The ones we use at my hospital are. Never seen them any other way...
Hijacking the thread to ask whether anyone uses disposable EKG leads, and if so whether you have any sense of how the cost compares? Obviously it’s not great for the environment, but one set of leads can follow a patient for his/her entire hospitalization- no more running around looking for missing leads, stealing them from the PACU and getting yelled at (yes my system is inefficient), or finding blood from the last patient on the crevices on the clips of the leads (gross, and sadly common- they seem hard to clean well)