ECG Holter Monitoring and Ambulatory ECG 2

Question 1

What is the most common clinical indication for ordering a Holter monitor?

Accepted Answer

Evaluation of unexplained syncope, palpitations, or suspected arrhythmia

Answer

Holter monitoring is most commonly ordered to evaluate intermittent symptoms such as palpitations, dizziness, or syncope that may correlate with cardiac arrhythmias not captured on a standard 12-lead ECG.

Question 2

What is the term for a Holter recording event created when the patient presses the device button during symptoms?

Accepted Answer

Patient-activated event marker

Answer

When a patient experiences symptoms and presses the event button, a patient-activated event marker is embedded in the recording, allowing direct correlation between symptoms and the ECG at that moment.

Question 3

What pause duration is generally considered clinically significant during Holter analysis?

Accepted Answer

A pause greater than 2.0 to 2.5 seconds

Answer

A cardiac pause exceeding 2.0 to 2.5 seconds is generally considered clinically significant and is flagged for physician review during Holter analysis.

Question 4

How long can a cardiac patch monitor (extended ambulatory monitor) typically record compared to a standard Holter?

Accepted Answer

Up to 14 days

Answer

Extended Holter patch monitors, such as the Zio Patch, can record continuously for up to 14 days, significantly increasing the yield for detecting infrequent or intermittent arrhythmias.

Question 5

What is the primary functional difference between a Holter monitor and a cardiac event recorder?

Accepted Answer

A Holter records continuously; an event recorder captures only symptom-triggered or auto-detected events

Answer

Holter monitors record the ECG continuously over the entire monitoring period, while cardiac event recorders only capture specific events triggered manually by the patient or automatically by arrhythmia detection algorithms.

ECG Certification Practice Test

ECG Certification Practice Test

ECG Holter Monitoring and Ambulatory ECG 2