Where does the pullback distance refer to?

• A. Between the tip and the distal end of the RV coil
• B. Between the AT lead and the SV lead
• C. Between the generator and the RV coil
• D. Between two separate RV coils

Answer: (A)

The pullback distance is the space along the same right-ventricular defibrillator lead between the tip electrode and the distal defibrillation coil. This measurement matters because it reflects how far the coil sits from the sensing/pace tip, which helps ensure the shock vector and lead stability are appropriate during implantation and follow‑up.

Think of the other possibilities as describing different relationships that aren’t about the spacing along a single lead. The distance between atrial and ventricular leads isn’t the pullback distance, nor is the distance from the generator to the RV coil, and the separation between two separate RV coils would only apply if there were two coils on the same lead. The standard pullback distance term specifically references the tip-to-distal-coil spacing on the RV lead.