Usefulness of routine preoperative testing: a prospective single-observer study.

Study Objective: The purpose of this study is to determine whether routine preoperative testing has a usefulness not previously recognized in a small preliminary study to decide if such a hypothesis might be worthy of testing in a larger study.

Design: Single-observer, prospective, observational study.

Setting: Tertiary-care referral center in South India that performs 11 preoperative tests on each patient.