<prompt> Which one of the follwing is the ECG hallmark of hypothermia-Prominent U waveInveed T waveBizarre QRS waveOsborne J wave  <response>: ECG Changes in Hypothermia Hypothermia may produce the following ECG abnormalities: Bradyarrhythmias see below Osborne Waves J waves Prolonged PR, QRS and QT intervals Shivering aefact Ventricular ectopic Cardiac arrest due to VT, VF or asystole Ref Harrison 20th edition pg 1445 