Holter monitor Holter
A small device worn continuously for 24 hours or longer, recording the heart during ordinary daily life.
What it can show
Intermittent rhythm problems that a clinic recording would miss.
What it cannot show
If no episode occurs while wearing it, nothing is captured — a normal result does not mean nothing is wrong.
This is the half people skip. A normal result answers one question, not every question.
Tell the staff before you start
Adhesive allergy · broken skin on the chest.
Also bring the full list of every medicine and supplement you take. Things bought without a prescription belong on that list too.