Ambulatory Flashcards

What is the typical recording duration for an ambulatory EEG study?

Answer: 24-72 hours

Ambulatory EEG studies typically record for 24-72 hours, allowing capture of events that may not occur during a brief routine recording, including sleep-wake cycles.

Which artifact is most commonly encountered in ambulatory EEG recordings compared to in-lab studies?

Answer: Movement and muscle artifact

Movement and muscle artifact are the most common artifacts in ambulatory EEG because patients are performing their normal daily activities, unlike the controlled laboratory environment.

What electrode application method is preferred for ambulatory EEG to ensure electrodes remain in place during extended recording?

Answer: Collodion adhesive

Collodion is the preferred adhesive for ambulatory EEG because it provides secure, long-lasting electrode fixation that withstands the physical activity of daily living during multi-day recordings.

What is the primary advantage of ambulatory EEG over inpatient video-EEG monitoring?

Answer: Recording in the patient's natural environment at lower cost

Ambulatory EEG allows recording in the patient's natural environment, capturing habitual events during normal daily activities at significantly lower cost than inpatient monitoring.

What should an ambulatory EEG patient do when experiencing a suspected seizure or event?

Answer: Press the event marker button and keep an event diary

Patients are instructed to press the event marker button on the ambulatory device and record the event details (time, symptoms, activity) in their diary, enabling correlation of clinical events with EEG data.

When reviewing ambulatory EEG data, what is the most important initial step for the technologist?

Answer: Correlate event markers with the patient's diary entries

Correlating event markers with diary entries is the most important first step, as it allows the technologist to efficiently identify and focus on clinically relevant portions of the often lengthy recording.