Postoperative fever is defined as a temperature >100°F (38°C) on 2 consecutive postoperative days, or >102.2°F (39°C) on any 1 postoperative day. The most common cause of fever within the first 48 hours is a pyretic response to surgery, which is self-limiting. Textbooks have long listed the common causes of … Continue reading Postoperative fever – Rule of W (Mnemonic)