title: Hazard report. Upside-down insertion of Zoll M series multifunction cable connector into M series defibrillator paddles could delay therapy.
abstract: Under certain conditions, the Zoll M Series defibrillator multifunction cable (MFC) connector can be inserted upside down into the defibrillator's external paddles, preventing shock delivery and potentially delaying defibrillation. Performing the manufacturer-recommended routine shift checks, including checking for damaged cables and connectors, will aid in avoiding this problem during clinical use. Clinicians should be aware that, though it is not a commonly suspected problem, upside-down MFC connector insertion is among the potential reasons for a failure-to-shock condition.
mesh_terms: D047548:Defibrillators; D004868:Equipment Failure; D006801:Humans