A 24-hour event monitor is commonly known as
a. a Holter monitor. c. an external loop recorder.
b. a transtelephonic monitor. d. a signal-averaged electrocardiogram.
A
Holter monitors are the most widely used continuous recording systems. The monitor is carried by a shoulder strap or clipped to a belt or pocket for 24 hours and then is returned to the hospital or clinic for reading. Transtelephonic monitors are intermittent monitoring systems that are not attached to the patient all the time. These monitors consist of a small box, about 4 inches by 2 inches, with four metal electrodes on the bottom. The box is issued to the patient for a specific time, often 1 month, and the patient carries the box at all times. The external loop recorder records continuously but only keeps the most recent 4 minutes of electrocardiographic (ECG) activity on the memory loop. The memory loop in the device means the patient can press a button and intermittently record a specific event such as heart palpitations during or after the event has occurred. The signal-averaged ECG (SAECG) is used to identify late potentials within the QRS complex. These low-amplitude waveforms cannot be detected on a standard surface ECG but can be recorded as an SAECG.
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True False