• Anne-Maree Kelly, Catherine Brumby, and Caroline Barnes.
• Joseph Epstein Centre for Emergency Medicine Research, Western Hospital, Melbourne, Victoria, Australia. anne-maree.kelly@wh.org.au
• Can J Emerg Med. 2005 May 1;7(3):149-54.

ObjectivesTraditionally, patients have to wait until assessed by a physician for opioid analgesia to be administered, which contributes to delays to analgesia. Western Hospital developed a protocol enabling nurses to initiate opioid analgesia prior to medical assessment for selected conditions. The aim of this study was to determine the impact of this protocol on time to first opioid dose in patients presenting to the emergency department (ED) with renal or biliary colic.MethodsThis was an explicit medical record review of all adult patients with an ED discharge diagnosis of renal or biliary colic presenting to a metropolitan teaching hospital ED. Patients were identified via the ED data management system. Data collected included demographics, condition, triage category, time of presentation, whether analgesia was nurse-initiated or not, and interval from arrival to first opioid analgesic dose. The narcotic drug register for the relevant period was also searched to cross-check whether opiates were doctor- or nurse-initiated.ResultsThere were 58 presentations in the nurse-initiated opioid analgesia group and 99 in the non-nurse-initiated analgesia group. Groups were reasonably well matched for gender, triage category and time of presentation, but there was a higher proportion of biliary colic in the non-nurse-initiated analgesia group. Median time to first analgesic dose was 31 minutes in the nurse-initiated group and 57 minutes in the non-nurse-initiated analgesia group (effect size, 26 minutes; 95% confidence interval 16-36 min; p < 0.0001]. There were no major adverse events in either group.ConclusionA nurse-initiated opioid analgesia protocol reduces delays to opioid analgesia for patients with renal and biliary colic.

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