TESTING EXAM 2 VERSIONS WITH ACTUAL QUESTIONS AND
DETAILED ANSWERS WITH A STUDY GUIDE / EXPERT VERIFIED FOR
GURANTEED PASS / LATEST UPDATE.
1. The primary purpose of a "test dose" during Long-Term Monitoring is to:
A) Calibrate the video camera.
B) Check for amplifier drift.
C) Assess patient sensitivity and provoke potential seizures.
D) Confirm the integrity of every electrode and connection at the start of a recording.
ANSWER: D - A test dose (or biocalibration) involves having the patient perform
maneuvers like eye blinks, clenching jaw, and hyperventilation to ensure all electrodes
are functioning correctly and to create a baseline of the patient's normal brain activity and
common artifacts.
2. A patient in the EMU has a clinical event where they stare blankly, are unresponsive for
15 seconds, and have automatisms of lip-smacking. The EEG during this event shows a 4
Hz spike-and-wave discharge over the left temporal region. This is best classified as:
A) Generalized Tonic-Clonic Seizure
B) Focal Impaired Awareness Seizure (Temporal Lobe Onset)
C) Absence Seizure
D) Psychogenic Non-Epileptic Seizure (PNES)
ANSWER: B - The clinical description (staring, unresponsiveness, automatisms) and
the EEG finding of a focal discharge in the left temporal region are classic for a Focal
Impaired Awareness Seizure, formerly known as a complex partial seizure.
3. Which of the following impedance values is MOST desirable for scalp electrodes in a
routine LTM recording?
A) 1 kΩ
B) 25 kΩ
C) 5 kΩ
D) 50 kΩ
, ANSWER: C - Impedance should be kept below 5 kΩ (5,000 ohms) for optimal signal
quality and to minimize noise. Values that are too high (>10 kΩ) increase artifact
susceptibility, while values that are too low (<1 kΩ) may indicate a short circuit.
4. During review, you see a channel that shows a very brief, high-voltage, negative
deflection that is sharply contoured and stands out from the background. It has no
aftercoming slow wave. This is most accurately described as a:
A) Spike
B) Sharp Wave
C) Polyspike
D) Artifact
ANSWER: B - A sharp wave is defined as a transient, clearly distinguished from
background activity, with a pointed peak and duration of 70-200 milliseconds. A spike
has a shorter duration (20-70 ms). The lack of an aftercoming slow wave helps
distinguish it from a spike-and-wave complex.
5. The most critical action for a technologist to take when a patient in the EMU has a
generalized tonic-clonic seizure is:
A) Immediately adjust the filter settings to get a cleaner recording.
B) Press the event button and provide detailed clinical observation for the record.
C) Rush to restrain the patient to prevent injury.
D) Turn up the video camera light for a better view.
ANSWER: B - While patient safety is paramount (e.g., ensuring they don't fall out of
bed), the primary role of the technologist is to ensure the event is captured and
documented. Pressing the event marker and providing a clear, concise clinical description
(e.g., "whole-body stiffening followed by rhythmic jerking") is crucial for later physician
review. Restraining a patient during a seizure can cause injury.
6. In LTM, the High-Frequency Filter (HFF) should always be set to 70 Hz to preserve
spike activity.
ANSWER: False - While a typical HFF setting is 70 Hz, it can be adjusted. Lowering it
to 15 Hz can help eliminate muscle (EMG) artifact, which can sometimes obscure or be
mistaken for epileptiform activity.