Pre-op

Medical abbreviation · Surgical

Pre-op
Stands forPreoperative
CategoriesMedical

Pre-op stands for Preoperative, a surgical abbreviation.

Refers to the period before surgery and everything done in it: evaluation, testing, medication instructions, fasting, consent and the holding area where patients are prepared on the day of surgery. Clinicians also use it as a verb ("pre-op the patient") and a noun ("the pre-op").

Example: Pre-op instructions: stop clopidogrel 5 days before and eat nothing after midnight.

Usage notes

Also written preop. Routine testing before low-risk surgery in healthy patients, such as chest X-rays, ECGs and blood counts, is discouraged by Choosing Wisely recommendations because it rarely changes management. Medication planning, especially for anticoagulants, GLP-1 receptor agonists, SGLT2 inhibitors and insulin, is a major focus of pre-op visits.

More surgical abbreviations

  • NSQIP – National Surgical Quality Improvement Program
  • PAT – Preadmission testing
  • PE – Pressure equalization (tubes)
  • Phaco – Phacoemulsification
  • POD – Postoperative day
  • Post-op – Postoperative
  • PRK – Photorefractive keratectomy
  • RCR – Rotator cuff repair
  • SLNB – Sentinel lymph node biopsy
  • STSG – Split-thickness skin graft
  • T&A – Tonsillectomy and adenoidectomy
  • TAPP – Transabdominal preperitoneal (hernia repair)

See all 51 surgical abbreviations →

This entry is for general education and is not medical advice. Abbreviation use varies between institutions; always confirm in context.