While speaking with doctors about EKG machines, I have found that doctors have many misconceptions not about reading EKGs, but about the EKG machines themselves. One of the main misconceptions involves EKG paper. For example, I hear many times a day that “I have an old Burdick EKG machine so I will buy a new Burdick so that my cases of paper will be utilized.”
Rarer, older Burdick EKG machines will not fit newer machines. EKG machines know to move the paper forward through a black mark or a hole in the EKG paper called a Q mark. These marks come in various sizes and are found in different places on the paper. I know this is more info than you ever wanted on EKG paper.