RT Book, Section A1 Freeman, Brian S. A1 Berger, Jeffrey S. SR Print(0) ID 1206859532 T1 Acute Pain Pathophysiology T2 Anesthesiology Core Review: Part Two ADVANCED Exam, 2nd Edition YR 2024 FD 2024 PB McGraw Hill PP New York, NY SN 9781264285730 LK accessanesthesiology.mhmedical.com/content.aspx?aid=1206859532 RD 2024/10/08 AB Acute pain is defined as pain that is caused by noxious stimulation due to injury, a disease process, or the abnormal function of muscle or viscera. Nociceptive pain, which entails four physiological processes (transduction, transmission, modulation, and perception), is usually implicated in acute pain. Posttraumatic, postoperative, obstetric pain, and acute medical illnesses, such as myocardial infarction, pancreatitis, and nephrolithiasis are various forms of nociceptive pain. Acute pain is typically self-limited, but when it persists beyond the usual course of an acute disease or after a reasonable time of healing (1–6 months), it is classified as chronic pain.