Cardioversion question

[aCRNAhopeful]

Why is it necessary to have the leads from the crash cart connected to the patient when doing a cardioversion? Since you can get a rhythm and even sync the QRS's using quick combos alone, why do you need to apply the leads? What would happen if you tried without the leads? Thanks.

[dianah, ASN]

Unit would probably work fine without attaching the ECG leads for a CV or defibrillation.

However, if transcutaneous pacing is needed, both the external pads and ECG leads (3) will be needed.

I think it's mainly a comfort factor to apply the leads as well as the defib pads during a CV. :)

I googled the one we use most (HP XL), but check the manual for your defibrillator unit, and let us know if you have difft info. :)

[StayLost, BSN, RN]

My understanding: when you start the cardioversion/pacing the rhythm falls off the screen unless the leads are in place. This is because the capicity of the pads stop reading the rhythm & begin conducting & aparently can't do both at the same time. You can defib a pt with only the pads because is delivers the shock then returns to EKG.