Weather in Italy in April. April in the northern hemisphere is turning its head firmly toward summer, but that doesnât mean itâs all sunny skies. In Italy, April weather can be pretty unpredictable â remember those famous âApril showersâ from the childrensâ rhyme? â though itâs typically far sunnier than it is wet.
Arrhythmia monitoring refers to tests physicians use to identify the type and the cause of irregular heart rhythms. Many arrhythmias occur infrequently, so to record the heart's electrical activity under real-world conditions, physicians use continuous monitor recording, also called ambulatory electrocardiography.
Suspected arrhythmias sometimes may be documented by using a small, portable ECG recorder, called a Holter monitor (or continuous ambulatory electrocardiographic monitor). This can record 24 hours (and sometimes more) of continuous electrocardiographic signals. While an ECG is sort of a 12-second snapshot of the heart's electrical activity, the Holter monitor is more like a movie. As with an ECG, electrodes are taped to the chest. The wires are connected to a portable, battery-operated recorder that can run for 24 to 48 hours.