Defibrillation is difficult if body temperature is low; one attempt at maximum energy setting for the defibrillator (200 J for biphasic and 360 J for monophasic) may be made, but if ineffective, further attempts are generally deferred until temperature reaches > 30 ° C Advanced cardiac life-support drugs (eg, antiarrhythmics, vasopressors, inotropes) are usually not given until temperature reaches > 30° C Low-dose dopamine (1 to 5 mcg / kg / min) or other catecholamine infusions are typically reserved for patients who have disproportionately severe hypotension and who do not respond to fluid resuscitation and rewarming (1).