No realizar pruebas de laboratorio (hemograma, bioquímica y estudio de coagulación) en pacientes sin enfermedad sistémica (ASA I y II) previo a cirugías de bajo riesgo, con pérdida estimada de sangre mínima.

Guidelines for pre-operative cardiac risk assessment and perioperative cardiac Management in non-cardiac surgery. The Task Force for Preoperative Cardiac Risk Assessment and Perioperative Cardiac Management in Non-Cardiac Surgery of the European Society of Cardiology (ESC) and endorsed by the European Society of Anaesthesiology (ESA). European Heart Journal 2009; 30:2769a.

American Society of Anesthesiologists Task Force on Preanesthesia Evaluation. Practice Advisory for preanesthesia evaluation. Anesthesiology 2002;96(2):485-496.

Feely MA, Collins S, Daniels PR et al. Preoperative testing before noncardiac Surgery: Guidelines and recommendations. Am Fam Physician 2013;87(6):414-8.

López Argumedo M, Asua J. Preoperative Evaluation in elective surgery. (INAHTA Synthesis Report). Vitoria-Gasteiz. Dpto of Health Basque Government. Basque Office of Health Technology Assessment, Osteba 1999.