 Hz Time constant At least 0.16 sec HFF At least 70 Hz Notch Last resort Calibration Before recording Epoch display 10-20 sec/page

Photic vs HV ST

Photic Photosensitivity screen Before HV

HV Absence activation Three minutes Check contraindications first

Activation ST Eyes open Alpha attenuation Eyes closed Alpha emergence Photic Photosensitivity screen Lamp distance At least 30 cm Dim room Photic condition HV Overbreathing activation HV duration Minimum 3 minutes Post-HV Record 1 minute

Artifact vs Cerebral ST

Artifact Matches source Fixable pattern

Cerebral Physiologic field Clinical correlation Prove source before labeling

Artifacts ST Eye blink Frontal slow deflection Eye movement Opposing frontal fields EMG Fast irregular activity ECG Cardiac timing Pulse Electrode movement Sweat Slow baseline drift Electrode pop Abrupt single lead 60 Hz Electrical interference

Events + Troubleshooting ST Clinical event Annotate immediately Technologist note Observed behavior Video Artifact/event context ECG channel Pulse/spike check Loose lead Check impedance All-channel noise Ground or power One-channel noise Electrode problem Coma stimuli Document responses

N2 Markers PO Spindles and K complexes mark N2. Spindle K complex N2 sleep

Spike vs Sharp PO

Spike 20-70 msec Sharper transient

Sharp wave 70-200 msec Longer transient Duration decides name

Analysis Picker PO Adult eyes closed → PDR ( 8-13 Hz ) Central arch rhythm → Mu ( Blocks movement ) N2 sleep marker → Spindle/K ( Stage sleep ) Sharp transient → Measure duration ( Spike vs sharp ) Bipolar reversal → Find maximum ( Localize field ) Clinical event → Correlate video ( EEG change )

Waveforms PO Delta Under 4 Hz Theta 4-7 Hz Alpha 8-13 Hz Beta Over 13 Hz PDR Posterior alpha rhythm Mu Central arch rhythm Spike 20-70 msec Sharp wave 70-200 msec

Alpha vs Mu PO

Alpha Posterior dominant Blocks eye opening

Mu Central arch Blocks movement Location plus blocker

Sleep PO Drowsiness Alpha dropout Vertex wave N1 marker Spindle N2 marker K complex N2 marker Slow wave N3 marker REM Low-voltage mixed Sleep deprivation Spike yield Seizure history Sleep useful

Localization PO Frequency Cycles per second Voltage Amplitude measure Duration Wave interval Polarity Negative or positive Field Spatial distribution Maximum Largest voltage Phase reversal Bipolar localization Clinical correlation History plus EEG

Scope Line ET Record facts; physicians diagnose. Annotate Notify Do not diagnose

Document vs Interpret ET

Document Observed facts Technologist duty

Interpret Clinical diagnosis Physician duty Stay inside scope

Ethics Picker ET Seizure occurs → Notify physician ( Critical result ) Patient data → Protect privacy ( HIPAA ) Asked diagnosis → Defer interpretation ( Scope limit ) Unexpected event → Document facts ( No guessing ) Testing issue → Report truthfully ( ABRET ethics ) Unsafe situation → Prioritize patient ( Dignity/safety )

Reports + Ethics ET Documentation Clear permanent record Consciousness State changes noted Commands Mark on record Critical result Notify physician Interpretation Physician responsibility Confidentiality Patient information protected Code ethics ABRET conduct IP rights Respect ABRET materials

Common Traps

Estimated Placement Measured 10-20 ≠ Estimated electrode map

Notch Filter Fix interference first ≠ Mask with notch first

Low Impedance Possible short ≠ Always excellent contact

Phase Reversal Voltage maximum ≠ Artifact proof

Hyperventilation Contraindications matter ≠ Routine for everyone

Alpha Rhythm Posterior eyes closed ≠ Central movement rhythm

Scope Describe observations ≠ Provide diagnosis

Last Minute 1 . 2026 weights: 15/46/19/20 2 . Routine EEG: 20 minutes minimum 3 . Cz = two midlines intersect 4 . Odd left; even right 5 . Impedances balanced, not bridged 6 . LFF <= 1 Hz 7 . HFF >= 70 Hz 8 . Notch only after troubleshooting 9 . HV minimum 3 minutes 10 . Photic before HV 11 . Bipolar shows phase reversal 12 . Document; do not diagnose

ABRET R.EEG.T Registered EEG Technologist Practice Questions 100 questions Study Guide 23 topics Cheat Sheet 104 facts Flashcards 50 cards Videos 1 video Blogs 1 blog Free CE Podcast

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