Module 3 study guide

What are the four common activations we use?

Hyperventilation, photic stimulation, sleep, and sleep deprivation

What is the lesser activation category called?

Evoked

What activations has no contraindications?

Sleep

Which is NOT a contraindication of photic stimulation (PS)?

Doesn’t want to do the test

What are the 6 contraindications of hyperventilations?

1. Severe asthma

2. Recent cardiac illness

3. Moyamoya

4. Recent stroke

5. Sickle cell traits

6. ICU

(Answer varies)

What frequency do we use for PS?

1-21 Hz (odd)

How far away should the photic light be away from patient eyes?

30 cm (12 inches)

True or false: A tech will still proceed with hyperventilation when the patient is under evaluation for a brain injury?

False

What side effects are associated with hyperventilation?

Numbness and tingling in hands and feet and tiredness

What side effects are associated with photic stimulation?

Seeing shapes and colors, or getting nervous

What do we look for in photic stimulation

Photomyogenic, photo convulsive, photic driving,

Decrease in carbon dioxide levels in the blood results in cerebral constriction of cerebral arteries; this is known as?

Build up

After hyperventilation we have the patient rest for 3 minutes due to?

To see any late showing abnormalities

What is photoconvulsive?

Time locked diffuse epileptiform discharges (body jerking)

Where would we see photoconvulsive discharges?

Time locked diffused

Where would we see photic driving?

Occipital

What is photomyogenic?

Frontal muscle around the. Eye, forehead jerk with flashing lights

Time locked

Matching frequency with environmental source

Harmonic

Integer multiple

Subharmonic

Integers dividend

What will have an effect of the EEG with background slowing?

Hypoglycemia

What is the most common and effective activation procedure?

Sleep deprivation

Sleep deprivation causes what effect to the body and brain?

Stress

About how long does each activation test last?

3 minutes

How long does the photic take to flash and turn off?

10 seconds

Generalized epileptiform activity and discharges that are independent of the stimulus or are not time locked and outlast the stimulus are what term?

Abnormal

Photo proximal response patterns that are activated by IPS (intermittent photic stimulation) associated with 3 types of generalized seizure activity

Myoclonic, generalized tonic clonic, absence

What is the Neuroworkbench password?

Eeg$00A

What is the last thing we do before we leave the room after a hookup?

Turn off screen

What are the three words we use to describe effort after HV?

Great, good, poor

What are the 4 alert and oriented questions we ask the patient

Name, date, location, and POTUS (thinking)

When do we ask the AOx4 questions?

After reactivity test or before activations

List three reactivity tests

Eyes close/eyes open

Noxious stimulation

Babinski

Loud clapping

Why do we do an integrity check?

To verify correct placement

List 3 reasons we write a note?

MRI leads

Skin breakdown

Adjust/fix electrodes

Contact with patient

What is the first thing we do before entering the patient’s room?

Knock

Where do you find your EEG exam number (P26-000)?

Turn around time (TAT)

Write the order for INTEGRITY RIGHT

FP2 → F8 → T4 → T6 → O2 → P4 → C4 → F4

Write the order for INTEGRITY MIDLINE

Pz → Cz → Fz

Write the order for INTEGRITY LEFT

FP1 → F7 → T3 → T5 → O1 → P3 → C3 → F3

How many times do we do reactivity test with the eyes?

2

Where do we find Turn Around Time for the pediatric EMU?

In OneDrive

What color electrode is C3?

Orange

What information do we need to put on the Tech Sheet that’s not labeled

Jackbox number and portable number

About how long should the wire sheath be?

6 feet

Sailboat like waves forms produced from POSTs are called>

Lambda waves

Generalized 3 hz Delta spike and wave discharges lasting 10-15 seconds are known as

Absence

What is fender’s favorite seizure?

Absence seizure