Cardiology Teaching Package
A Beginners Guide to Normal Heart Function, Sinus Rhythm & Common Cardiac Arrhythmias
5 Lead & 12 Lead Placements
If, by some chance you are asked to put somebody onto a cardiac monitor but you cannot remember lead placement, most modern machines have an anatomical drawing on the block that the wires are connected to, as shown below.
5-lead placement
Image: 5 lead connection box diagram
![5 lead connection box diagram](../images/5_lead_diagram.jpg)
12-lead placement
Image: 12 lead connection box diagram
![12 lead connection box diagram](../images/12_lead_diagram.jpg)
Even for experienced CCU nurses, it is reassuring to know that this diagram is there when things get hectic and confusing, just the time for mistakes to occur.