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The words in () are mine to help explain:
"Interrogation of the patient’s defibrillator shows that the PACEMAKER PORTION (as opposed to the leads) IS IN THE BACKUP MODE (which is) SET (for) DUAL CHAMBER WITH A BASE RATE OF 40 (the rate it should never drop below), a paced ...A-V... (should be AV) delay of 300 milliseconds with an atrial lead pulse amplitude of 2.5 volts, a pulse width of 0.5 milliseconds, and a lead impedance of 290 ohms."
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