Bummer your cheif resident doesn't believe in evidence based medicine:It is a myth that surgery residents learn from old texts and old school attendings. It has been published in multiple journals in multiple fields that analgesia may affect the PE, but in NO WAY causes any change in management.
From
JAMA: Do Opiates Affect the Clinical Evaluation of Patients With Acute Abdominal Pain? Sumant R. Ranji, L. Elizabeth Goldman, David L. Simel, and Kaveh G. Shojania JAMA. 2006;296:1764-1774. "Opiate administration may alter the physical examination findings, but these changes result in no significant increase in management errors"
From
Journal of American College of Surgeons: "...Results: There were no differences between control and MS groups with respect to changes in physical or diagnostic accuracy...." - Journal of the American College of Surgeons Volume 196, Issue 1, January 2003, Pages 18-31
From
Society of Acedemic Emergency Medicine: Academic Emergency Medicine, Vol 3, 1086-1092 ...."CONCLUSIONS: When compared with saline placebo, the administration of MS to patients with acute abdominal pain effectively relieved pain and did not alter the ability of physicians to accurately evaluate and treat patients"
From
European Journal of Emergency Medicine. Narcotic analgesia in the acute abdomen-a review of prospective trials. 8(2):131-136, June 2001.
McHALE, P.M. 1; LoVECCHIO, F. 2 *
Withholding administration of narcotic analgesia in patients with acute abdominal pain for fear of masking pathology is still pervasive in current medical practice. We reviewed all the prospective trials that investigated the safety, adverse affects, and ultimate outcome in patients with acute abdominal pain receiving narcotic analgesia within the emergency department (ED). No adverse outcomes or delays in diagnosis could be attributed to the administration of analgesia. Based on this research, we propose that it is safe and humane to administer narcotic pain relief to patients presenting to the ED with acute abdominal pain provided no contraindications exist.
There are several meta-analysis looking at prospective studies that show no change in management, just peruse and you'll find them. The results have been repeatedly shown from Annals of Critical Care, to Pediatrics, to IM and anesthesia. Please please please spread the word. (and print out an article for your misinformed resident from ACOS
).