Philips HeartStart MRx Monitor/Defibrillators Model numbers M3535A, M3536A, and M3536M - Product Usage: is for use for the termination of ventricular tachycardia and ventricular fibrillation.
HeartStart XL MonitorlDefibrillators may not have been included in prior field actions and received required corrections
Worldwide distribution - US Nationwide distribution and the countries of China, Republic of Korea, Netherlands, Norway, United Kingdom.
https://www.accessdata.fda.gov/scripts/ires/index.cfm?Product=Z-2157-2020